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Scientific Data Documentation
Tuberculin Test Results (1971-75)
DSN: CC37.HANES1.TB


ABSTRACT
                              GENERAL INFORMATION
               HEALTH AND NUTRITION EXAMINATION SURVEY, 1971-1975


 Contents

 HANES 1971-1975
     Description of Survey
     Target Population
     Data Collection

 Use of HANES Data

 Errors in the Data Sets and Survey Differences

 Variance Estimation

 General Notes
     Demographic Data

 Demographic Data Summary

 Record Layout
     Demographic Data

 Detailed Notes
     Demographic Data


DESCRIPTION OF SURVEY

 Description of Survey:  A detailed description of the design, content and
 operation of HANES I is provided in the following reports:  Plan and
 Operation of the Health and Nutrition Examination Survey, DHEW Pub. No.
 (HSM) 73-1310, Series 1, Nos. 10a and 10b, Public Health Service,
 Washington, D. C., U. S.  Government Printing Office, February 1973.  Also
 provided is a draft report on the augmentation survey of adults describing
 the relevant field work conducted between July 1974 and October 1975.

TARGET POPULATION

 Target Population:  HANES I was conducted on a nationwide probability
 sample of approximately 32,000 persons, ages 1-74 years, from the
 civilian, noninstitutionalized population of the coterminous United
 States, excepting those persons residing on Indian reservations.  The
 survey started in April 1971 and for many survey components was completed
 in June 1974.  The HANES I sample was selected so that certain population
 groups thought to be at high risk of malnutrition (persons with low
 incomes, preschool children, women of childbearing age and the elderly)
 were oversampled at known rates.  Adjusted sampling weights were then
 computed within 60 age, sex and race categories in order to inflate the
 sample in such a manner as to closely reflect the noninstitutionalized
 population, ages 1-74 years, of the United States at the midpoint of the
 survey.

 Although the main emphasis of HANES I was on nutrition, a subset of those
 sample persons aged 25-74 received a more detailed health examination
 which was continued through October 1975.  No particular oversampling of
 subgroups of the population was done in this subsample (e.g., women of
 childbearing age were not oversampled as they were for the major nutrition
 component of HANES I). This subsample is also representative of the United
 States population aged 25-74 during the time of HANES I.

 After the nutrition survey was completed, the detailed examination given
 to the 25-74 age group was continued until the total number of examined
 persons was approximately double the number of examinees who received the
 detailed examination during the nutrition survey.

DATA COLLECTION

 Data Collection:  Information for all examined sample persons in HANES I
 was obtained by means of a household interview, a general medical history,
 a 24-hour dietary intake recall interview, a food frequency interview, a
 food program questionnaire, a general medical examination, dental,
 dermatological and ophthalmological examinations, anthropometric
 measurement, hand-wrist x-rays (of those ages 1-17 only) and 24
 hematological, blood chemistry, and urological laboratory determinations.

 In addition to the information received on all examined persons by means
 of the above questionnaires, procedures and measurements, the following
 data were gathered on the subsample of adults aged 25-74:  a medical
 history supplement; supplementary questionnaires concerning arthritis,
 respiratory and cardiovascular conditions (when applicable); a health care
 needs question- naire; a general well-being questionnaire; an extended
 medical examination; x-rays of the chest and hip and knee joints;
 audiometry, electrocardiography; goniometry; spirometry; pulmonary
 diffusion and tuberculin tests; along with additional laboratory
 determinations.

USE OF HANES DATA

 With the goal of mutual benefit, NCHS requests the cooperation of
 recipients of data tapes in certain actions related to their use:

     A.   Any published material derived from the data should acknowledge
          the National Center for Health Statistics as the original source.
          It should also include a disclaimer which credits any analyses,
          interpretations, or conclusions reached to the author (recipient
          of the tape) and not to NCHS, which is responsible only for the
          initial data.

     B.   Consumers who wish to publish a technical description of the data
          will make a reasonable effort to insure that the description is
          not inconsistent with that published by NCHS.  This does not
          mean, however that NCHS will review such descriptions.

ERRORS IN THE DATA SETS AND SURVEY DIFFERENCES

 The data users' tapes have been subjected to a great deal of careful
 editing.  However, due to the large volume of data in the series, it is
 likely that a small number of errors or discrepancies remain undetected.
 We would appre- ciate if any such errors are detected that they be brought
 to our attention so that new corrected copies of the tape can be created
 and errata sheets issued to previous purchasers.

 Some of the continuous data items have extremely high or low values and we
 have verified that they do in fact appear that way on the hard documents;
 that is, we have verified that the values have not been incorrectly keyed.

 In general, we have not attempted to resolve any differences that may
 exist between estimates derived from the various subsamples of HANES I.
 Nor have we made any comparisons between estimates from HANES I and
 previous surveys conducted by the Division of Health Examination
 Statistics.

VARIANCE ESTIMATION

 Because the Health and Nutrition Examination Survey is based upon a
 complex sample design, the assumptions of many statistical tests and
 routinely avail- able statistical programs are not met.  For this reason,
 when estimates of the variances of statistics from HANES are computed, the
 technique of estimation must be based upon complex sampling theory.  In
 order to provide the user with the capability of estimating the complex
 sample variances, we have provided Strata and Primary Sampling Unit (PSU)
 codes on the HANES user tapes in tape positions 194-198.  However, these
 codes are suitable for making variance estimates only for examination
 locations 1-65 and 1-100.  To compute variance estimates for examination
 locations 1-35 or 66-100, it is necessary to recode the current Strata-PSU
 codes according to the specifications that follow.  The resultant recoded
 Strata-PSU codes should be used only for locations 1-35 and 66-100.

 One computer program that should be widely available sometime around the
 summer of 1978 as part of the Statistical Analysis System (available from
 the SAS Institute, Inc., Post Office Box 10066, Raleigh, North Carolina
 27605) is capable of using the Strata-PSU codes provided for HANES to
 compute complex sample variances.  Other programs may also be available.

 In those Strata, referred to as certainty or self-representing Strata, the
 PSU codes are actually the segment numbers.  Neither the Strata codes nor the
 PSU codes are the original codes used in the formation of the HANES sample
 design, but are nonetheless a unique Recoding of the original codes.  For
 further discussion of the sample design of HANES, the user should consult
 the publications of the National Center for Health Statistics--Series-Nos.
 10a and 14 and the detailed note for tape positions 158-193.


                 Recode Specifications for Strata-PSU Codes

 First.--Create a files with only those records in the file for examination
 locations 1-35.*

 Second.--Retain 1he original Strata-PSU codes in Strata 7-10 and 13 in the
 original form as the recoded Strata-PSU codes.

 Third.--Recode the remaining strata according tot he chart below.

 Fourth.--Repeat the process for examination locations 66-100.*

 Old Strata #
 (tape positions 194-195)           New Strata #                      New PSU

       01                          01                                      001
       02                          01                                      002
       03                          03                                      001
       06                          03                                      002
       04                          04                                      001
       05                          04                                      002
       11                          11                                      001
       12                          11                                      002
       14                          14                                      001
       21                          14                                      002
       15                          15                                      001
       16                          15                                      002
       17                          17                                      001
       20                          17                                      002
       18                          18                                      001
       19                          18                                      002
       22                          22                                      001
       25                          22                                      002
       23                          23                                      001
       24                          23                                      002
       26                          26                                      001
       27                          26                                      002
       28                          28                                      001
       29                          28                                      002
       30                          30                                      001
       35                          30                                      002
       31                          31                                      001
       32                          31                                      002
       33                          33                                      001
       34                          33                                      002

       *See detailed note for tape positions 158-193.

GENERAL NOTES, DEMOGRAPHIC DATA, HANES I

 Demographic Information: An advance letter, announcing the forthcoming
 arrival of an interviewer from the U. S. Bureau of the Census, was mailed
 to each household that fell into the sample area. The interviewer
 subsequently visited the household to ascertain its composition and to
 administer a questionnaire, the primary purpose of which was to obtain
 demographic information.  The questionnaire was administered to each
 potential sample person that was available and competent enough to respond
 to questions.  In the event that a potential sample person was not at home
 at the time of interview, any responsible adult in the household was asked
 to respond to the questions for the absent person.

 Asterisks on the Tape Description: Some of the data items were obtained
 only for a particular subsample of HANES. Consequently some of these items
 appear to have a great deal of missing data (coded as blank) due to
 nonresponse, but in fact the data are missing because the design of HANES
 dictated that the item was to be obtained only for a particular subsample.
 (For further discussion of the various subsamples in HANES the user should
 see the detailed note for tape positions 158-193.)

 To alert the user to this fact asterisks were put on the tape des-
 cription. One asterisk denotes that the data item was obtained only on
 examinees at locations 1-65, two asterisks denote that it was ob- tained
 only at location 66-100 and three asterisks denote that it was obtained
 only on examinees receiving the detailed examination.

DEMOGRAPHIC DATA SUMMARY - HANES I
                                                                      Tape
                                                                     Positions
 Sample sequence number .............................................  1
 Size of place ...................................................... 10
 SMSA-not SMSA ...................................................... 11
 Type of living quarters............................................. 12
 Land usage ......................................................... 13
 If rural, asked - How many acres of land are included .............. 14
 If 10 acres/more asked - Sale of crops/etc. amount to $50 or more .. 15
 If 10 acres/less asked - Sale of crops/etc. amount to $250 or more . 16
 Age - head of household ............................................ 17
 Sex - head of household ............................................ 19
 Highest grade attended - head of household ......................... 20
 Race - head of household ........................................... 22
 Total number of persons in household ............................... 23
 Total sample persons in household .................................. 25
 Number of rooms in house ........................................... 27
 Is there piped water ............................................... 28
 If yes, is there hot and cold piped water .......................... 29
 If yes to piped water - Does house have a sink with piped water .... 30
 Does house have a range or cook stove .............................. 31
 Does house have a refrigerator ..................................... 32
 Are kitchen facilities used by anyone not living in household ...... 33
 Total family income group .......................................... 34

 NOTE:  The following income questions were asked only if "Total Family
        Income" was less than $7,000
                                                                      Tape
                                                                     Positions

 During Past Year Did you or Any Members of Your Family Receive Money From:
 Wages or salaries .................................................. 36

 If yes - How much altogether before deductions ..................... 37
 Social Security or Railroad Retirement ............................. 41
 If yes - How much altogether ....................................... 42
 Welfare payments or other public assistance ........................ 46
 If yes - How much altogether ....................................... 47
 Unemployment or Workman's Compensation ............................. 51
 If yes - How much altogether ....................................... 52
 Government employee pensions or private pensions ................... 56
 If yes - How much altogether ....................................... 57
 Dividends, interest or rent ........................................ 61
 If yes - How much altogether ....................................... 62
 Net income from own non-farm business, professional practice or
   partnership ...................................................... 66
 If yes - How much altogether ....................................... 67
 Net income from a farm ............................................. 71
 If yes - How much altogether ....................................... 72
 Veteran's payments ................................................. 76
 If yes - How much altogether ....................................... 77
 Alimony, child support or contributions from persons not living in
   household ........................................................ 81
 If yes - How much altogether ....................................... 82
 Any other income ................................................... 86
 If yes - How much altogether ......................................  87
 Total amount....................................................... 91
 Family unit code ................................................... 95
 Relationship to head of household .................................. 100
 Age at interview ................................................... 101
 Race of examined person ............................................ 103
 Sex of examined person ............................................. 104
 Marital status ..................................................... 105
 Date of birth (month and year) ..................................... 106
 Place of birth ..................................................... 110
 Highest grade of regular school ever attended ...................... 112
 Did he finish the grade ............................................ 114
 Is he attending school now ......................................... 115
 Has he ever attended a school of any kind .......................... 116
 If yes - What kind of school ....................................... 117
 Any language other than English frequently spoken in the household.. 118
 If yes - What language ............................................. 119
 What is your main ancestry or national origin ...................... 120
 What was he doing most of past three months ........................ 122
 If "something else" - What was he doing ............................ 123
 If "keeping house" or "something else" - Did he work at a job or
   business at any time during the past three months ................ 124
 If "working" - Did he work full-time or part-time .................. 125
 Did he work at any time last week or week before (not around house). 126
 If no - Even though he did not work during that time, does he have
   a job or business ................................................ 127


                                                                      Tape
                                                                     Positions
 Was he looking for work or on lay-off from a job ................... 128
 If yes - Which ..................................................... 129
 Class of worker .................................................... 130
 If self-employed in "own" business and not a farm, is the business
   incorporated ..................................................... 131
 Business or industry code .......................................... 132

 Occupation code .................................................... 135
 Date of examination ................................................ 138
 Age at examination ................................................. 144
 Farm/non-farm ...................................................... 146

 Poverty index ...................................................... 147
 Region ............................................................. 150

 FOOD PROGRAMS APPLICABILITY ........................................ 151

 Are you certified to participate in the food stamp program? ........ 152
 Are you buying food stamps now? .................................... 153
 What is the main reason you aren't participating in the program? ... 154
 Are you certified to participate in commodity distribution program?. 155
 Are you receiving commodity foods now for your family? ............. 156
 Why aren't you participating in the program? ....................... 157

 SAMPLE WEIGHTS ..................................................... 158

 STRATA - Primary Sampling Unit (PSU) ............................... 194

RECORD LAYOUT, DEMOGRAPHIC DATA

                HEALTH AND NUTRITION EXAMINATION SURVEY (HANES I)

 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

         DEMOGRAPHIC DATA

 1-5     Sample Sequence Number

 6-9     Catalog Number

 10      Size of Place
         Urbanized area with:
         1 - 3,000,000 or more                            Hshld Questionnaire
         2 - 1,000,000 to 2,999,999                       See Detailed Notes
         3 - 250,000 to 999,999
         4 - under 250,000
         5 - Urban place 25,000 or more
             outside urbanized area
         6 - Urban place 10,000 to 24,999
             outside urbanized area
         7 - Urban place 2,500 to 9,999
             outside urbanized area
         8 - Rural

 11      SMSA - Not SMSA
         1 - In SMSA, in central city                     Hsehld Questionnaire
         2 - In SMSA, not in central city                 See Detailed Notes
         3 - Not in SMSA

 12      Type of Living Quarters
         1 - Housing Unit                                 Hsehld Questionnaire
         2 - Other unit

 13      Land Usage
         1 - All other                                    Hsehld Questionnaire
         2 - Rural  7136

 14      If Rural, asked
         How Many Acres of Land Are Included?             Hsehld Questionnaire
         1 - 10 or more acres
         2 - Less than 10 acres
         9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 15      If 10 acres or more, asked if
         Sale of Crops, Etc. Amount to $50 or more?       Hsehld Questionnaire
                   2 - Yes
                   4 - No
                   9 - Not applicable

 16      If 10 acres or less, asked if
         Sale of Crops, Etc. Amount to $250 or more?      Hsehld Questionnaire
                   3 - Yes
                   5 - No
                   9 - Not applicable

 17-18   Age - Head of Hsehld
                   16-92 as given                         Hsehld Questionnaire
                   00 Blank, but applicable

 19      Sex - Head of Hsehld                             Hsehld Questionnaire
                   1 - Male
                   2 - Female

 20-21   Highest Grade Attended - Head of Hsehld
                   10 - None                              Hsehld Questionnaire
                   21 - 1st grade
                   22 - 2nd grade
                   23 - 3rd grade
                   24 - 4th grade
                   25 - 5th grade
                   26 - 6th grade
                   27 - 7th grade
                   28 - 8th grade
                   31 - 9th grade
                   32 - 10th grade
                   33 - 11th grade
                   34 - 12th grade
                   41 - First year of college
                   42 - Second year of college
                   43 - Third year of college
                   44 - Fourth year of college
                   45 - Graduate
                   88 - Blank, but applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 22      Race - Head of Household
                   1 - White                              Hsehld Questionnaire
                   2 - Negro                              See Detailed Notes
                   3 - Other

 23-24   Total Number of Persons in Household
                   01-19 - As given                       Hsehld Questionnaire

 25-26   Total Sample Persons in Household
                   01-07 - As given                       Hsehld Questionnaire

 27      Number of Rooms in House
                   1-8 - As given                         Hsehld Questionnaire
                     9 - 9 or more

 28      Is there piped water?
                   1 - Yes                                Hsehld Questionnaire
                   2 - No

 29      If yes
         Is there Hot  and Cold piped water?
                   1 - Yes                                Hsehld Questionnaire
                   2 - No
                   9 - Not applicable

 30      If yes to piped water -
         Does House Have a Sink with Piped Water?
                   1 - Yes                                Hsehld Questionnaire
                   2 - No
                   9 - Not applicable

 31      Does House Have a Range or Cook Stove?
                   1 - Yes                                Hsehld Questionnaire
                   2 - No


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 32      Does House have a Regrigerator?
                1 - Yes                                   Hsehld Questionnaire
                2 - No

 33      Are kitchen facilities used by anyone not living
          in household?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                9 - Not applicable

 34-35   Total Family Income Group
                11 - Under $1,000(including loss)         Hsehld Questionnaire
                12 - $1,000-1,999                          See Detailed Notes
                13 - $2,000-2,999
                14 - $3,000-3,999
                15 - $4,000-4,999
                16 - $5,000-5,999
                17 - $6,000-6,999
                18 - $7,000-9,999
                19 - $10,000-14,999
                20 - $15,000-19,999
                21 - $20,000-24,999
                22 - $25,000 and over
                88 - Blank, but applicable

         NOTE:  The following income questions were asked only
                if "Total Family Income" was less than $7,000

         DURING PAST YEAR DID YOU OR ANY MEMBERS OF YOUR FAMILY
         RECEIVE MONEY FROM:

 36      Wages or Salaries?
                1 - Yes                                  Hsehld Questionnaire
                2 - No
                3 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 37-40   If yes to above, how much altogether
          before deductions?
                0001-8000 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 41      Social Security or Railroad Retirement?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                3 - Blank, but applicable
                9 - Not applicable

 42-45   If yes to above, how much altogether?
                0001-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 46      Welfare Payments or Other Public Assistance?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                3 - Blank, but applicable
                9 - Not applicable

 47-50   If yes to above, hyow much altogether?
                0001-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 51      Unemployment or Workmen's Compensation?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 52-55   If yes to above, how much altogether?
                0001-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 56      Government Employee Pensions or Private Pensions?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 57-60   If yes to above, how much altogether?
                0001-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 61      Dividends, interest or rent?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 62-65   If yes to above, how much altogether?
                0001-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 66      Net income from own non-farm business, professional
          practice or partnership?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                3 - Loss
                8 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 67-70   If yes to above, how much altogether?
                0000-7500 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 71      Net income from a farm?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                3 - Loss
                8 - Blank, but applicable
                9 - Not applicable

 72-75   If yes to above, how much altogether?
                0000-7500 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 76      Veteran's Payments?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 77-80   If yes to above, how much altogether?
                0001-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 81      Alimony, child support or contributions from persons
          not living in Hsehld?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 82-85   If yes to above, how much altogether?
                0001-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 86      Any other income?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 87-90   If yes to above, how much altogether?
                0001-6900 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 91-94   Total Amount (Total of Positions 37-90)
                0000-6999 - As given                      Hsehld Questionnaire
                8888 - Blank, but applicable
                9999 - Not applicable

 95-99   FAMILY UNIT CODE                                 Computer generated
                00001-23180                               See Detailed Notes

 100     Relationship to Head of Household (Hsehld Questionnaire)
                1 - Head (1 person living along or with non-relatives)  1920
                2 - Head (2 or more related persons in family)          4912
                3 - Wife                                                5256
                4 - Child                                               7733
                5 - Other relative                                       928

 101-2   Age at Interview
                01-74 - As given                          Hsehld Questionnaire


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 103     Race of Examined Person
                1 - White                                 Hsehld Questionnaire
                2 - Negro                                 See Detailed Notes
                3 - Other

 104     Sex of Examined Person
                1 - Male                                  Hsehld Questionnaire
                2 - Female

 105     Marital Status
                1 - Under 17                              Hsehld Questionnaire
                2 - Married
                3 - Widowed
                4 - Never Married
                5 - Divorced
                6 - Separated
                8 - Blank, but applicable

 106-9   Date of Birth (month, year)
                01-12 - Month as given                    Hsehld Questionnaire
                00-99 - Year (1896-1973) as given

 110-11  Place of Birth (As given)
                01-02                                     Hsehld Questionnaire
                04-06                                     See Detailed Notes
                08-13
                15-42
                44-51
                53-56
                60-81
                91-97
                88 - Blank, but applicable       144


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 112-13  Highest Grade of regular school ever attended?
                10 - None                                 Hsehld Questionnaire
                21 - 1st grade
                22 - 2nd grade
                23 - 3rd grade
                24 - 4th grade
                25 - 5th grade
                26 - 6th grade
                27 - 7th grade
                28 - 8th grade
                31 - 9th grade
                32 - 10th grade
                33 - 11th grade
                34 - 12th grade
                41 - First year of college
                42 - Second year of college
                43 - Third year of college
                44 - Fourth year of college
                45 - Graduate
                77 - Special school
                88 - Blank, but applicable
                99 - Not applicable

 114     Did he finish the grade?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 115     Is he attending school now?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 116     Has he ever attended a school
          of any kind?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 117     If yes, what kind of school?
                1 - Nursery                               Hsehld Questionnaire
                2 - Kindergarten
                3 - Other
                4 - Headstart
                5 - Daycare
                8 - Blank, but applicable
                9 - Not applicable

 118     Is any language other than English frequently spoken
          in the household?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable

 119     If yes, what language?
                0 - German                                Hsehld Questionnaire
                1 - Italian
                2 - French
                3 - Polish
                4 - Russian
                5 - Spanish
                6 - Chinese
                7 - Other language
                8 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 120-21  What is your main ancestry or national origin?
                00 - German                               Hsehld Questionnaire
                01 - Irish
                02 - Italian
                03 - French
                04 - Polish
                05 - Russian
                06 - English
                07 - Spanish
                08 - Mexican
                09 - Chinese
                10 - Japanese
                11 - American Indian
                12 - Negro
                13 - Jewish
                14 - American
                15 - Other
                88 - Blank, but applicable
                99 - Don't know

 122     What was he doing most of past three months?
                1 - Working                               Hsehld Questionnaire
                2 - Keeping house
                3 - Something else
                8 - Blank, but applicable
                9 - Not applicable

 123     If "something else" from above, what was he doing?
                0 - Laid off                              Hsehld Questionnaire
                1 - Retired
                2 - Student
                3 - Other
                4 - Ill
                5 - Staying home
                6 - Looking for work
                7 - Unable to work
                8 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 124     If "keeping house" or "something else" from above,
         did he work at a job or business at any time during
         the past three months?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 125     If "Working" from above, did he work full-time or
         part-time?
                1 - Full-time                             Hsehld Questionnaire
                2 - Part-time
                8 - Blank, but applicable
                9 - Not applicable

 126     Did he work at any time last week or the week before
         (not around house)?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 127     If "no" to above, even though he did not work during
         that time, does he have a job or business?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 128     If "no" in Position 126, was he looking for work or
         on lay-off from a job?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 129     If yes to above - which?
                1 - Looking                               Hsehld Questionnaire
                2 - Lay-off
                3 - Both
                8 - Blank, but applicable
                9 - Not applicable

 130     Class of Worker
                1 - Private paid                          Hsehld Questionnaire
                2 - Government-Federal
                3 - Government-Other
                4 - Own
                5 - Non-paid
                6 - Never worked
                8 - Blank, but applicable
                9 - Not applicable

 131     If self-employed in "own" business and not a farm,
         is the business incorporated?
                1 - Yes                                   Hsehld Questionnaire
                2 - No
                8 - Blank, but applicable
                9 - Not applicable

 132-34  Business or Industry Code
                017-999 - As given                        Hsehld Questionnaire

 135-37  Occupation Code
                001-995 - As given                        Hsehld Questionnaire

 138-43  Date of Examination
                Month - 01-12 as given                    Control Record
                Day   - 01-31 as given
                Year  - 71-75 as given


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 144-45  Age at Examination
                01-75 - As given                          Computer Generated

 146     Farm
                1 - Farm                                  Computer Generated
                2 - Nonfarm                               See Detailed Notes

 147-49  Poverty Index (X.XX)
                001-997 - As given                        Computer Generated
                998 - Index computed 998                  See Detailed Notes
                      or greater
                999 - Unknown

 150     Region
                1 - Northeast                             Computer Generated
                2 - Midwest                               See Detailed Notes
                3 - South
                4 - West

 151     FOOD PROGRAMS APPLICABILITY
                1 - Not applicable                        Food Programs Quest.
                2 - No program available
                3 - Food stamps available
                4 - Commodities available
                8 - Blank, but applicable

 152     Are you certified to participate in the food stamp
         program?
                1 - Yes                                   Food Programs Quest.
                2 - No
                9 - Don't know
                Blank


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

 153     Are you buying stamps now?
                1 - Yes, regularly                        Food Programs Quest.
                2 - Yes, occasionally
                3 - No
                8 - Blank, but applicable
                Blank

 154     What is the main reason you aren't participating
         in the program?
                1 - No need                               Food Programs Quest.
                2 - Not enough money at the time
                3 - No transportation
                4 - Pride
                5 - Other
                8 - Blank, but applicable
                Blank

 155     Are you certified to participate in the commodity
         distribution program?
                1 - Yes                                   Food Programs Quest.
                2 - No
                9 - Don't know
                Blank

 156     Are you receiving commodity foods now for your
         family?
                1 - Yes, regularly                        Food Programs Quest.
                2 - Yes, occasionally
                3 - No
                8 - Blank, but applicable
                Blank

 157     Why aren't you participating in the program?
                1 - No need                               Food Porgrams Quest.
                2 - No transportation
                3 - Pride
                4 - Other
                8 - Blank, but applicable
                Blank


 Tape                                          Control    HANES I Data
 Loc.    ITEM DESCRIPTION & CODES              Counts     Source

            SAMPLE WEIGHTS

 158-63  Detailed Persons, Location 01-35                 See Detailed Notes
         Blanks

 164-69  All Sample Persons, Locations 01-35              See Detailed Notes
         Blanks

 170-75  Detailed Persons, Locations 01-65                See Detailed Notes
         Blanks

 176-81  All Sample Persons, Locations 01-65              See Detailed Notes
         Blanks

 182-    Work Area
 193

 194-    STRATA 1/
 195

 196-         Primary Sampling Unit1/
 198

 199-    Work Area
 200

              1/Use only for producing variance estimates for
              examination locations 1-65 or 1-100.  See General
              Note titled "Variance Estimation" for producing
              variance estimates for examination locations
              1-35 or 66-100.


DETAILED NOTES, DEMOGRAPHIC DATA

 Tape Position 10 - Size of Place
 
 Size of place classification was derived from the 1960 census.  According
 to the definition used in the 1960 census, the urban population was comprised
 of all persons living in (a) places of 2,500 inhabitants or more incorporated
 as cities, boroughs, villages and towns (except towns in New York, New
 England, and Wisconsin); (b) the densely settled urban fringe, whether
 incorporated or unincorporated, or urbanized areas; (c) towns in New England
 and townships in New Jersey and Pennsylvania which contained no incorporated
 municipalities as subdivisions and had either 2,500 inhabitants or more, or
 a population of 2,500 to 25,000 and a density of 1,500 persons or more per
 square mile; (d) counties in states other than the New England states, New
 Jersey, and Pennsylvania, that had no incorporated municipalities within
 their boundaries and had a density of 1,500 persons per square mile; and
 (e) unincorporated places of 2,500 inhabitants or more not included in any
 urban fringe.  The remaining population was classified as rural.

 Urban areas are further classified by population size for places within
 urbanized areas and other places outside urbanized areas.

 Tape Position 11 - SMSA
 
 A standard metropolitan statistical area is basically a county or a group
 of contiguous counties which contains at least one city of 50,000
 inhabitants or more, or "twin cities" with a combined population of at
 least 50,000.  In addition to the county or counties containing such a
 city or cities, contiguous counties are included in an SMSA if, according
 to the 1960 Census, they are socially and economically integrated with the
 central city.  Each SMSA must include at least one central city, and the
 complete title of an SMSA identifies the central city or cities.

 Tape Positions 22 and 103 - Race
 
 The race of the respondent was marked by observation and it was assumed
 the race of all related persons was the same as the respondent unless
 otherwise learned.  The race categories were "White", "Negro", or "other."
 If the appropriate category could not be marked by observation, then race
 was asked.  Persons of races other than White or Negro, such as Japanese,
 Chinese, American Indian, Korean, Hindu, Eskimo, etc. were reported as
 "Other."  Mexicans were included with "White" unless definitely known to
 be American Indian or of other nonwhite race.

 Tape Positions 34-35 - Total Family Income Group
 
 The income group represents the total combined family income for the past
 twelve (12) months.  It includes income from all sources such as wages,
 salaries, social security or retirement benefits, help from relatives,
 rent from property and so forth.  The income groups were not reconciled to
 the component parts (tape positions 36-94).  The income component parts
 were not asked when the gross income was greater than $6,999 per annum.
 However, amounts greater than $6,999 appear in tape positions 37-40,
 67-70, and 72-75.  Some respondents reported a loss of income from their
 nonfarm business, professional practice, partnership or farm and this
 explains why some data fields are greater than $6,999, but the individual
 total in tape positions 91-94 does not exceed this figure.

 Tape Positions 95-99 - Family Unit Code
 
 All related sample persons in the same family unit have the same computer
 generated family unit code.  This will enable detailed analysis of the
 individual family unit.

 Tape Positions 110-111 - State Codes
 
 UNITED STATES                              OUTLYING AREAS OF THE U.S.
                    Standard
                    Abbreviation     Code   Name of Place                  Cod

 ALABAMA            Ala.              01     American Samoa                 60
 ALASKA             Alaska            02     Canal Zone                     61
 ARIZONA            Ariz.             04     Canton and Enderbury Islands   62
 ARKANSAS           Ark.              05     Caroline Islands               63
 CALIFORNIA         Calif.            06     Cook Islands                   64
 COLORADO           Colo.             08     Gilbert and Ellice Islands     65
 CONNECTICUT        Conn.             09     Guam                           66
 DELAWARE           Del.              10     Johnston Atoll                 67
 DIST. OF COLUMBIA  D.C.              11     Line Islands - Southern        68
 FLORIDA            Fla.              12     Mariana Islands                69
 GEORGIA            Ga.               13     Marchall Islands               70
 HAWAII             Hawaii            15     Midway Islands                 71
 IDAHO              Idaho             16     Puerto Rico                    72
 ILLINOIS           Ill.              17     Ryukyn Islands - Southern      73
 INDIANA            Ind.              18     Swan Islands                   74
 IOWA               Iowa              19     Tokelau Islands                75
 KANSAS             Kans.             20     U.S. Misc. Caribbean           76
 KENTUCKY           Ky.               21     U.S. Misc. Pacific Islands     77
 LOUISIANA          La.               22     Virgin Islands                 78
 MAINE              Maine             23     Wake Islands                   79
 MARYLAND           Md.               24     Cuba                           80
 MASSACHUSETTS      Mass.             25     West Indies                    81
 MICHIGAN           Mich.             26     North America                  91
 MINNESOTA          Minn.             27     South America                  92
 MISSISSIPPI        Miss.             28     Europe                         93
 MISSOURI           Mo.               29     Africa                         94
 MONTANA            Mont.             30     Asia                           95
 NEBRASKA           Nebr.             31     Australasia                    96
 NEVADA             Nev.              32     Pacific Islands                97
 NEW HAMPSHIRE      Nebr.             33
 NEW JERSEY         N.J.              34
 NEW MEXICO         N. Mex.           35
 NEW YORK           N.Y               36
 NORTH CAROLINA     N.C.              37
 NORTH DAKOTA       N. Dak.           38
 OHIO               Ohio              39
 OKLAHOMA           Okla.             40
 OREGON             Oreg.             41
 PENNSYLVANIA       Pa.               42
 RHODE ISLANDS      R.I.              44
 SOUTH CAROLINA     S.C.              45
 SOUTH DAKOTA       S. Dak.           46


 UNITED STATES
                    Standard
                    Abbreviation     Code

 TENNESSEE          Tenn.             47
 TEXAS              Tex.              48
 UTAH               Utah              49
 VERMONT            Vt.               50
 VIRGINIA           Va.               51
 WASHINGTON         Wash.             53
 WEST VIRGINIA      W. Va.            54
 WISCONSIN          Wis.              55
 WYOMING            Wyo.              56

 Tape Positions 132-134 and 135-137 - Industry & Occupation Codes
 
 A person's occupation may be defined as his principal job or business.
 For this survey purpose, the principal job or business of a respondent is
 defined in one of the following ways:  If the person worked during the two
 week interview period or had a job or business, the question concerning
 his occupation (or work) applies to his job during that period.  If the
 respondent held more than one job, the question is directed to the one at
 which he spent the most time.  It refers to the one he considers most
 important when  equal time is spent at each job.  A person who has not
 begun work at a new job, is looking for work, or is on layoff from work is
 questioned about his last full- time civilian job.  A full-time job is
 defined as one at which the person spen 35 or more hours per week and
 which lasted two consecutive weeks or more.  A person who has a job to
 which he has not yet reported and has never had a previous job or business
 is classified as a "new worker."

 The 1970 census of population Alphabetical Index of Industries and
 Occupations was used in the coding of both the industry and occupation.
 Library of Congress Number 74-612012.  For sale by the Superintendent of
 Documents, U.S.  Government Printing Office, Washington, D.C. 20402.
 $3.00.  Stock Number 0301-2283.

 Tape Position 146 - Land
 
 Land used for farming purposes (Code 1 in Tape Position 146) was
 identified as being rural land (Code 2 in Tape Position 13) consisting of
 10 or more acres (Code 1 in Tape Position 14) with crop sales amounting to
 $50 or more (Code 2 in Tape Position 15), or rural land (Code 2 in Tape
 Position 13) consisting of less than 10 acres (Code 2 in Tape Position 14)
 with crop sales amounting to $250 or more (Code 3 in Tape Position 16).
 All Other land is classified as nonfarm (Code 2 in Tape Position 146).

 Tape Positions 147-149 - Poverty Index
 
 Poverty Index--Income status was determined by the Poverty Income Ratio
 (PIR).  Poverty statistics published in the Census Bureau reports1/ were
 based on the poverty index developed by the Social Security Administration
 in 1964.  (For a detailed discussion of the SSA poverty standards, see
 reference 2.)  Modifications in the definition of poverty were adopted in
 1969.3/  The standard data series in poverty for statistical use by all
 executive departments and establishments has been established.4/

    The two components of the PIR are the total income of the household
 (numerator) and a multiple of the total income necessary to maintain a
 family with given characteristics on a nutritionally adequate food plan3/
 (denominator). The dollar value of the denominator of the PIR is
 constructed from a food plan (economy plan) necessary to maintain minimum
 recommended daily nutritional requirements.  The economy plan is
 designated by the Department of Agriculture for "emergency or temporary
 use when funds are low."

    For families of three or more persons, the poverty level was set at
 three times the cost of the economy food plan.  For smaller families and
 persons living alone, the cost of the economy food plan was adjusted by
 the relatively higher fixed expenses of these smaller households.

    The denominator or poverty income cutoff adjusts the family poverty
 income maintenance requirements by the family size, the sex of the family
 head, the age of the family head in families with one or two members, and
 the place of residence (farm, nonfarm).  Annual revisions of the poverty
 income cutoffs are based on the changes in the average cost of living as
 reflected in the Consumer Price Index.

    As shown in the table, the annual income considered to be the poverty
 level increases as the family size increases.  A family with any
 combination of characteristics and with the same income as shown in the
 table has been designated as having a PIR or poverty level of 1.0.  The
 same family with twic the income found in the table would have a PIR of
 2.0.  Ratios of less than 1.0 can be described as "below poverty," ratios
 greater than or equal to 1.0, as "at or above poverty."


    Poverty thresholds are computed on a national basis only.  No attempt
 has been made to adjust these thresholds for regional, State, or other
 local variation in the cost of living (except for the farm, nonfarm
 difference).  None of the noncash public welfare benefits such as food
 stamp bonuses or free food commodities are included in the income of the
 low income families receiving these benefits.

 1/   Current Populatrion Reports, "Consumer Income," Series P-60, No. 77,
      May 7, 1971
 2/   Orshansky, M.:  "Counting the Poor:  Another Look at the Poverty
      Profile, Social Security Bulletin, January 1965; "Who's Who Among the
      Poor: A Demographic View of Poverty," Social Security Bulletin, July
      1965.
 3/   Current Population Reports, "Special Studies," Series P-23, No. 28,
      August 12, 1969
 4/   Circular No. A-46, Transmitted Memorandum No. 9, Executive Office of
      the President, Bureau of the Budget, August 29, 1969, and Exhibit L
      (rev.)

     Weighted average thresholds at the low income level in 1971 by size of
              family and sex of head, by farm-nonfarm residence



                          Nonfarm                        Farm

    Size of family          Total

                                    Total  Male1 Female1  Total  Male1 Female1
                                            head  head            head   head



 All unrelated individuals- $2,033 $2,040 $2,136 $1,978  $1,727 $1,783  $1,669
    Under 65 years---------  2,093  3,098  2,181  2,017   1,805  1,853   1,715
    65 years and over------  1,931  1,940  1,959  1,934   1,652  1,666   1,643

 All families--------------  3,700  3,724  3,764  3,428   3,235  3,242   3,079
    2 persons--------------  2,612  2,633  2,641  2,581   2,219  2,224   2,130
    Head under 65 years----  2,699  2,716  2,731  2,635   2,317  2,322   2,195
    Head 65 years and over-  2,424  2,448  2,450  2,437   2,082  2,081   2,089
    3 persons--------------  3,207  3,229  3,248  3,127   2,745  2,749   2,627
    4 persons--------------  4,113  4,137  4,139  4,116   3,527  3,528   3,513
    5 persons--------------  4,845  4,880  4,884  4,837   4,159  4,159   4,148
    6 persons--------------  5,441  5,489  5,492  5,460   4,688  4,689   4,656
    7 persons or more------  6,678  6,751  6,771  6,583   5,736  5,749   5,516


    1For unrelated individuals, sex of the individual.

    SOURCE:  U.S. Department of Commerce, Social and Economic Statistics
 Administration, U.S. Bureau of the Census "Characteristics of the Low
 Income Population:  1971,"  Current Population Reports, Series P-60, No.
 86, p. 18.

 Tape Position 150 - Region
 
 The United States was divided into four broad geographic regions of
 approximately equal population. These regions, which deviate somewhat from
 the groups used by the Bureau of the Census, are as follows:


    Region                                        States Included

    Northeast                            Maine, Vermont, New Hampshire,
                                         Massachusetts, Connecticut, Rhode
                                         Island, New York, New Jersey, and
                                         Pennsylvania

    South                                Delaware, Maryland, District of
                                         Columbia, West Virginia, Virginia,
                                         Kentucky, Tennessee, North
                                         Carolina, South Carolina, Georgia,
                                         Florida, Alabama, Mississippi,
                                         Louisiana, and Arkansas

    Midwest                              Ohio, Illinois, Indiana, Michigan,
                                         Wisconsin, Minnesota, Iowa,
                                         Missouri

    West                                 Washington, Oregon, California,
                                         Nevada, New Mexico, Arizona,
                                         Texas, Oklahoma, Kansas, Nebraska,
                                         North Dakota, South Dakota, Idaho,
                                         Utah, Colorado, Montana, and
                                         Wyoming.

 Tape Positions 158-193 - HANES
 
 HANES is a multistage, stratified, probability sample of loose clusters of
 persons in land-based segments.  In addition, HANES is composed of two
 distinct examination components--a nutrition screening examination (taken
 by all examinees) and a more detailed examination taken by a pre-selected
 subsample of all examinees, ages 25-74.  For the nutrition screening
 examination, locations 1-35 and 1-65 constituted national probability
 samples and for the detailed examination, locations 1-35, 1-65, 66-100 and
 1-100 all constitute national probability samples.  In other words, HANES
 is composed of six distinct subsamples of the U.S. population.  For a more
 detailed discussion of the sample design see Series 1, No. 10a.
 
 Since each of these six subsamples is a distinct subsample of the U.S.
 population, such subsample requires a different set of weights.  The
 weights are based upon the probability of selection into the sample,
 adjustments for nonresponse and further adjustments to approximate the
 U.S. noninstitu- tionalized population as of the midpoint of each
 subsample.

 In order to select all of those examinees in a particular subsample, i.e.
 received a particular exam component, it is necessary to exclude all
 examinees with a weight of zero or blank.  It is also necessary to exclude
 all zero or blank weights because that is the only way to differentiate
 missing data due to nonresponse from data that is missing because the
 sample design dictated that a particular examinee was not supposed to
 receive particular examination component.

 It is suggested that any analyses that are desired by the researcher be
 per- formed using the greatest number of examinees possible; that is, if
 the researcher is interested in an exam component of the nutrition
 screening examination he should use the weight and consequently the data
 from the 65 location subsample rather than the 35 location subsample.  For
 the detailed examination, the researcher should use the 100 location
 subsample rather than one of the others.  However, some exam components
 were only done in a particular subsample; for example, only at the first
 35 locations.  In that case, the researcher has no choice in selecting a
 particular subsample.

 There may be occasions when a researcher may want to make comparisons of
 estimates obtained from various subsamples.  For example, the prevalence
 of some disease condition as estimated from the first 35 locations could
 be compared with an estimate based upon locations 66-100.  The researcher
 may also want to formulate hypotheses using 1 subsample and test those
 hypotheses using another subsample.


TB DATA SUMMARY - HANES I

          CHEST X-RAY, PULMONARY DIFFUSION, AND TUBERCULIN TEST RESULTS

                                     SUMMARY

                                                                       Tape
                                                                    Positions

 Catalog number - 4251 .................................................. 201

 Planimetry

 Left lung surface area ................................................. 205
 Right lung surface area ................................................ 210

 Thoracic diameter - PA ................................................. 215
 Thoracic diameter - lateral 1 .......................................... 219
 Thoracic diameter - lateral 2 .......................................... 223

 Tracheal diameter - T2 ................................................. 227
 Tracheal diameter - T3 ................................................. 230

 Lateral area........................................................... 233

 Heartsize

 A1-A2 .................................................................. 238
 B1-B2 .................................................................. 242
 C1-C2 .................................................................. 246
 D1-D2 .................................................................. 250
 E1-E2 .................................................................. 254

 Pathology First Readings

 Cardiopulmonary findings ............................................... 258

 Kyphosis ............................................................... 259
 Scoliosis .............................................................. 260
 Pectus ................................................................. 261
 Rib fractures .......................................................... 262
 Location of rib fractures .............................................. 263
 Minimum rib number right ............................................... 264
 Maximum rib number right ............................................... 266
 Minimum rib number left ................................................ 268
 Maximum rib number left ................................................ 270
 Healing status ......................................................... 272
 Nipple shadows ......................................................... 273
 Other extrapulmonary nodules ........................................... 274



                                                                       Tape
                                                                    Positions

 Intrapulmonary nodules ................................................. 275
 Size of largest ........................................................ 276
 Location of largest (stands 66-100) .................................... 279
 Specific lobe (stands 66-100) .......................................... 280
 Relative location of largest (stands 1-65) ............................. 282
 Size of second largest ................................................. 283
 Location of second largest (stands 66-100) ............................. 286
 Specific lobe (stands 66-100) .......................................... 287
 Relative location of second largest (stands 1-65) ...................... 289
 Number of nodules ...................................................... 290
 Number of segments containing nodules .................................. 291
 Are segments containing nodules contiguous? ............................ 292
 Etiology of nodules .................................................... 293
 Localized segmental infiltrates (stands 66-100)......................... 294
 Local of infiltrates:  Specific lobe (stands 66-100).................... 295
 Localized segmental infiltrates (stands 1-65) .......................... 297
 Diffuse nonsegmental nonhomogeneous infiltrates (stands 66-100) ........ 298
 Diffuse nonsegmental nonhomogeneous infiltrates (stands 1-65) .......... 299
 Underlying condition ................................................... 300
 Diffuse homogeneous symmetrical infiltrates ............................ 301
 Presumed etiology ...................................................... 302
 Proportion or fraction of PA X-ray which appears normal ................ 303
 Other infiltrates ...................................................... 304
 Emphysema .............................................................. 305
 Blebs or bullae ........................................................ 306
 Calcified nodes ........................................................ 307
 Enlarged nodes ......................................................... 309
 Pleural disease ........................................................ 310
 Location of pleural disease ............................................ 311
 Presumed cause of effusion ............................................. 312
 Azygos vein ............................................................ 313
 Locus of pulmonary artery enlargement .................................. 314
 Enlargement of right heart ............................................. 316
 Cephalization of pulmonary vessels ..................................... 317
 Interstitial fluid ..................................................... 318
 Kerley lines........................................................... 319
 Rosettes ............................................................... 320
 Alveolar fluid ......................................................... 321
 Enlargement of left heart .............................................. 322




                                                                      Tape
                                                                    Positions

 Pathology Second Readings

 Cardiopulmonary findings ............................................... 323
 Kyphosis ............................................................... 324
 Scoliosis .............................................................. 325
 Pectus ................................................................. 326
 Rib fractures .......................................................... 327
 Location of rib fractures .............................................. 328
 Minimum rib number right ............................................... 329
 Maximum rib number right ............................................... 331
 Minimum rib number left ................................................ 333
 Maximum rib number left ................................................ 335
 Healing status ......................................................... 337
 Nipple shadows ......................................................... 338
 Other extrapulmonary nodules ........................................... 339
 Intrapulmonary nodules ................................................. 340
 Size of largest ........................................................ 341
 Location of largest .................................................... 344
 Specific lobe .......................................................... 345
 Size of second largest ................................................. 348
 Location of second largest ............................................. 351
 Specific lobe .......................................................... 352
 Number of nodules ...................................................... 355
 Number of segments containing nodules .................................. 356
 Are segments containing nodules contiguous? ............................ 357
 Etiology of nodules .................................................... 358
 Localized segmental infiltrates ........................................ 359
 Local of infiltrates:  Specific lobe ................................... 360
 Diffuse nonsegmental nonhomogeneous infiltrates ........................ 363
 Underlying condition ................................................... 365
 Diffuse homogenous symmetrical infiltrates ............................. 366
 Presumed etiology ...................................................... 367
 Proportion or fraction of PA X-ray which appears abnormal .............. 368
 Other infiltrates ...................................................... 369
 Emphysema .............................................................. 370
 Blebs or bullae ........................................................ 371
 Calcified nodes ........................................................ 372
 Enlarged nodes ......................................................... 374
 Pleural disease ........................................................ 375
 Location of pleural disease ............................................ 376
 Presumed cause of effusion ............................................. 377
 Azygos vein enlarged ................................................... 378
 Locus of pulmonary artery enlargement .................................. 379
 Enlargement of right heart ............................................. 381




                                                                       Tape
                                                                    Positions

 Cephalization of pulmonary vessels ..................................... 382
 Interstitial fluid ..................................................... 383
 Kerley lines........................................................... 384
 Rosettes ............................................................... 385
 Alveolar fluid ......................................................... 386
 Enlargement of left heart .............................................. 387

 Pathology Final Readings

 Cardiopulmonary findings ............................................... 388

 Kyphosis ............................................................... 389
 Scoliosis .............................................................. 390
 Pectus ................................................................. 391
 Rib fractures .......................................................... 392
 Location of rib fractures .............................................. 393
 Minimum rib number right ............................................... 394
 Maximum rib number right ............................................... 396
 Minimum rib number left ................................................ 398
 Maximum rib number left ................................................ 400
 Healing status ......................................................... 402
 Nipple shadows ......................................................... 403
 Other extrapulmonary nodules ........................................... 404
 Intrapulmonary nodules ................................................. 405
 Size of largest ........................................................ 406
 Location of largest (stands 66-100) .................................... 409
 Specific lobe (stands 66-100) .......................................... 410
 Relative location of largest (stands 1-65) ............................. 412
 Size of second largest ................................................. 413
 Location of second largest (stands 66-100) ............................. 416
 Specific lobe (stands 66-100) .......................................... 417
 Relative location of second largest (stands 1-65) ...................... 419
 Number of nodules ...................................................... 420
 Number of segments containing nodules .................................. 421
 Are segments containing nodules contiguous? ............................ 422
 Etiology of nodules .................................................... 423
 Localized segmental infiltrates (stands 66-100)......................... 424
 Local of infiltrates:  Specific lobe (stands 66-100).................... 425
 Localized segmental infiltrates (stands 1-65) .......................... 427
 Diffuse nonsegmental nonhomogeneous infiltrates (stands 66-100) ........ 428
 Diffuse nonsegmental nonhomogeneous infiltrates (stands 1-65) .......... 429
 Underlying condition ................................................... 430
 Diffuse homogenous symmetrical infiltrates ............................. 431
 Presumed etiology ...................................................... 432
 Proportion or fraction of PA X-ray which appears abnormal............... 433
 Other infiltrates ...................................................... 434





                                                                      Tape
                                                                    Positions

 Emphysema .............................................................. 435
 Blebs or bullae ........................................................ 436
 Calcified nodes ........................................................ 437
 Enlarged nodes ......................................................... 439
 Pleural disease ........................................................ 440
 Location of pleural disease ............................................ 441
 Presumed cause of effusion ............................................. 442
 Azygos vein enlarged ................................................... 443
 Locus of pulmonary artery enlargement .................................. 444
 Enlargement of right heart ............................................. 446
 Cephalization of pulmonary vessels ..................................... 447
 Interstitial fluid ..................................................... 448
 Kerley lines........................................................... 449
 Rosettes ............................................................... 450
 Alveolar fluid ......................................................... 451
 Enlargement of left heart .............................................. 452

 Pulmonary Diffusion

 DLCO - First Trial ..................................................... 501
 DLCO - Second Trial .................................................... 504
 DLCO - Third Trial ..................................................... 507
 Summary DLCO........................................................... 510

 Tuberculin Test

 Site injected .......................................................... 551
 PPD-S Induration (left arm) ............................................ 552
 PPD-B Induration (right arm ) .......................................... 554
 Where were results read? ............................................... 556
 Days between test and reading .......................................... 557
 Type of reader ......................................................... 558
 Was test read? ......................................................... 559
 PPD-S and PPD-B both present:  difference in readings .................. 560
 Induration reading classification:  PPD-S and PPD-B .................... 563


RECORD LAYOUT, TB DATA

 Tape Locations 201-363
                NATIONAL HEALTH AND NUTRITION EXAMINATION SURVEY

                             (NHANES I - 1971-1975)

     CHEST X-RAY, PULMONARY DIFFUSION, AND TUBERCULIN TEST RESULTS DATA TAPE


  Tape                                         Control
  Loc.  ITEM DESCRIPTION & CODES               Counts   HANES I Data Source


        CHEST X-RAY DATA

 201-   Catalog Number
 204    4251                                     6913

          PLANIMETRY (STANDS 1-100)

 205-   Left lung surface area (sq. cm)                 See Detailed Notes
 209    (XXX.XX - decimal not shown on tape)
        06191 - 34523 - AS given                 6524
                8888 - Blank, but applicable      389

 210-   Right lung surface area (sq. cm)                See Detailed Notes
 214    (XXX.XX - decimal not shown on tape)
        09352 - 44832 - As given                 6523
                88888 - Blank, but applicable     390

 215-   Thoracic diameter - PA (cm)                     *See Detailed Notes
 218    (XX.XX - decimal not shown on tape)
        2001 - 3832 - AS given                   3545
               8888 - Blank, but applicable       309
        Blank                                    3059

 219-   Thoracic diameter - lateral 1 (cm)              *See Detailed Notes
 222    (XX.XX - decimal not shown on tape)
        1041 - 2805 - AS given                   3596
               8888 - Blank, but applicable       258
        Blank                                    3059


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 223-   Thoracic diameter - lateral 2 (cm)              *See Detailed Notes
 226    (XX.XX - decimal not shown on tape)
        1014 - 2850 - AS given                   3596
               8888 - Blank, but applicable       258
        Blank                                    3059

 227-   Tracheal diameter - T2 (cm)                     *See Detailed Notes
 229
        (X.XX - decimal not shown on tape)
        087 - 314 - As given                     3607
              888 - Blank, but applicable         247
        Blank                                    3059

 230-   Tracheal diameter - T3 (cm)                     *See Detailed Notes
 232
        (X.XX - decimal not shown on tape)
        091 - 291 - As given                     3605
              888 - Blank, but applicable         249
        Blank                                    3059

 233-   Lateral area (sq. cm)                           See Detailed Notes
 237    (XXX.XX - decimal not shown on tape)
        16324 - 70112 - As given                 6493
                88888 - Blank, but applicable     420


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  Loc.  ITEM DESCRIPTION & CODES               Counts   HANES I Data Source


          HEARTSIZE (STANDS 1-100)

 238-   A1-A2 (cm)                                      See Detailed Notes
 241    (XX.XX - decimal not shown on tape)
        0800 - 2199 - As given                   6503
               8888 - Blank, but applicable       410

 242-   B1-B2 (cm)                                      See Detailed Notes
 245    (XX.XX - decimal not shown on tape)
        1213 - 4026 - As given                   6503
               8888 - Blank, but applicable       410

 246-   C1-C2 (cm)                                      See Detailed Notes
 249    (XX.XX - decimal not shown on tape)
        0926 - 2380 - As given                   6493
               8888 - Blank, but applicable       420

 250-   D1-D2 (cm)                                      See Detailed Notes
 253    (XX.XX - decimal not shown on tape)
        0769 - 2040 - As given                   6521
               8888 - Blank, but applicable       392

 254-   E1-E2 (cm)                                      See Detailed Notes
 257    (XX.XX - decimal not shown on tape)
        0615 - 1923 - As given                   6504
               8888 - Blank, but applicable       409


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  Loc.  ITEM DESCRIPTION & CODES               Counts   HANES I Data Source


          PATHOLOGY FIRST READINGS
          (STANDS 1-100)

 258    Cardiopulmonary findings                        See Detailed Notes

        1 - Findings                             1851
        8 - Blank, but applicable                 383
        9 - No findings                          4679

        Thorax

 259    Kyphosis                                        **See Detailed Notes

        1 - Present                               111
        8 - Blank, but applicable                 153
        9 - No findings                          2795
        Blank                                    3854

 260    Scoliosis

        1 - Present                               560
        8 - Blank, but applicable                 383
        9 - No findings                          5970


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 261    Pectus

        1 - Carinatum                               3
        2 - Excavatum                             145
        8 - Blank, but applicable                 383
        9 - No findings                          6382

 262    Rib fractures

        1 - Present                                69
        8 - Blank, but applicable                 383
        9 - No findings                          6461

 263    Location

        1 - Right rib cage                         34
        2 - Left rib cage                          30
        3 - Both rib cages                          5
        8 - Blank, but applicable                 383
        9 - No findings                          6461

 264-   Minimum rib number right
 265
        01-10 - As given                           37
           88 - Blank, but applicable             385
           99 - No findings                      6491


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  Loc.  ITEM DESCRIPTION & CODES               Counts   HANES I Data Source


 266-   Minimum rib number right
 267
        02-10 - As given                           37
           88 - Blank, but applicable             385
           99 - No findings                      6491

 268-   Minimum rib number left
 269
        03-09 - As given                           33
           88 - Blank, but applicable             385
           99 - No findings                      6495

 270-   Maximum rib number left
 271
        03-11 - As given                           33
           88 - Blank, but applicable             385
           99 - No findings                      6495

 272    Healing status

        1 - Healed                                 59
        8 - Blank, but applicable                 383
        9 - No findings                          6471


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 273    Nipple shadows

        1 - Present                                38
        8 - Blank, but applicable                 383
        9 - No findings                          6492

        Nodules

 274    Other extrapulmonary nodules

        1 - Present                               137
        8 - Blank, but applicable                 383
        9 - No findings                          6393

 275    Intrapulmonary nodules                          See Detailed Notes

        1 - Present                               388
        8 - Blank, but applicable                 383
        9 - No findings                          6142


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 276-   Size of largest (mm)
 278
        001 - 080 - As given                      385
              888 - Blank but applicable          386
              999 - No findings                  6142

 279    Location of largest                             **See Detailed Notes

        1 - Right                                 163
        2 - Left                                  155
        8 - Blank, but applicable                 155
        9 - No findings                          2586
        Blank                                    3854


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  Loc.  ITEM DESCRIPTION & CODES               Counts   HANES I Data Source


 280-   Specific lobe                                   **See Detailed Notes
 281
        Upper     01 - Apical                      33
                  02 - Posterior                   35
                  03 - Anterior                    34
        Middle    04 - Superior or lateral         26
                  05 - Inferior or medial          30
        Lower     06 - Superior                    53
                  07 - Medial                      10
                  08 - Anterior                    18
                  09 - Lateral                     52
                  10 - Posterior                   26
                  88 - Blank, but applicable      156
                  99 - No findings               2586
                  Blank                          3854


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 282    Relative location of largest                    **See Detailed Notes

        1 - Right upper lobe                       10
        2 - Right middle lobe                       5
        3 - Right lower lobe                       18
        4 - Left upper lobe                        13
        5 - Left lower lobe                        12
        8 - Blank, but applicable                 240
        9 - No findings                          3556
        Blank                                    3059

 283-   Size of second largest (mm)
 285
        002-032 - As given                         70
            888 - Blank, but applicable           393
            999 - No findings                    6450


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 286    Location of second largest                      **See Detailed Notes

        1 - Right                                  35
        2 - Left                                   28
        8 - Blank, but applicable                 155
        9 - No findings                          2841
        Blank                                    3854

 287-   Specific lobe                                   **See Detailed Notes
 288
        Upper     01 - Apical                       8
                  02 - Posterior                    4
                  03 - Anterior                    10
        Middle    04 - Superior or lateral          6
                  05 - Inferior or medial           9
        Lower     06 - Superior                     5
                  07 - Medial                       3
                  08 - Anterior                     1
                  09 - Lateral                      8
                  10 - Posterior                    8
                  88 - Blank, but applicable      156
                  99 - No findings               2841
        Blank                                    3854


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 289    Relative location of second largest             *See Detailed Notes

        1 - Right upper lobe                        3
        2 - Right middle lobe                       0
        3 - Right lower lobe                        2
        4 - Left upper lobe                         1
        5 - Left lower lobe                         0
        8 - Blank, but applicable                 239
        9 - No findings                          3609
        Blank                                    3059

 290    Number of nodules

        1 - One                                   308
        2 - Two or more                            80
        8 - Blank, but applicable                 383
        9 - No findings                          6142

 291    Number of segments containing
        nodules

        1-6 - As given                            320
          7 - Greater than 6                        4
          8 - Blank, but applicable               447
          9 - No findings                        6142


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 292    Are segments containing                         See Detailed Notes
        nodules contiguous?

        1 - Yes                                     9
        8 - Blank, but applicable                 425
        9 - No findings                          6479

 293    Etiology of nodules

        1 - Secondary to an infectious
            disease                               286
        2 - Not secondary to an infectious
            disease                                18
        3 - Combination of 1 and 2                  9
        8 - Blank, but applicable                 458
        9 - No findings                          6142


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        Infiltrates

 294    Localized segmental infiltrates                 **See Detailed Notes

        1 - Right                                  11
        2 - Left                                    6
        8 - Blank, but applicable                 153
        9 - No findings                          2889
        Blank                                    3854

 295-   Location of infiltrates:                        **See Detailed Notes
 296    Specific lobe

        Upper     01 - Apical                       0
                  02 - Posterior                    0
                  03 - Anterior                     2
        Middle    04 - Superior or lateral          4
                  05 - Inferior or medial           7
        Lower     06 - Superior                     0
                  07 - Medial                       1
                  08 - Anterior                     0
                  09 - Lateral                      2
                  10 - Posterior                    1
                  88 - Blank, but applicable      153
                  99 - No findings               2889
        Blank                                    3854


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 297    Localized segmental infiltrates                 *See Detailed Notes

        1 - Right upper lobe                        1
        2 - Right middle lobe                      10
        3 - Right lower lobe                        3
        4 - Left upper lobe                         2
        5 - Left lower lobe                         4
        8 - Blank, but applicable                 230
        9 - No findings                          3604
        Blank                                    3059

 298    Diffuse nonsegmental nonhomogenous              **See Detailed Notes
        infiltrates

        1 - Minimal                                44
        2 - Moderate                                4
        3 - Moderate with cavitation               11
        4 - Far advanced                            1
        5 - Far advanced with cavitation            1
        8 - Blank, but applicable                 153
        9 - No findings                          2854
        Blank                                    3854


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 299    Diffuse nonsegmental nonhomogenous              *See Detailed Notes
        infiltrates

        1 - Minimal                                69
        2 - Moderate and Moderate with
            cavitation                             17
        3 - Far advanced and far advanced
            with cavitation                        15
        8 - Blank, but applicable                 230
        9 - No findings                          3523
        Blank                                    3059

 300    Underlying condition

        1 - Granulomatous                         108
        2 - Other diseases                         36
        8 - Blank, but applicable                 401
        9 - No findings                          6368

 301    Diffuse homogeneous
        symmetrical infiltrates

        1 - Present                                92
        8 - Blank, but applicable                 383
        9 - No findings                          6438


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 302    Presumed etiology

        1 - Congestive heart failure               14
        2 - Pneumoconiosis                          2
        3 - Sarcoidosis                             0
        4 - Other                                  75
        8 - Blank, but applicable                 384
        9 - No findings                          6438

 303    Proportion of fraction or PA x-ray
        which appears abnormal

        1- Less than 1/3                           26
        2 - 1/3 to 2/3                             14
        3 - Greater than 2/3                       52
        8 - Blank, but applicable                 383
        9 - No findings                          6438

 304    Other infiltrates

        1 - Present                               108
        8 - Blank, but applicable                 383
        9 - No findings                          6422


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 305    Emphysema

        a) Explicit presumptive diagnosis
           of emphysema

           1 - Diaphragm flat on PA and
               lateral x-rays and presump-
               tive evidence of emphysema         155
           2 - Diaphragm flat on PA x-ray
               and presumptive evidence of
               emphysema                            6
           3 - Diaphragm flat on lateral
               x-ray and presumptive evi-
               dence of emphysema                 170
           4 - Presumptive evidence of
               emphysema                           31

        b) Possible diagnosis of emphysema

           5 - Diaphragm flat on PA and
               lateral x-rays                       9
           6 - Diaphragm flat on PA x-ray           3
           7 - Diaphragm flat on lateral
               x-ray                               96
           8 - Blank, but applicable              383
           9 - Findings                          6060


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 306    Blebs or bullae

        1 - Secondary to generalized
            emphysema                              13
        2 - Secondary to post-inflammatory
            scaring                                 6
        3 - Secondary to both 1 and 2               5
        4 - Independent of both 1 and 2             7
        8 - Blank, but applicable                 383
        9 - No findings                          6499

 307-   Calcified nodes                                 See Detailed Notes
 308
        01 - Right hilar                           39
        02 - Left hilar                            62
        03 - Carinal                                3
        04 - Paratracheal                          23
        05 - Other                                 14
        06 - Right hilar, left hilar, or
             Other                                 10
        07 - Right hilar, paratracheal or
             Other                                 13
        08 - Carinal and paratracheal               6
        09 - Right hilar, left hilar,
             carinal or paratracheal                2
        88 - Blank, but applicable                383
        99 - No findings                         6358


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 309    Enlarged nodes

        1 - Right hilar                             6
        2 - Left hilar                              4
        3 - Carinal                                 0
        4 - Paratracheal                            0
        5 - Other                                   1
        6 - Right and left hilar                    1
        8 - Blank, but applicable                 383
        9 - No findings                          6518

 310    Pleural disease

        1 - Present                               290
        8 - Blank, but applicable                 383
        9 - No findings                          6240

 311    Location

        1 - Right                                  77
        2 - Left                                  124
        3 - Both                                   87
        8 - Blank, but applicable                 385
        9 - No findings                          6240


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 312    Presumed cause of effusion

        1 - Fluid                                   6
        2 - Tissue                                280
        3 - Both                                    3
        8 - Blank, but applicable                 384
        9 - No findings                          6240

        Cardiovascular

        Enlargement of vessels

 313    Azygos vein

        1 - Yes                                    30
        8 - Blank, but applicable                 383
        9 - No findings                          6500


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 314-   Locus of pulmonary artery
 315    enlargement

        01 - Right proximal                         1
        02 - Right distal                           2
        03 - Right proximal/distal                  0
        04 - Left proximal                          2
        05 - Left distal                            0
        06 - Left proximal/distal                   0
        07 - Both proximal                         27
        08 - Both distal                           45
        09 - Both proximal/distal                  98
        88 - Blank, but applicable                383
        99 - No findings                         6355

 316    Enlargement of right heart

        1 - Atrium enlarged                         1
        2 - Ventricle enlarged                     53
        3 - Both enlarged                           5
        8 - Blank, but applicable                 383
        9 - No findings                          6471


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 317    Cephalization of pulmonary vessels

        1 - Present                                32
        8 - Blank, but applicable                 383
        9 - No findings                          6498

 318    Interstitial fluid

        1 - Present                                 6
        8 - Blank, but applicable                 383
        9 - No findings                          6524

 319    Kerley lines

        1 - A lines                                 0
        2 - B lines                                 3
        3 - A and B lines                           5
        8 - Blank, but applicable                 383
        9 - No findings                          6522


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 320    Rosettes

        1 - Present                                 0
        8 - Blank, but applicable                 383
        9 - No findings                          6530

 321    Alveolar fluid

        1 - Present                                 1
        8 - Blank, but applicable                 383
        9 - No findings                          6529

 322    Enlargement of left heart

        1 - Atrium enlarged                         5
        2 - Ventricle enlarged                    119
        3 - Both enlarged                          14
        8 - Blank, but applicable                 383
        9 - No findings                          6392


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          PATHOLOGY SECOND READINGS
          (STANDS 66-100)

 323    Cardiopulmonary findings                        See Detailed Notes

        1 - Findings                             1160
        8 - Blank, but applicable                  90
        9 - No findings                          1809
        Blank                                    3854

        Thorax

 324    Kyphosis                                        **See Detailed Notes

        1 - Present                                66
        8 - Blank, but applicable                  90
        9 - No findings                          2903
        Blank                                    3854

 325    Scoliosis

        1 - Present                                82
        8 - Blank, but applicable                  90
        9 - No findings                          2887
        Blank                                    3854


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 326    Pectus

        1 - Carinatum                               7
        2 - Excavatum                              85
        8 - Blank, but applicable                  90
        9 - No findings                          2877
        Blank                                    3854

 327    Rib fractures

        1 - Present                                57
        8 - Blank, but applicable                  90
        9 - No findings                          2912
        Blank                                    3854

 328    Location

        1 - Right rib cage                         22
        2 - Left rib cage                          31
        3 - Both rib cages                          4
        8 - Blank, but applicable                  90
        9 - No findings                          2912
        Blank                                    3854

 329-   Minimum rib number right
 330
        02-10 - As given                           26
           88 - Blank, but applicable              90
           99 - No findings                      2943
        Blank                                    3854


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 331-   Maximum rib number right
 332
        02-10 - As given                           26
           88 - Blank, but applicable              90
           99 - No findings                      2943
        Blank                                    3854

 333-   Minimum rib number left
 334
        02-11 - As given                           34
           88 - Blank, but applicable              91
           99 - No findings                      2934
        Blank                                    3854

 335-   Maximum rib number left
 336
        03-11 - As given                           34
           88 - Blank, but applicable              91
           99 - No findings                      2934
        Blank                                    3854

 337    Healing status

        1 - Healed                                 44
        8 - Blank, but applicable                  98
        9 - No findings                          2917
        Blank                                    3854


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 338    Nipple shadows

        1 - Present                                55
        8 - Blank, but applicable                  90
        9 - No findings                          2914
        Blank                                    3854

        Nodules

 339    Other extrapulmonary nodules

        1 - Present                                18
        8 - Blank, but applicable                  90
        9 - No findings                          2951
        Blank                                    3854

 340    Intrapulmonary nodules                          See Detailed Notes

        1 - Present                               406
        8 - Blank, but applicable                  90
        9 - No findings                          2563
        Blank                                    3854


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 341-   Size of largest (mm)
 343
        002 - 080 - As given                      405
              888 - Blank but applicable           91
              999 - No findings                  2563
        Blank                                    3854

 344    Location of largest                             **See Detailed Notes

        1 - Right                                 227
        2 - Left                                  176
        8 - Blank, but applicable                  93
        9 - No findings                          2563
        Blank                                    3854


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 345-   Specific lobe                                   **See Detailed Notes
 346
        Upper     01 - Apical                      45
                  02 - Posterior                   54
                  03 - Anterior                    45
        Middle    04 - Superior or lateral         33
                  05 - Inferior or medial          36
        Lower     06 - Superior                    76
                  07 - Medial                       7
                  08 - Anterior                    24
                  09 - Lateral                     42
                  10 - Posterior                   41
                  88 - Blank, but applicable       93
                  99 - No findings               2563
                  Blank                          3854


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 347    Blank                                    6913

 348-   Size of second largest (mm)
 350
        002-035 - As given                        101
            888 - Blank, but applicable            91
            999 - No findings                    2867
        Blank                                    3854

 351    Location of second largest                      **See Detailed Notes

        1 - Right                                  64
        2 - Left                                   37
        8 - Blank, but applicable                  91
        9 - No findings                          2867
        Blank                                    3854


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 352-   Specific lobe                                   **See Detailed Notes
 353
        Upper     01 - Apical                      11
                  02 - Posterior                   11
                  03 - Anterior                    11
        Middle    04 - Superior or lateral         16
                  05 - Inferior or medial          10
        Lower     06 - Superior                    14
                  07 - Medial                       1
                  08 - Anterior                     4
                  09 - Lateral                      9
                  10 - Posterior                   14
                  88 - Blank, but applicable       91
                  99 - No findings               2867
                  Blank                          3854


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 354    Blank                                    6913

 355    Number of nodules

        1 - One                                   303
        2 - Two or more                           102
        8 - Blank, but applicable                  91
        9 - No findings                          2563
        Blank                                    3854

 356    Number of segments containing
        nodules

        1-6 - As given                            390
          7 - Greater than 6                        3
          8 - Blank, but applicable               103
          9 - No findings                        2563
        Blank                                    3854


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 357    Are segments containing                         See Detailed Notes
        nodules contiguous?

        1 - Yes                                    15
        8 - Blank, but applicable                 110
        9 - No findings                          2934
        Blank                                    3854

 358    Etiology of nodules

        1 - Secondary to an infectious
            disease                               361
        2 - Not secondary to an infectious
            disease                                18
        3 - Combination of 1 and 2                  3
        8 - Blank, but applicable                 113
        9 - No findings                          2564
        Blank                                    3854


  Tape                                         Control
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        Infiltrates

 359    Localized segmental infiltrates                 **See Detailed Notes

        1 - Right                                  15
        2 - Left                                   20
        8 - Blank, but applicable                  91
        9 - No findings                          2933
        Blank                                    3854

 360-   Location of infiltrates:                        **See Detailed Notes
 361    Specific lobe

        Upper     01 - Apical                       3
                  02 - Posterior                    0
                  03 - Anterior                     1
        Middle    04 - Superior or lateral          8
                  05 - Inferior or medial           7
        Lower     06 - Superior                     0
                  07 - Medial                       1
                  08 - Anterior                     2
                  09 - Lateral                      6
                  10 - Posterior                    7
                  88 - Blank, but applicable       91
                  99 - No findings               2933
                  Blank                          3854


  Tape                                         Control
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 362    Blank                                    6913

 363    Diffuse nonsegmental nonhomogenous              **See Detailed Notes
        infiltrates

        1 - Minimal                                16
        2 - Moderate                                4
        3 - Moderate with cavitation                4
        4 - Far advanced                            1
        5 - Far advanced with cavitation            1
        8 - Blank, but applicable                  91
        9 - No findings                          2942
        Blank                                    3854

 Tape Locations 364-563
  Tape                                         Control
  Loc.  ITEM DESCRIPTION & CODES               Counts   HANES I Data Source


 364    Blank                                    6913

 365    Underlying condition

        1 - Granulomatous                          19
        2 - Other diseases                          3
        8 - Blank, but applicable                  95
        9 - No findings                          2942
        Blank                                    3854

 366    Diffuse homogeneous
        symmetrical infiltrates

        1 - Present                                74
        8 - Blank, but applicable                  90
        9 - No findings                          2895
        Blank                                    3854


  Tape                                         Control
  Loc.  ITEM DESCRIPTION & CODES               Counts   HANES I Data Source


 367    Presumed etiology

        1 - Congestive heart failure                4
        2 - Pneumoconiosis                          5
        3 - Sarcoidosis                             0
        4 - Other                                  65
        8 - Blank, but applicable                  90
        9 - No findings                          2895
        Blank                                    3854

 368    Proportion or fraction of PA x-ray
        which appears abnormal

        1- Less than 1/3                           40
        2 - 1/3 to 2/3                             27
        3 - Greater than 2/3                        7
        8 - Blank, but applicable                  90
        9 - No findings                          2895
        Blank                                    3854

 369    Other infiltrates

        1 - Present                                22
        8 - Blank, but applicable                  90
        9 - No findings                          2947
        Blank                                    3854


  Tape                                         Control
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 370    Emphysema

        a) Explicit presumptive diagnosis
           of emphysema

           1 - Diaphragm flat on PA and
               lateral x-rays and presump-
               tive evidence of emphysema          66
           2 - Diaphragm flat on PA x-ray
               and presumptive evidence of
               emphysema                            3
           3 - Diaphragm flat on lateral
               x-ray and presumptive evi-
               dence of emphysema                 106
           4 - Presumptive evidence of
               emphysema                           23

        b) Possible diagnosis of emphysema

           5 - Diaphragm flat on PA and
               lateral x-rays                      15
           6 - Diaphragm flat on PA x-ray          10
           7 - Diaphragm flat on lateral
               x-ray                               96
           8 - Blank, but applicable               90
           9 - Findings                          2650
        Blank                                    3854


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 371    Blebs or bullae

        1 - Secondary to generalized
            emphysema                              17
        2 - Secondary to post-inflammatory
            scaring                                 1
        3 - Secondary to both 1 and 2               4
        4 - Independent of both 1 and 2             0
        8 - Blank, but applicable                  90
        9 - No findings                          2947
        Blank                                    3854

 372-   Calcified nodes                                 See Detailed Notes
 373
        01 - Right hilar                           64
        02 - Left hilar                            64
        03 - Carinal                                6
        04 - Paratracheal                          17
        05 - Other                                  0
        06 - Right hilar, left hilar, or
             Other                                 20
        07 - Right hilar, paratracheal or
             Other                                 17
        08 - Carinal and paratracheal               3
        09 - Right hilar, left hilar,
             carinal or paratracheal                1
        88 - Blank, but applicable                 90
        99 - No findings                         2777
        Blank                                    3854


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 374    Enlarged nodes

        1 - Right hilar                             3
        2 - Left hilar                              1
        3 - Carinal                                 1
        4 - Paratracheal                            0
        5 - Other                                   0
        6 - Right and left hilar                    4
        8 - Blank, but applicable                  90
        9 - No findings                          2960
        Blank                                    3854

 375    Pleural disease

        1 - Present                                99
        8 - Blank, but applicable                  90
        9 - No findings                          2870
        Blank                                    3854

 376    Location

        1 - Right                                  30
        2 - Left                                   38
        3 - Both                                   26
        8 - Blank, but applicable                  95
        9 - No findings                          2870
        Blank                                    3854


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 377    Presumed cause of effusion

        1 - Fluid                                   5
        2 - Tissue                                 85
        3 - Both                                    4
        8 - Blank, but applicable                  95
        9 - No findings                          2870
        Blank                                    3854

        Cardiovascular

        Enlargement of vessels

 378    Azygos vein

        1 - Yes                                     5
        8 - Blank, but applicable                  90
        9 - No findings                          2964
        Blank                                    3854


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 379-   Locus of pulmonary artery
 380    enlargement

        01 - Right proximal                         0
        02 - Right distal                           0
        03 - Right proximal/distal                  0
        04 - Left proximal                          2
        05 - Left distal                            0
        06 - Left proximal/distal                   0
        07 - Both proximal                         25
        08 - Both distal                            8
        09 - Both proximal/distal                   7
        88 - Blank, but applicable                 90
        99 - No findings                         2927
        Blank                                    3854

 381    Enlargement of right heart

        1 - Atrium enlarged                         0
        2 - Ventricle enlarged                     17
        3 - Both enlarged                           0
        8 - Blank, but applicable                  90
        9 - No findings                          2952
        Blank                                    3854


  Tape                                         Control
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 382    Cephalization of pulmonary vessels

        1 - Present                                24
        8 - Blank, but applicable                  90
        9 - No findings                          2945
        Blank                                    3854

 383    Interstitial fluid

        1 - Present                                 9
        8 - Blank, but applicable                  90
        9 - No findings                          2960
        Blank                                    3854

 384    Kerley lines

        1 - A lines                                 0
        2 - B lines                                 0
        3 - A and B lines                           6
        8 - Blank, but applicable                  90
        9 - No findings                          2963
        Blank                                    3854


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 385    Rosettes

        1 - Present                                 3
        8 - Blank, but applicable                  90
        9 - No findings                          2966
        Blank                                    3854

 386    Alveolar fluid

        1 - Present                                 1
        8 - Blank, but applicable                  90
        9 - No findings                          2968
        Blank                                    3854

 387    Enlargement of left heart

        1 - Atrium enlarged                         4
        2 - Ventricle enlarged                     96
        3 - Both enlarged                           4
        8 - Blank, but applicable                  90
        9 - No findings                          2865
        Blank                                    3854


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          PATHOLOGY FINAL READINGS                      See Detailed Notes
          (STANDS 1-100)

 388    Cardiopulmonary findings                        See Detailed Notes

        1 - Findings                             1713
        8 - Blank, but applicable                 319
        9 - No findings                          4881

        Thorax

 389    Kyphosis                                        **See Detailed Notes

        1 - Present                               100
        8 - Blank, but applicable                  89
        9 - No findings                          2870   Blank
        Blank                                    3854

 390    Scoliosis

        1 - Present                               533
        8 - Blank, but applicable                 319
        9 - No findings                          6061


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 391    Pectus

        1 - Carinatum                               3
        2 - Excavatum                             111
        8 - Blank, but applicable                 319
        9 - No findings                          6480

 392    Rib fractures

        1 - Present                                76
        8 - Blank, but applicable                 319
        9 - No findings                          6518

 393    Location

        1 - Right rib cage                         34
        2 - Left rib cage                          33
        3 - Both rib cages                          9
        8 - Blank, but applicable                 319
        9 - No findings                          6518

 394-   Minimum rib number right
 395
        01-10 - As given                           41
           88 - Blank, but applicable             321
           99 - No findings                      6551


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 396-   Maximum rib number right
 397
        02-10 - As given                           41
           88 - Blank, but applicable             321
           99 - No findings                      6551

 398-   Minimum rib number left
 399
        02-10 - As given                           41
           88 - Blank, but applicable             321
           99 - No findings                      6551

 400-   Maximum rib number left
 401
        04-11 - As given                           41
           88 - Blank, but applicable             321
           99 - No findings                      6551

 402    Healing status

        1 - Healed                                 68
        8 - Blank, but applicable                 322
        9 - No findings                          6523


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 403    Nipple shadows

        1 - Present                                53
        8 - Blank, but applicable                 319
        9 - No findings                          6541

        Nodules

 404    Other extrapulmonary nodules

        1 - Present                               139
        8 - Blank, but applicable                 319
        9 - No findings                          6455

 405    Intrapulmonary nodules                          See Detailed Notes

        1 - Present                               429
        8 - Blank, but applicable                 319
        9 - No findings                          6165


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 406-   Size of largest (mm)
 408
        002 - 080 - As given                      423
              888 - Blank but applicable          322
              999 - No findings                  6168

 409    Location of largest                             **See Detailed Notes

        1 - Right                                 191
        2 - Left                                  166
        8 - Blank, but applicable                  90
        9 - No findings                          2612
        Blank                                    3854


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 410-   Specific lobe                                   **See Detailed Notes
 411
        Upper     01 - Apical                      39
                  02 - Posterior                   39
                  03 - Anterior                    45
        Middle    04 - Superior or lateral         37
                  05 - Inferior or medial          30
        Lower     06 - Superior                    53
                  07 - Medial                      15
                  08 - Anterior                    10
                  09 - Lateral                     57
                  10 - Posterior                   32
                  88 - Blank, but applicable       90
                  99 - No findings               2612
                  Blank                          3854


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 412    Relative location of largest                    **See Detailed Notes

        1 - Right upper lobe                       10
        2 - Right middle lobe                       5
        3 - Right lower lobe                       18
        4 - Left upper lobe                        13
        5 - Left lower lobe                        12
        8 - Blank, but applicable                 240
        9 - No findings                          3556
        Blank                                    3059

 413-   Size of second largest (mm)
 415
        002-032 - As given                         92
            888 - Blank, but applicable           328
            999 - No findings                    6493


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 416    Location of second largest                      **See Detailed Notes

        1 - Right                                  47
        2 - Left                                   38
        8 - Blank, but applicable                  90
        9 - No findings                          2884
        Blank                                    3854

 417-   Specific lobe                                   **See Detailed Notes
 418
        Upper     01 - Apical                      11
                  02 - Posterior                   11
                  03 - Anterior                    11
        Middle    04 - Superior or lateral          9
                  05 - Inferior or medial           9
        Lower     06 - Superior                     8
                  07 - Medial                       2
                  08 - Anterior                     6
                  09 - Lateral                      9
                  10 - Posterior                    9
                  88 - Blank, but applicable       90
                  99 - No findings               2884
        Blank                                    3854


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 419    Relative location of second largest             *See Detailed Notes

        1 - Right upper lobe                        3
        2 - Right middle lobe                       0
        3 - Right lower lobe                        2
        4 - Left upper lobe                         1
        5 - Left lower lobe                         0
        8 - Blank, but applicable                 239
        9 - No findings                          3609
        Blank                                    3059

 420    Number of nodules

        1 - One                                   326
        2 - Two or more                           101
        8 - Blank, but applicable                 319
        9 - No findings                          6167

 421    Number of segments containing
        nodules

        1-6 - As given                            381
          7 - Greater than 6                        5
          8 - Blank, but applicable               360
          9 - No findings                        6167


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 422    Are segments containing                         See Detailed Notes
        nodules contiguous?

        1 - Yes                                    17
        8 - Blank, but applicable                 364
        9 - No findings                          6532

 423    Etiology of nodules

        1 - Secondary to an infectious
            disease                               336
        2 - Not secondary to an infectious
            disease                                 7
        3 - Combination of 1 and 2                 10
        8 - Blank, but applicable                 393
        9 - No findings                          6167


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        Infiltrates

 424    Localized segmental infiltrates                 **See Detailed Notes

        1 - Right                                  15
        2 - Left                                    9
        8 - Blank, but applicable                  89
        9 - No findings                          2946
        Blank                                    3854

 425-   Location of infiltrates:                        **See Detailed Notes
 426    Specific lobe

        Upper     01 - Apical                       1
                  02 - Posterior                    0
                  03 - Anterior                     2
        Middle    04 - Superior or lateral          6
                  05 - Inferior or medial           9
        Lower     06 - Superior                     1
                  07 - Medial                       1
                  08 - Anterior                     0
                  09 - Lateral                      3
                  10 - Posterior                    2
                  88 - Blank, but applicable       89
                  99 - No findings               2945
        Blank                                    3854


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 427    Localized segmental infiltrates                 *See Detailed Notes

        1 - Right upper lobe                        1
        2 - Right middle lobe                      10
        3 - Right lower lobe                        3
        4 - Left upper lobe                         2
        5 - Left lower lobe                         4
        8 - Blank, but applicable                 230
        9 - No findings                          3604
        Blank                                    3059

 428    Diffuse nonsegmental nonhomogeneous             **See Detailed Notes
        infiltrates

        1 - Minimal                                40
        2 - Moderate                                6
        3 - Moderate with cavitation                7
        4 - Far advanced                            0
        5 - Far advanced with cavitation            0
        8 - Blank, but applicable                  89
        9 - No findings                          2917
        Blank                                    3854


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 429    Diffuse nonsegmental nonhomogeneous             *See Detailed Notes
        infiltrates

        1 - Minimal                                69
        2 - Moderate and Moderate with
            cavitation                             17
        3 - Far advanced and far advanced
            with cavitation                        15
        8 - Blank, but applicable                 230
        9 - No findings                          3523
        Blank                                    3059

 430    Underlying condition

        1 - Granulomatous                         104
        2 - Other diseases                         34
        8 - Blank, but applicable                 335
        9 - No findings                          6440

 431    Diffuse homogeneous
        symmetrical infiltrates

        1 - Present                                99
        8 - Blank, but applicable                 319
        9 - No findings                          6495


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 432    Presumed etiology

        1 - Congestive heart failure               13
        2 - Pneumoconiosis                          2
        3 - Sarcoidosis                             0
        4 - Other                                  84
        8 - Blank, but applicable                 319
        9 - No findings                          6495

 433    Proportion or fraction of PA x-ray
        which appears abnormal

        1- Less than 1/3                           28
        2 - 1/3 to 2/3                             17
        3 - Greater than 2/3                       54
        8 - Blank, but applicable                 319
        9 - No findings                          6495

 434    Other infiltrates

        1 - Present                               108
        8 - Blank, but applicable                 319
        9 - No findings                          6486


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 435    Emphysema

        a) Explicit presumptive diagnosis
           of emphysema

           1 - Diaphragm flat on PA and
               lateral x-rays and presump-
               tive evidence of emphysema         136
           2 - Diaphragm flat on PA x-ray
               and presumptive evidence of
               emphysema                            5
           3 - Diaphragm flat on lateral
               x-ray and presumptive evi-
               dence of emphysema                  93
           4 - Presumptive evidence of
               emphysema                           29

        b) Possible diagnosis of emphysema

           5 - Diaphragm flat on PA and
               lateral x-rays                      14
           6 - Diaphragm flat on PA x-ray           4
           7 - Diaphragm flat on lateral
               x-ray                              115
           8 - Blank, but applicable              319
           9 - No Findings                       6198


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 436    Blebs or bullae

        1 - Secondary to generalized
            emphysema                              13
        2 - Secondary to post-inflammatory
            scaring                                 8
        3 - Secondary to both 1 and 2               8
        4 - Independent of both 1 and 2             6
        8 - Blank, but applicable                 319
        9 - No findings                          6559

 437-   Calcified nodes                                 See Detailed Notes
 438
        01 - Right hilar                           54
        02 - Left hilar                            71
        03 - Carinal                                4
        04 - Paratracheal                          21
        05 - Other                                 10
        06 - Right hilar, left hilar, or
             Other                                 16
        07 - Right hilar, paratracheal or
             Other                                 12
        08 - Carinal and paratracheal               2
        09 - Right hilar, left hilar,
             carinal or paratracheal                8
        88 - Blank, but applicable                319
        99 - No findings                         6396


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 439    Enlarged nodes

        1 - Right hilar                            10
        2 - Left hilar                              2
        3 - Carinal                                 1
        4 - Paratracheal                            0
        5 - Other                                   1
        6 - Right and left hilar                    3
        8 - Blank, but applicable                 319
        9 - No findings                          6577

 440    Pleural disease

        1 - Present                               278
        8 - Blank, but applicable                 319
        9 - No findings                          6316

 441    Location

        1 - Right                                  76
        2 - Left                                  119
        3 - Both                                   82
        8 - Blank, but applicable                 320
        9 - No findings                          6316


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 442    Presumed cause of effusion

        1 - Fluid                                   8
        2 - Tissue                                261
        3 - Both                                    8
        8 - Blank, but applicable                 320
        9 - No findings                          6316

        Cardiovascular

        Enlargement of vessels

 443    Azygos vein

        1 - Yes                                    30
        8 - Blank, but applicable                 319
        9 - No findings                          6564


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 444-   Locus of pulmonary artery
 445    enlargement

        01 - Right proximal                         1
        02 - Right distal                           1
        03 - Right proximal/distal                  0
        04 - Left proximal                          1
        05 - Left distal                            0
        06 - Left proximal/distal                   0
        07 - Both proximal                         30
        08 - Both distal                           19
        09 - Both proximal/distal                  90
        88 - Blank, but applicable                319
        99 - No findings                         6452

 446    Enlargement of right heart

        1 - Atrium enlarged                         1
        2 - Ventricle enlarged                     40
        3 - Both enlarged                           3
        8 - Blank, but applicable                 319
        9 - No findings                          6550


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 447    Cephalization of pulmonary vessels

        1 - Present                                36
        8 - Blank, but applicable                 319
        9 - No findings                          6558

 448    Interstitial fluid

        1 - Present                                 6
        8 - Blank, but applicable                 319
        9 - No findings                          6588

 449    Kerley lines

        1 - A lines                                 0
        2 - B lines                                 3
        3 - A and B lines                           7
        8 - Blank, but applicable                 319
        9 - No findings                          6584


  Tape                                         Control
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 450    Rosettes

        1 - Present                                 1
        8 - Blank, but applicable                 319
        9 - No findings                          6593

 451    Alveolar fluid

        1 - Present                                 1
        8 - Blank, but applicable                 319
        9 - No findings                          6593

 452    Enlargement of left heart

        1 - Atrium enlarged                         5
        2 - Ventricle enlarged                    120
        3 - Both enlarged                          10
        8 - Blank, but applicable                 319
        9 - No findings                          6459

 453-   Data User Work Area
 500


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          PULMONARY DIFFUSION (STANDS 1-100)

 501-   DLCO (m1CO/minute) - First Trial                See Detailed Notes
 503
        (XX.X - decimal not shown on tape)
        092-711 - As given                       4864
            000 - Unacceptable trials             190
        Blank   - Blank, but applicable          1859

 504-   DLCO (m1CO/minute) - Second Trial               See Detailed Notes
 506
        (XX.X - decimal not shown on tape)
        092-589 - As given                       4978
            000 - Unacceptable trials              76
        Blank   - Blank, but applicable          1859

 507-   DLCO (m1CO/minute) - Third Trial                See Detailed Note
 509
        (XX.X - decimal not shown on tape)
        003-597 - As given                       4916
            000 - Unacceptable trials             138
        Blank   - Blank, but applicable          1859


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 510-   Summary DLCO (m1CO/minute)                      See Detailed Note
 512
        (XX.X - decimal not shown on tape)
        092-561 - As given                       5054
        Blank   - Blank, but applicable          1859

 513-   Data User Work Area
 550


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          TUBERCULIN TEST (STANDS 1-35)                 See Detailed Notes

 551    Site injected

        1     - Volar forearm                    1575
        2     - Other                               4
        8     - Blank, but applicable             312
        Blank - Not applicable                   5022

 552-   PPD-S Induration (mm) (left arm)
 553
        00-69 - As given                         1494
           88 - Blank, but applicable             397
        Blank - Not applicable                   5022

 554-   PPD-B Induration (mm) (right arm)
 555
        00-75 - As given                         1493
           88 - Blank, but applicable             398
        Blank - Not applicable                   5022


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 556    Where were results read?

        1     - Home                              141
        2     - Work                               35
        3     - Exam center                      1256
        4     - Other                              43
        8     - Blank, but applicable             416
        Blank - Not applicable                   5022

 557    Days between test and reading

        2-4   - As given                         1461
          8   - Blank, but applicable             430
        Blank - Not applicable                   5022


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 558    Type of reader

        1     - Nurse                            1367
        2     - Health Examination
                Representative                     67
        3     - Doctor outside of exam center      31
        4     - Exam center staff doctor            9
        5     - Examinee                            1
        6     - Public Health Nurse                 1
        7     - Coordinator                         1
        8     - R.N. outside of exam center       412
        9     - Blank, but applicable               2
        Blank - Not applicable                   5022

 559    Was test read?

        1     - Test read                        1494
        2     - Test administered, not read        98
        3     - Test administered, read
                negative by examinee                1
        8     - Blank, but applicable             298
        Blank - Not applicable                   5022


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 560-   PPD-S and PPD-B both present:
 562    difference in readings

        (-71)-(+59) (mm) - As given              1494
        Blank            - Not applicable        5421

 563    Induration reading classification:
        PPD-S and PPD-B

        1     - Both absent                       396
        2     - S absent, B present                 1
        3     - S present, B absent                 2
        4     - S and B present with S
                induration
                05-09 mm and -1   S-B   +1         40
        5     - S and B present with S
                induration
                05-09 mm and S-B     -1            32
        6     - S and B present with S
                induration
                05-09 mm and S-B     +1            88
        7     - S and B present with S
                induration 10-69 mm               282
        8     - S and B present with S
                induration 00-04 mm              1050
        Blank - Not applicable                   5022


DETAILED NOTES, TB DATA

 Tape Positions 205-237 - Lung Measurement Techniques
 
 Surface areas of lungs - The technique used to measure lung surface areas
 was that described by Harris et al in the American Journal of Medicine
 50:756-763 1971.The technician first traced with a pencil on the
 posterior-anterior (PA) and lateral films:  1) the left lung perimeter 2)
 the right lung perimeter,excluding the heart and mediastinal shadows,and
 3) the lateral lung perimeter, using the posterior margins of the
 vertebrae,
    the internal sternal margin and the line midway between the diaphragms.
 The technician then again traced the lung perimeters using the magnifying
 tracer of the planimeter.  This data was interpreted by a Numonics model
 1224 electronic digitizer, and areas were read and recorded from the
 display console.

 Thoracic diameters -- The PA diameter, given in centimeters, was the
 maximum transverse diameter of the chest on the PA film, as measured by
 the Numonics digitizer.The first and second lateral diameters were the
 least distance in centimeters from the superior and inferior posterior
 margins of the eighth thoracic vertebrae to the posterior margin of the
 sternum, respectively.  Measurements were made with the Numonics
 digitizer.Thoracic diameters were not measured for examinees in the
 Augmentation Survey.

 Tracheal diameters - Tracheal diameters were measured at the levels of the
 superior borders of the second (T2) and the third (T3) thoracic vertebrae.
 Measurements were made with a straight edge and a square.  Using a
 straight edge, the tracheal borders at the levels of T2 and T3 were
 marked.  These lines were extended so as to best parallel their respective
 tracheal walls.A perpendicular to the right tracheal border was
 established with a square at the superior border of T2 and T3.
 Measurement of the distance between tracheal walls was measured along this
 perpendicular with a Fowler caliper,and readings were recorded to the
 nearest hundredth of a centimeter.  Tracheal diameters were not measured
 for examinees in the Augmentation Survey.

 Tape Positions 238-257 - Heart Size Measurement Techniques
 
 Five measures of heart size were taken for each examinee in order to
 assess cardiac pathology and heart enlargement, using techniques suggested
 by Grover et al in Circulation, Volume XLVII, June 1973.  As described in
 the article, the technician used a straight edge and pencil to establish a
 transverse line horizontally across the posterior-anterior (PA) x-ray
 between the pair of ribs (left and right) which defined the maximum
 intra-thoracic diameter.  The distance between the internal margins of
 these sites,B1 and B2,defined the maximum transverse diameter of the
 thorax. A second line was drawn perpendicular to the first line, bisecting
 the chest into left and right halves.  The technician then identified the
 points, one on the left and one on the right, which marked the most
 lateral cardiac margins.  Another perpendicular was drawn from each of
 these points to the transverse thoracic line.  The distance between point
 A1 (where the perpendicular from the left cardiac border intersected the
 transverse line) and the point A2 (where the perpendicular from the right
 cardiac border intersected the transverse thoracic line) was measured and
 recorded.This distance,A1 to A2,defined the maximum cardiac diameter on
 the PA film.The technician then marked the point that identified the
 junction of the right atrium and the superior vena cava, C1 and the point
 that marked the cardiac apex, C2.The distance between these two points was
 measured and recorded.The right cardio-phrenic angle,D1, was then
 identified,as well as the junction of the atrial appendage with the main
 pulmonary artery, D2.This distance, representing the cardiac broad
 diameter, was measured and recorded.  The technician then marked a
 horizon- tal line on the lateral chest x-ray which transected the heart at
 its widest diameter.The points where the line intersected the anterior and
 posterior cardiac shadow were identified,and this distance was measured
 and recorded as the greatest cardiac diameter on the lateral film, E1 to
 E2.

 Tape Positions 258-322, 323-387, 388-452-Cardiopulmonary Findings
 
 In order to be able to determine the presence or absence of
 cardiopulmonary findings, a recording form was developed by the principle
 contract x-ray reader and the NHANES medical advisor. Since structural
 abnormalities can directly or indirectly influence pulmonary mechanics,
 the forms were expanded to include the presence of scoliosis, kyphosis,
 pectus, and rib fractures.  The forms were structured to permit:

 1) grouping of abnormalities by location or system - e.g., chest wall,
    pulmonary, lymphatic, pleural, and cardiovascular,
 2) assessing the extent of the abnormalities (e.g., size and number of
    nodules) and distribution (e.g., segmental and nonsegmental
    infiltrates) of the disease,
 3) suggesting etiologies (e.g., infections as the cause of nodules;
    pneumonoconiosis as the cause of pulmonary infiltrates) when sufficient
    information was available from the x-ray, and
 4) recording into "open" recording space those observations and
    abnormalities which did not otherwise fit into the coded form.

 The assessment as to whether the nonsegmental nonhomogenous infiltrates
 were minimal, moderate or advanced was made according to the Diagnostic
 Standards and Classification of Tuberculosis (National Tuberculosis and
 Respiratory Disease Association, New York, NY 1969).  Objective criteria
 concerning the other findings to be assessed were not available at the
 time the form was designed.

 The final report of the contractor responsible for making all heart size
 and lung measurements and all assessments for cardiopulmonary pathology is
 available to interested parties.  In addition, a portion of that final
 report has been excerpted and is included as Appendix I to this document.
 In the excerpted portion,the contractor has provided assessments of the
 validity and usefulness of each of the individual pathology findings
 presented in this data set, as well as descriptions of problems
 encountered in the reading and evaluation process.Users of this data set
 are advised to review the excerpt prior to conducting any analyses of
 these data.

 Tape Positions 259, 324, and 389 - Kyphosis
 
 Findings related to kyphosis were not formally recorded for subjects who
 received the detailed examination during that part of NHANES I conducted
 from 1971 to 1974.Consequently, no response is coded for those 3854
 subjects.  For some of those subjects an observation of kyphosis was
 recorded in the "Comments" section of the coding form, but the
 observations were not consistently recorded. In addition, a number of
 subjects did not receive a lateral x-ray, and for these examinees the
 assessment of kyphosis was not reliable.

 Tape Positions 274-293, 339-358, 404-423 - Nodules
 
 Review of the coding form used for the part of NHANES I conducted in
 1971-74 prompted a revision of the section relating to nodules prior to
 the Augmentation Survey conducted in 1974-75.  In particular, the lung(s)
 and specific lobe(s) of the lung(s) in which the largest and second
 largest nodules were located are only coded for subjects examined in the
 Augmentation Survey. The relative location(s) of the largest and second
 largest nodules are only coded for subjects examined in 1971-74.The coding
 schema are approximately equivalent, except that the schema used for the
 subjects of the Augmentation Survey provides substantially more detail
 than that used for the examinees  receiving the detailed examination in
 1971-74.

 Tape Positions 294-304, 359-369, 424-434 - Infiltrates
 
 Review of the coding form used for the part of NHANES I conducted in
 1971-74 prompted a revision of the section relating to infiltrates prior
 to the Augmentation Survey conducted in 1974-75.In particular,more
 detailed coding schema were developed for the specific lobe in which
 localized segmental infiltrates were located, and for the severity of
 diffuse nonsegmental nonhomogenous infiltrates.  In each case the less
 specific schema can be derived by combining adjacent categories of the
 more specific schema.

 Tape Positions 388-452 - Pathology Final Readings
 
 Reader opinion represents a useful assessment of radiographic
 abnormalities.  For example, Nicklaus et al (American Review of
 Respiratory Disease 93:  889-899, 1966) have shown that reader opinion is
 the best way to diagnose moderate to severe emphysema from the chest x-ray
 and that it correlates well with histologic findings.Hence, the present
 study utilized reader opinion to assess the presence or absence of heart
 and lung pathology.  Because such opinion has been shown to have
 appreciable inter-observer and intra-observer error, two independent
 readers were utilized to establish the presence or absence of pathology.

 The pathology final readings do not represent a third reading of each
 x-ray, but instead a synthesis of the first two readings.  The x-rays of
 those subjects examined in 1971-74 (the General Nutrition examination)
 were only read once,so that for those examinees the final reading is
 simply a copy of the first reading.  The x-rays of those subjects examined
 in the Augmentation Survey (conducted in 1971-74) were read twice by
 independent readers.When the findings of the two readers agreed, the final
 reading is a copy of those findings.  When the readers disagreed in any
 particular, the film was subjected to adjudication,in which the readers
 jointly reviewed the film and came to agreement on the disputed item(s).In
 a few cases,disputed films were referred to a third expert reader for
 adjudication.

 In this study, Dr. Lanie Eagleton, Associate Professor of Medicine and
 Chief of the Pulmonary Division of the Southern Illinois University School
 of Medicine, performed all the first readings.The "second" reader was one
 of four radiology residents at the Southern Illinois School of
 Medicine.Expert judgment on disputed films was provided by Dr. William
 Sherrick, a staff radiologist at the Southern Illinois School of Medicine
 specializing in chest radiology.

 Tape Positions 501-532 - Pulmonary Diffusion
 
 Measurements of single breath carbon monoxide diffusion capacity were per-
 formed on all detailed examinees using a Collins modular lung analyzer.
 This machine provides basic data from which estimates can be made of the
 rate of diffusion of gases across the pulmonary membranes.

 Each examinee who the physician did not disqualify performed first a
 Forced Expiratory Spirogram to establish his forced vital capacity and
 then three trials on the lung analyzer.  Each trial consisted of:  1) a
 maximal inspiration of a gas mixture containing air,10 percent helium
 (He), and 0.3 percent carbon monoxide (CO), followed by 2) breathholding
 for about 10 seconds, and finally 3) as complete and rapid an expiration
 as the examinee could perform.  The expired gas was analyzed for the
 proportions of expired He and CO. Trials were separated by rest periods of
 at least five minutes.

 Each trial and the entire test was subjected to a variety of quality
 control criteria, including:

   1)  Inspired volumes must be at least 80 percent of forced vital
       capacity.
   2)  Inspiration times must be less than three seconds.
   3)  Breathholding times must be between 8.5 and 11.5 seconds.
   4)  Expired gas samples must be at least 500 ml.
   5)  The volumes of inspired gas must not decrease more than 200 ml during
       breathholding.
   6)  The trials must be free of inhalation artifacts.
   7)  Expired CO and He measurements must not differ by more than 10 percent.

 Calculations of pulmonary diffusion capacity (DLCO) were performed at the
 end of the survey for all trials that were free of quality control
 violations, using the following formula:

 DLCO = (IVC * HEI / HEE - Weight in pounds - 75) * STPD factor *
        (192 / Breathholding time) * (1 / (BP - 47))*
        In ((COI / COE) * (HEI / HEE))

 where:
        IVC = Inspired vital capacity
        HEI, HEE = Inspired and expired helium concentration
        STPD = Standard Temperature and Pressure correction factor
        BP = Uncorrected barometric pressure
        COI, COE = Inspired and expired carbon monoxide concentration

 A summary DLCO was also derived.  The summary was the average of all
 DLCO's that were within 10 percent of the largest, or the largest alone if
 reproducibility had not been demonstrated or if only one trial was
 available.

 Tape Positions 551-563 - Tuberculin Test
 
 Each adult ages 25-74 years selected in the sample for the more detailed
 examination was given a tuberculin skin test as part of the examination
 component relating to respiratory conditions.Due to the difficulty in
 getting the examinees to return to the examining center 48-72 hours after
 receiving their tuberculin tests for reading, tuberculin tests were only
 to sample persons in stands 1-35.  Examinees who had a history of a
 positive reaction, tuberculosis, Isoniazid prophylaxis or who were
 examined a day or two before the mobile examination unit was scheduled to
 move were not given the tubercu- lin skin tests.

 Simultaneous skin testing with PPD-S tuberculin antigen and PPD-B antigen
 permitted differentiation between reactivity caused by infection with M.
 tuberculosis and the other mycobacteria.  Trained staff nurses
 administered 5 tuberculin units contained in 0.1 cc solution into the left
 arm and 5 units of PPD-B in 0.1 cc solution into the right arm.Both
 antigens used in the survey examinations were obtained from the
 Tuberculosis Program of the Centers for Disease Control, Public Health
 Service.The tuberculin skin tests were read 48-72 hours after injection.
 The indurated area was measured to the nearest millimeter at its widest
 transverse diameter.

 Further description of the tuberculin tests may be found in "Tuberculin
 Skin Test Reaction Among Adults 25-74 Years1".


 1National Center for Health Statistics, A. Engel and J. Roberts:
  Tuberculin Skin Test Reaction Among Adults 25-74 Years, by Vital and
  Health Statistics.  Series 11-No. 204.  DHEW Pub. No. (HRA) 77-1649.
  Public Health Service.  Hyattsville, Md. July, 1977.

 Quality Control

 When the reading and evaluation of the x-rays in this data set was
 initiated, objective criteria did not exist to assess the presence or
 absence or degree of significance for many of the fields reported in the
 section relating to cardiopulmonary pathology. After review of this data
 set by staff members of the National Center for Health Statistics,and in
 light of the comments raised by the primary contract reader, several
 studies were initiated to validate selected items from the data set.Cobb's
 angles were measured for all subjects with a positive findings for
 scoliosis (see Carter, O.D., and Haynes, S.G.:  Prevalence rates and risk
 factors for scoliosis in U.S. adults: Results from the First National
 Health and Nutrition Examination Survey (NHASES I). In Preparation).  The
 right descending pulmonary artery was measured for all subject with a
 positive finding for pulmonary artery enlargement (as well as for a sample
 of subjects who did not have positive findings) by an acknow- ledged
 expert in that condition,and the results are currently being anlayzed to
 determine proportion of false positives and negatives.Finally, all x-rays
 reported to show some pleural disease have been re-read by an expert in
 that condition, and these data are also currently being analyzed.

 Users may wish to consider conducting validation studies of their own
 prior to pursuing specific analyses.Under certain restricted
 circumstances, it is possible to obtain from NCHS selected subsets of
 x-rays from the original data set to conduct such studies.Contact Terence
 Drizd or Dr.Suzanne Haynes of the Medical Statistics Branch, Division of
 Health Examination Statistics, NCHS for more information.


APPENDIX I: EXCERPT FROM FINAL REPORT OF CONTRACT X-RAY READER

 Kyphosis, a subjective evaluation, was a source of disagreement between
 readers.  The data should not be used as free standing prevalence data.
 However,the adjudicated data should prove useful for comparison with and
 for assessment of other pulmonary data, e.g., spirometry and physical
 examina- tion data.

 Scoliosis was a frequent finding.  Most of the differences of opinion as
 to the presence or absence of scoliosis occurred when there were small
 angula- tions which had not been recorded by one of the readers.The data
 should be further refined by having the angles of the scoliosis measured
 so that the data become quantitative as well as qualitative.This data is
 of good quality as a source of prevalence estimates as well as a source of
 comparison with spirometric abnormalities.

 Pectus excavatum, a subjective evaluation, was a source of substantial
 disagreement between readers. Since this abnormality has been linked to
 diaphragmatic abnormalities,it is an important finding to compare with the
 other data, e.g., spirometry and physical examination findings.It should
 not be used as a source of prevalence estimates for pectus excavatum.

 Nodules were the most common abnormality.  They were divided into those
 the reader believed were:
     1)  nipple shadows,
     2)  extra-pulmonary densities,
     3)  radio-dense or calcified lesion judged to be secondary to a remote
         granulatomous infection, such as a fungal infection, a viral
         infec- tion, or tuberculosis, and
     4)  "other" nodules which had a reasonably high probability of
         represen- ting a neoplasm, a tumor of non-infectious etiology,or
         an infectious disease which had been recently acquired.

 The nipple shadows and the extra-pulmonary nodules were recorded because
 they were potential sources of error in identification of pulmonary
 nodules. This recording was helpful in editing and adjudicating. It should
 not be used for prevalence estimates and was not meant for correlation
 with the other pulmonary data.

 The sizes of the intrapulmonary nodules were recorded in millimeters. The
 nodules were frequently asymmetrical.  The measurement instructions were
 not explicit as to how to measure an asymmetric nodule.  Hence, the two
 readings were frequently different by a few millimeters - usually no more
 than two.  However, this small difference in reading resulted in the
 x-rays being re- called for adjudication.The difference was resolved by
 reader #1 remeasuring the nodules and adjudicating the reading to the
 maximal diameter of the nodule. This consumed a large amount of time.
 However,the final data on the prevalence and the size of the nodule is
 good data for publication.  The enumeration of the nodules presented
 problems,particularly when the densities near the hilum could be
 interpreted as either a vessel or a nodule.When there was a difference of
 opinion as to whether a nodule was present or absent,the lesions were
 adjudicated as not present.  The data on the number of nodules present
 should prove useful for assessing the extent of the inflammatory process
 in the lung.

 The coding of the abnormalities by utilizing the smallest lung divisions
 which were likely to encompass the lesion, (e.g., a segment of the lung)
 presented a problem with adjudication.  Precise anatomical location is
 difficult to establish from x-rays even when both posterior-anterior and
 lateral films are available.  Furthermore, because of the variation in the
 size of the nodules discussed above, the positions of the nodules were
 frequently translocated because of differences in ranking of the size of
 the nodules.  This difference in segmental locations was arbitrarily
 resolved by reader #1 after remeasuring the nodules and re-ranking them
 according to their maximal diameter.  However, the data on segmental
 location is not sufficiently precise to permit publication as free
 standing data.  Yet, the data should prove useful in planning future
 surveys, as well as in analyzing distribution of the abnormalities into
 the regions of the lungs such as left versus right or upper versus lower.

 The etiology of the nodules represents a judgement on the part of the
 readers, and it proved to have reasonable inter-reader agreement.  The
 prevalence of post-inflammatory nodules was impressive.  This data should
 prove useful in assessing whether extensive inflammatory nodules of the
 lung such as one sees in histoplasmosis have an appreciable effect on
 pulmonary mechanics.  For the nodules which were judged to non-infectious,
 this data establishes an upper limit that one could expect in utilizing
 x-rays and evaluating the prevalence of abnormalities such as carcinoma of
 the lung.

 There was very good agreement between the readers as to the presence of
 pulmonary infiltrates.However, the readers varied as to how they coded a
 given infiltrate.  Platelike atelectasis presented a particular problem in
 coding.  This abnormality was coded by some as a nonhomogenous,
 nonsegmental lesion;by others as a homogeneous symmetrical lesion;and by
 others as "other" with a comment of platelike atelectasis.  Because this
 is a frequent abnormality in the lung,future coding forms should have an
 independent space for coding platelike atelectasis.

 Co-existence of a diffuse nonhomogeneous, nonsegmental pulmonary
 infiltrate (which would be compatible with a previous tubercular or fungal
 infection) and a more diffuse nonhomogeneous,nonsegmental infiltrate was a
 frequent source of coding problems.  Some readers coded this abnormality
 as a nonhomogeneous and as a symmetrical infiltrate of the lung. Other
 readers coded the infiltrates as both a nonhomogeneous nonsegmental and a
 homogeneous segmental infiltrate, emphasizing that there were components
 of both distributions present.It is my impression that these two lesions
 frequently co-exist and are both related to a previous tubercular or
 fungal infection -the major local infections causing the homogeneous and
 symmetrical infiltrates and the long-standing spread of antigen diffusely
 in the lung by bronchogenic spread leading to a more homogeneous and
 symmetrical infiltrate which is probably a fibrosis in the lung. Future
 recording forms should have an additional code which permits the reader to
 record this observation without entering the homogeneous and symmetrical
 infiltrate as an independent observation,or the coding directions should
 be explicit as to how to make independent judgements as to whether there
 were two components to the infiltrate in the lung.

 The assessment as to whether the nonhomogeneous,nonsegmental infiltrates
 were either minimal, moderate or far advanced, according to the former
 NTRDA classification (Diagnostic Standards and Classification of
 Tuberculosis, National Tuberculosis and Respiratory Disease Association,
 New York,NY,1969) did not present unusual problems.  This is a useful
 assessment and should permit comparing the extent of the radiographic
 lesion with the severity of the pulmonary function abnormalities and with
 the presence or absence of pulmonary symptomatology.

 In contrast,there was much inter-reader disagreement in assessing whether
 the homogeneous, symmetrical infiltrates were extensive by making
 judgement as to whether 1/3, 2/3 or the entire lung was involved.This data
 should not be used for publication. However,it could be used for
 comparison with assessments of the severity of the impairment by
 spirometry and other pulmonary data. If these prove to correlate well,
 then this assessment might be further refined for use in future surveys by
 refining the coding instructions.

 Assessing whether emphysema was present and whether the diaphragms were
 flat was subjective.The coding instructions were not explicit on criteria
 to use for judging the diaphragms as flat.The failure of all the readers,
 except a single one of the second readers using a blank rather than a code
 of 8 to signify the absence of findings,was the major source of recorded
 differences.  However, when this variability had been edited, and the
 reading adjudicated, the result in assessment of the prevalence of these
 findings represents a reasonable assessment for publication.This
 prevalence of findings on x-rays underestimates the prevalence of
 emphasyma. It has been previously reported (Am. Rev. Resp. Dis. 42:
 889-899, 1966) that this is not useful in detecting milk to early stages
 of emphysema. The data should be quite useful for use in conjunction with
 other pulmonary data, including the findings on physical examination,
 spirometry, carbon monoxide diffusion, and the size of the lungs as
 assessed by planimetry. It represents confirmatory evidence for the
 presence of emphysema. In future surveys, there should be criteria in the
 instructions for assessing whether diaphragms are flat.

 Calcified lymph nodes were prevalent. Instances where only one reader
 thought a lesion was present were adjudicated as absence of this
 finding.Lesions that were calcified and large were frequently recorded as
 only calcified and not as enlarged.Enlarged nodes which were calcified
 were adjudicated to be recorded only as "calcified nodes."

 Difficulties in coding pleural disease were presented by thickening of the
 pleura of the apex of the heart and of the lung.  These were findings
 which some readers did not code because they were frequent and considered
 normal.  In the adjudication procedure, if these pleural abnormalities
 were marked and thought to represent an extension of significant pulmonary
 disease, they were coded as abnormalities.In respect to the pleural
 findings, these x-rays have been reexamined as a subset to review for
 pneumonosis.  This data should be useful in judging the extent and
 etiology of the pleural disease and repre- sents an independent judgement
 by a panel of experts on pleural disease.

 Those x-rays that had a cardiovascular abnormality checked - azygous vein,
 right atrial and right ventricular enlargement, cephalization,
 interstitial fluids, Kerley lines, rosettes, alveolar fluid, and left
 atrial and left ventricular enlargement, should be reevaluated by a panel
 of cardiac experts to assess the nature of the cardiac abnormality.I
 believe the data that has been collected is a useful screen for the
 presence or absence of abnormality of the cardiovascular system but should
 not be used to report prevalence of either left or right ventricular
 disease.

 The pulmonary artery enlargement assessment was made by subjective
 evaluation.  When both readers on the initial evaluation concurred as to
 the presence of the pulmonary artery abnormality,that should be used as a
 lower limit of the abnormality in the population. A more explicit criteria
 for judgment of pulmonary artery enlargement should be developed and all
 x-rays positive for this finding should be answered by these criteria.The
 current data should be useful to compare with other pulmonary
 observations,but should not be used as free standing data for estimating
 the prevalence of pulmonary hypertension.  Those x-rays that were coded as
 showing pulmonary artery enlargement could be utilized as subsample for
 further evaluation by a panel of experts in pulmonary vasculature disease.




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