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Prevention of Occupational Asthma: Prevention Study Details
| Type | Secondary | | Author | Pal TM | | Study Year | 1999 | | Country | Netherlands | | Molecular Weight | Both | | Category | Various | | Agent | Allergens from contaminated humidification systems or small particles of oil mist | | Occupation | Fiber plant workers | | Outcome/Diagnosis | Humidifier disease and work related asthma | | Activity Intervention | Removal from exposure | | Participation Rate | Limitation: no report of participation rate | | Intervention Effectiveness | At follow up after removal from further exposure:
1. Patients with work related asthma were less symptom free.
2. Patients with an obstructive defect (obstructive type of humidifier lung (II ) and work related asthma(IV) ) had greater need of daily medication than did patients with humidifier fever(I) and the restrictive type of humidifier lung (III).
3. Mean FEV1 in patients with an obstructive defect at follow up was significantly higher than at diagnosis, and it still remained below the predicted value.
4. Sickness absence due to respiratory symptoms sharply declined in the workers with humidifier lung ((II + III) and work related asthma
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Teake M Pal, Jan G R de Monchy, Johan W Groothoff, and Doeke Post.. Follow up investigation of workers in synthetic fibre plants with humidifier disease and work related asthma.. Occup Environ Med. 1999; 56 (): 403-410.
 Occupational Asthma Prevention - OA Prevention Study Search
Page last modified: February 22, 2007
Page last reviewed: June 4, 2008
Content Source: National Institute for Occupational Safety and Health (NIOSH)
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