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. 2012 Mar;54(3):310-7.
doi: 10.1097/JOM.0b013e31823fe098.

Post-hire asthma among insect-rearing workers

Eva Suarthana  1 , Angela Shen, Paul K Henneberger, Kathleen Kreiss, Norman C Leppla, David Bueller, Daniel M Lewis, Toni A Bledsoe, Erika Janotka, Edward L Petsonk
Affiliations

Post-hire asthma among insect-rearing workers

Eva Suarthana et al. J Occup Environ Med. 2012 Mar.

Abstract

Objective: To evaluate the incidence of post-hire asthma (PHA) among insect-rearing workers, defined as asthma, the symptoms of which appeared after hire at the current workplace.

Methods: We surveyed the health of workers at three insect-rearing facilities and an associated office facility. We calculated the incidence and estimated hazard ratios for PHA.

Results: Post-hire asthma incidence in 157 insect-rearing workers was 16.2 per 1000 person-years compared with 9.2 per 1,000 person-years in 70 office workers. Workers with predominant exposure to Lepidoptera had an incidence of 26.9 per 1000 person-years and a hazard ratio of 5.5 (95% confidence interval: 1.6 to 23.9) adjusted for sex, race, and parental asthma. In contrast, the presence of specific immunoglobulin E to Lepidoptera antigens was not associated with PHA.

Conclusion: Insect-rearing workers had a high incidence of PHA, primarily accounted for by workplace exposure to Lepidoptera.

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