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Post-hire asthma among insect-rearing workers.
Suarthana-E; Shen-A; Henneberger-PK; Kreiss-K; Leppla-NC; Bueller-D; Lewis-DM; Bledsoe-TA; Janotka-E; Petsonk-EL
J Occup Environ Med 2012 Mar; 54(3):310-317
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.
Insects; Pulmonary-disorders; Pulmonary-function; Pulmonary-system; Respiration; Respiratory-hypersensitivity; Respiratory-infections; Respiratory-irritants; Respiratory-system-disorders; Exposure-levels; Exposure-limits; Risk-factors; Workplace-studies; Workers; Worker-health; Work-environment
Edward Lee Petsonk, MD, Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, 1095 Willowdale Rd, Morgantown WV 26505
Issue of Publication
Journal of Occupational and Environmental Medicine
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division