Jean M Cox-Ganser1, Sandra K White, Kathleen B Fedan, Rachel L Bailey, Ethan Fechter-Leggett, Kristin J Cummings. 1. National Institute for Occupational Safety and Health, Respiratory Health Division, Morgantown, West Virginia (Dr Cox-Ganser, Dr White, Fedan, Bailey, Fechter-Leggett, Dr Cummings), Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah (Dr White), and Occupational Health Branch, California Department of Public Health, Richmond, California (Dr Cummings).
Abstract
OBJECTIVE: The aim of this study was to compare spirometry results in microwave popcorn and flavoring manufacturing workers. METHODS: We used NIOSH data on current and former microwave popcorn workers (MPWs) and surveillance data on flavoring manufacturing workers (FMWs). RESULTS: Former MPW had higher prevalence of mixed and high severity abnormalities, some had excessive lung function drops. Current MPW had lowest occurrence of excessive lung function drops. FMW with excessive drops and spirometric abnormalities at last test had developed a restrictive pattern. Spirometric abnormalities and excessive drops were associated with work-related factors. CONCLUSION: There was evidence of a healthy worker survivor effect in MPW. Importantly, removal from exposure did not always stabilize lung function decline indicating a need for continued monitoring. The development of a restrictive pattern should raise the level of suspicion for possible work-related disease in flavoring-exposed workers.
OBJECTIVE: The aim of this study was to compare spirometry results in microwave popcorn and flavoring manufacturing workers. METHODS: We used NIOSH data on current and former microwave popcorn workers (MPWs) and surveillance data on flavoring manufacturing workers (FMWs). RESULTS: Former MPW had higher prevalence of mixed and high severity abnormalities, some had excessive lung function drops. Current MPW had lowest occurrence of excessive lung function drops. FMW with excessive drops and spirometric abnormalities at last test had developed a restrictive pattern. Spirometric abnormalities and excessive drops were associated with work-related factors. CONCLUSION: There was evidence of a healthy worker survivor effect in MPW. Importantly, removal from exposure did not always stabilize lung function decline indicating a need for continued monitoring. The development of a restrictive pattern should raise the level of suspicion for possible work-related disease in flavoring-exposed workers.
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