1. Cardiovascular mortality in a Swedish cohort of female industrial workers exposed to noise and shift work
- Author
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Richard L. Neitzel, Mia Söderberg, Eva Andersson, Kjell Torén, and Helena Eriksson
- Subjects
Paper ,Shift work ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Noise exposure ,Occupational Exposure ,Manufacturing Industry ,medicine ,Humans ,030212 general & internal medicine ,Myocardial infarction ,Cerebrovascular disease ,Night work ,Cardiovascular mortality ,Aged ,Sweden ,business.industry ,Paper mills ,Public Health, Environmental and Occupational Health ,Shift Work Schedule ,Middle Aged ,medicine.disease ,030210 environmental & occupational health ,JEM ,Total mortality ,Noise ,Cardiovascular Diseases ,Cohort ,Noise, Occupational ,Female ,Original Article ,business ,Demography - Abstract
Purpose The aim was to study mortality due to cardiovascular disease as well as total mortality, among female industrial workers, and the association to occupational noise and shift work. Methods Women from cohorts of soft tissue paper mills (N = 3013) and pulp and paper mills (N = 1483) were merged into one cohort. Job exposure matrices were developed and used for classification of shift work and noise exposure. Every year was classified as shift work excluding nights or shift work including nights. Noise was classified into seven 5 dB(A) bins from Results Fatal myocardial infarctions (N = 144) were increased in the total cohort, SMR 1.20 (95% CI 1.01–1.41) but not total mortality. The SMR for myocardial infarction for women exposed to noise ≥ 90 dB(A) for > 10 years was 1.41 (95% CI 1.02–1.89) and for those exposed to night shifts > 10 years, 1.33 (95% CI 0.91–1.89). Shift workers without nights ≤ 65 years, with noise exposure ≥ 90 dB(A), had SMR 2.41 (95% CI 1.20–4.31) from myocardial infarction. There was no increased mortality from cerebrovascular disease. Conclusions Female paper mill workers had an increased mortality from acute myocardial infarction, especially before retirement age, when exposed to noise ≥ 90 dB(A) and with long-time employment. Exposure to shift work and noise usually occurred concurrently.
- Published
- 2019