Night shift work characteristics and risk of incident coronary heart disease among health care workers: national cohort study
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Night shift work characteristics and risk of incident coronary heart disease among health care workers : national cohort study. / Vestergaard, Jesper Medom; Dalbøge, Annett; Bonde, Jens Peter Ellekilde; Garde, Anne Helene; Hansen, Johnni; Hansen, Åse Marie; Larsen, Ann Dyreborg; Härmä, Mikko; Costello, Sadie; Böttcher, Morten; Kolstad, Henrik Albert.
I: International Journal of Epidemiology, Bind 52, Nr. 6, 2023, s. 1853–1861.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Night shift work characteristics and risk of incident coronary heart disease among health care workers
T2 - national cohort study
AU - Vestergaard, Jesper Medom
AU - Dalbøge, Annett
AU - Bonde, Jens Peter Ellekilde
AU - Garde, Anne Helene
AU - Hansen, Johnni
AU - Hansen, Åse Marie
AU - Larsen, Ann Dyreborg
AU - Härmä, Mikko
AU - Costello, Sadie
AU - Böttcher, Morten
AU - Kolstad, Henrik Albert
N1 - © The Author(s) 2023; all rights reserved. Published by Oxford University Press on behalf of the International Epidemiological Association.
PY - 2023
Y1 - 2023
N2 - BACKGROUND: Night work has been associated with coronary heart disease. The present study examined exposure-response relations between quantitative night work characteristics and coronary heart disease (angina pectoris or myocardial infarction) with the aim to contribute to evidence-based recommendations for low-risk night work schedules.METHODS: We followed 100 149 night workers (80% women) and 153 882 day workers (78% women), all health care workers in Denmark with day by day payroll information on night shifts from 2007 to 2015. We analysed data with Poisson regression stratified by sex and adjusted for age, calendar year, diabetes, family history of cardiovascular disease, educational level, occupation, indicators for obesity, hypercholesterolaemia, and hypertension.RESULTS: Female and male night workers worked on average 1.7 and 1.8 night shifts per month for an average duration of less than 4 years. During follow-up, 1198 night and 2128 day workers were hospitalized with first-time coronary heart disease. When compared with day workers, the overall incidence rate ratios for female and male night workers were 1.06 [95% confidence interval (CI): 0.97, 1.17] and 1.22 (95% CI 1.07, 1.39). Highest risks were observed in top exposure categories for several night work characteristics. However, no consistent exposure-response relations by number of monthly night shifts, cumulative night shifts, years with rotating night shifts, years with any night shift and consecutive night shifts were observed among the night workers of either sex.CONCLUSIONS: This study of a population with low exposure to night work does not indicate that reducing extent of monthly night shifts, cumulative night shifts, years with rotating night shifts, years with any night shift and consecutive night shifts would reduce the risk of coronary heart disease.
AB - BACKGROUND: Night work has been associated with coronary heart disease. The present study examined exposure-response relations between quantitative night work characteristics and coronary heart disease (angina pectoris or myocardial infarction) with the aim to contribute to evidence-based recommendations for low-risk night work schedules.METHODS: We followed 100 149 night workers (80% women) and 153 882 day workers (78% women), all health care workers in Denmark with day by day payroll information on night shifts from 2007 to 2015. We analysed data with Poisson regression stratified by sex and adjusted for age, calendar year, diabetes, family history of cardiovascular disease, educational level, occupation, indicators for obesity, hypercholesterolaemia, and hypertension.RESULTS: Female and male night workers worked on average 1.7 and 1.8 night shifts per month for an average duration of less than 4 years. During follow-up, 1198 night and 2128 day workers were hospitalized with first-time coronary heart disease. When compared with day workers, the overall incidence rate ratios for female and male night workers were 1.06 [95% confidence interval (CI): 0.97, 1.17] and 1.22 (95% CI 1.07, 1.39). Highest risks were observed in top exposure categories for several night work characteristics. However, no consistent exposure-response relations by number of monthly night shifts, cumulative night shifts, years with rotating night shifts, years with any night shift and consecutive night shifts were observed among the night workers of either sex.CONCLUSIONS: This study of a population with low exposure to night work does not indicate that reducing extent of monthly night shifts, cumulative night shifts, years with rotating night shifts, years with any night shift and consecutive night shifts would reduce the risk of coronary heart disease.
U2 - 10.1093/ije/dyad126
DO - 10.1093/ije/dyad126
M3 - Journal article
C2 - 37741924
VL - 52
SP - 1853
EP - 1861
JO - International Journal of Epidemiology
JF - International Journal of Epidemiology
SN - 0300-5771
IS - 6
ER -
ID: 368580980