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Li, J.* ; Atasoy, S. ; Fang, X. ; Angerer, P.* ; Ladwig, K.-H.

Combined effect of work stress and impaired sleep on coronary and cardiovascular mortality in hypertensive workers: The MONICA/KORA cohort study.

Eur. J. Prev. Cardiol. 28, 220-226 (2021)
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Open Access Green
Background: Although work stress and impaired sleep are established risk factors for cardiovascular disease (CVD) among healthy individuals, their impact on hypertensive workers is largely unknown. Design: Prospective cohort study design. Methods: Hypertensive workers (N = 1959), derived from the population-based MONICA/KORA study in Southern Germany, who were free of any cardiovascular disease and diabetes were interviewed at baseline for work stress (high demand plus low control) and impaired sleep (difficulties falling asleep and/or maintaining sleep). Hazard ratios and 95% confidence intervals (CIs) were estimated by multivariate Cox proportional hazards models with adjustment for relevant covariates. Results: During a mean follow-up of 17.8 years covering 34,900 person-years, 134 fatal CVD and 73 coronary heart disease (CHD) events were observed. In comparison to participants with low work stress and non-impaired sleep, participants with work stress (hazard ratio (HR) 1.56, 95% CI 0.81-2.98), or impaired sleep (HR 1.76, 95% CI 0.96-3.22) had an increased risk of CVD, while participants with both work stress and impaired sleep had the highest risk of CVD mortality (HR 2.94, 95% CI 1.18-7.33). Participants with both risk conditions had an absolute CVD mortality risk of 7.13 cases per 1000 person-years in comparison to 3.05 cases per 1000-person years in the reference group. Similar risk patterns were found for CHD mortality. Conclusions: Our findings add a new piece of evidence that work stress together with impaired sleep increase risk of coronary and cardiovascular mortality in hypertensive workers.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Cardiovascular Diseases ; Hypertension ; Impaired Sleep ; Mortality ; Work Stress
ISSN (print) / ISBN 2047-4873
e-ISSN 2047-4881
Quellenangaben Volume: 28, Issue: 2, Pages: 220-226 Article Number: , Supplement: ,
Publisher Sage
Publishing Place Great Clarendon St, Oxford Ox2 6dp, England
Reviewing status Peer reviewed
Grants Munich Heart Alliance
State of Bavaria
Helmholtz Zentrum Munchen, German Research Centre for Environmental Health - German Federal Ministry of Education and Research