Working hours, sleep duration and the risk of acute coronary heart disease: A case–control study of middle-aged men in Taiwan
Abstract
Background This study aimed to examine whether long working hours and short sleep duration were associated with an increased risk of acute myocardial infarction (AMI) or severe coronary heart diseases (SCHD), independent of established psychosocial work-related factors.Methods A case-control study was conducted. Cases were 322 men, aged <60 years and economically active, who were admitted to hospital with a first diagnosed AMI or SCHD during 2008-2011, of whom 134 were confirmed AMI and the other 188 were angiography-confirmed SCHD. Controls were 644 men who were drawn from a national survey and were matched to the cases on age, education and area of residence. Odds ratios of total CHD and confirmed AMI in relation to average weekly working hours and daily hours of sleep were calculated.Results Men with average working hours longer than 60 h/week were found to have significantly increased risks for total CHD (OR=2.2) as compared to those with weekly working hours in 40-48 h, and those with daily hours of sleep fewer than 6 h were found to have increased risks for CHD (OR=3.0) as compared to those with sleeping hours in 6-9 h. Restriction to confirmed AMI yielded a greater risk and these associations remained consistent with adjustment of smoking status, body mass index and psychosocial work factors including job demands, job control, workplace justice, job insecurity and shift work.Conclusion The results support the hypothesis that long working hours and short sleep duration contribute independently to the risk of cardiovascular diseases in men.
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Men working longer than 60 h/week are at approximately double the risk for coronary heart disease.
“Cheng and colleagues found that men working longer than 60 h/week were at approximately double the risk for coronary heart disease (Cheng et al., 2014).”
From Addressing sleep disturbances: an opportunity to prevent cardiometabolic disease? (2014) · cites this paper as Cheng et al., 2014
Short sleep duration moderates the effect of long working hours on coronary heart disease risk, with those sleeping less than 6 h on average being at the highest risk.
“Notably, short sleep duration in this group was found to be a significant moderator of the effect, with those sleeping < 6 h on average being at the highest risk.”
From Addressing sleep disturbances: an opportunity to prevent cardiometabolic disease? (2014) · cites this paper as Cheng et al., 2014
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“For example, Cheng and colleagues found that men working longer than 60 h/week were at approximately double the risk for coronary heart disease (Cheng et al., 2014).”
Background
- Authors
- Cheng, Y., Du, C.-L., Hwang, J.-J., Chen, I.-S., Chen, M.-F., & Su, T.-C.
- Affiliations
- National Taiwan University (TW)
- National Taiwan University Hospital (TW)
- Corresponding author
- Su, Ta-Chen
- Venue
- International Journal of Cardiology
- Publisher
- Elsevier BV
- Published
- 2014-02
- Volume
- 171
- Issue
- 3
- Pages
- 419-422
- ISSN
- 0167-5273 (ISSN-L)
- OpenAlex
- W2171360405
- Cited by
- 76
- References
- 31
- Citations by year
- 2025: 3 · 2024: 4 · 2023: 7 · 2022: 6 · 2021: 4 · 2020: 4 · 2019: 10 · 2018: 5 · 2017: 4 · 2016: 10 · 2015: 9 · 2014: 10
- FWCI
- 15.30
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Cardiology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Science Council (NSC 99-2410-H002-171-MY3)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Health Sciences › Health Professions › General Health Professions › Workplace Health and Well-being
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Risk Factors
- Keywords
- long working hours, sleep duration, acute myocardial infarction, coronary heart disease risk, middle-aged men, psychosocial work factors, job demands, job control, workplace justice, job insecurity, shift work, cardiovascular disease
- MeSH terms
- Acute Disease, Adult, Coronary Disease, Humans, Male, Middle Aged, Risk Factors, Sleep, Sleep Stages, Taiwan, Time Factors, Work Schedule Tolerance, Case-Control Studies
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