The effect of long working hours on cerebrovascular and cardiovascular disease; A case‐crossover study

Shin, Kyong-sok; Chung, Yun Kyung; Kwon, Young-Jun; Son, Jun-Seok; Lee, Sehoon

doi:10.1002/ajim.22688

Cited by 14 publications

(12 citation statements)

References 42 publications

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“…This finding means that workers working long hours have a higher risk of suffering from cardiovascular heart diseases and metabolic syndrome compared to those not working long hours. Some studies have demonstrated that the risk of cardiovascular heart diseases was caused by increase in weekly work hours [102,103]. Yu [104] reported that long working hours, especially 60 or more per week, increased the risk of metabolic syndrome.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Long Working Hours and Overtime on Occupational Health: A Meta-Analysis of Evidence from 1998 to 2018

Wong

Chan

Ngan

2019

IJERPH

269

170

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There has been no subsequent meta-analysis examining the effects of long working hours on health or occupational health since 1997. Therefore, this paper aims to conduct a meta-analysis covering studies after 1997 for a comparison. A total of 243 published records were extracted from electronic databases. The effects were measured by five conditions, namely, physiological health (PH), mental health (MH), health behaviours (HB), related health (RH), and nonspecified health (NH). The overall odds ratio between long working hours and occupational health was 1.245 (95% confidence interval (CI): 1.195–1.298). The condition of related health constituted the highest odds ratio value (1.465, 95% CI: 1.332–1.611). The potential moderators were study method, cut-point for long weekly working hours, and country of origin. Long working hours were shown to adversely affect the occupational health of workers. The management on safeguarding the occupational health of workers working long hours should be reinforced.

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Section: Discussionmentioning

confidence: 99%

The Effect of Long Working Hours and Overtime on Occupational Health: A Meta-Analysis of Evidence from 1998 to 2018

Wong

Chan

Ngan

2019

IJERPH

269

170

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“…A major limitation in existing studies is the lack of longitudinal assessment of long working hours and psychosocial factors over time, i.e., as time-varying exposures. However, one study from Korea used a case-crossover design and found a significant increase in average weekly working hours right before the cardiovascular event [ 27 ]. Therefore, future studies would benefit from shifting the focus from the assessment of static baseline characteristics to time-varying and triggering effects that may explain the link between long working hours and CVD.…”

Section: Psychosocial Mechanismsmentioning

confidence: 99%

Long Working Hours and Risk of Cardiovascular Disease

Virtanen

Kivimäki

2018

Curr Cardiol Rep

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Purpose of ReviewTo summarize the evidence on the relationship between long working hours and cardiovascular disease, such as coronary heart disease and stroke.Recent FindingsLarge-scale meta-analyses with published and individual participant observational data on more than 740,000 men and women free of cardiovascular disease report a link between long working hours (≥ 55 h a week) and the onset of cardiovascular events. Our meta-analytic update of summary evidence suggests a 1.12-fold (95% CI 1.03–1.21) increased risk associated with coronary heart disease and a 1.21-fold (95% CI 1.01–1.45) increased risk of stroke, although the evidence is somewhat inconsistent and the possibility of residual confounding and bias cannot be ruled out. Few studies have examined the mechanisms which may be stress-related, behavioral, or biological. The recent pooled analyses suggest that increased cardiac electric instability and hypercoagulability might play a role.SummaryThe evidence that long working hours are a risk factor for cardiovascular disease is accumulating and suggests a small risk. Studies on the effects of long working hours in high-risk populations and those with pre-existing cardiovascular disease, mechanistic research, and intervention studies are needed to advance this research field.

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“…Several Korean researchers have studied the relationship between working hours and cerebro‐cardio vascular disease (CCVD), mental illness, and suicide. Some case‐control and case‐crossover studies in Korea have found that long working hours and work intensity could be risk factors of CCVDs . A few studies on the relationship between suicide and overwork using representative national data showed an association between working hours and depressive symptoms or suicide ideation in Korea .…”

Section: Introductionmentioning

confidence: 99%

“…Some case-control and case-crossover studies in Korea have found that long working hours and work intensity could be risk factors of CCVDs. [3][4][5][6] A few studies on the relationship between suicide and overwork using representative national data showed an association between working hours and depressive symptoms or suicide ideation in Korea. [7][8][9] Korea is also one of just a few countries that provide compensation for CCVDs and mental disorders related to long working hours, a heavy workload, or stressful events.…”

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confidence: 99%

Overwork-related disorders and recent improvement of national policy in South Korea

Kim

Koo

Lee

et al. 2019

Journal of Occupational Health

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Objectives Recently, overwork‐related disorders have become a major public health concern in Korea. This study investigated the current trends of working hours, causes of death in the working population, and compensation rates. Methods We reviewed the current trends of working hours, cause of death statistics in the working population, industrial accident compensation insurance (IACI) statistics, issues of compensation and prevention of work‐related cerebro‐cardio vascular diseases (CCVDs), mental disorders, and suicide. Results Although weekly working hours and the proportion of long working days have decreased, workers in small companies with fewer than five employees and those in the service sector continue to work long hours. The age standardized mortality due to CCVD and suicide was highest among those with managerial roles. In total, 589 CCVD cases and 104 mental disorder or suicide cases were compensated as occupational diseases in 2017. Between 2016 and 2017, 61% of 59 compensated suicides were related to overwork, specifically: long working hours, increased responsibility, or increased workload. The Korean government has introduced various policies to reduce working hours and to increase compensation approval rate for overwork‐related CCVDs. Stakeholders have called for the introduction of independent laws to prevent overwork‐related disorders, change organizational culture, and address the blind spots of the IACI Act and Labor Standard Act. Conclusions Prevention and compensation policies have improved working conditions in Korea, but there remains much to be done. This review significantly contributes to the understanding of the overall policies and research to prevent overwork‐related disorders in Korea.

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The effect of long working hours on cerebrovascular and cardiovascular disease; A case‐crossover study

Abstract: An increase in average weekly working hours may trigger the onset of cerebro-cardiovascular disease. Am. J. Ind. Med. 60:753-761, 2017. © 2017. Wiley Periodicals, Inc.

Cited by 14 publications

References 42 publications

The Effect of Long Working Hours and Overtime on Occupational Health: A Meta-Analysis of Evidence from 1998 to 2018

The Effect of Long Working Hours and Overtime on Occupational Health: A Meta-Analysis of Evidence from 1998 to 2018

Long Working Hours and Risk of Cardiovascular Disease

Overwork-related disorders and recent improvement of national policy in South Korea

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