Toru Tsuboya1, Jun Aida, Ken Osaka, Ichiro Kawachi. 1. Harvard School of Public Health, Department of Social and Behavioral Sciences, Boston, Massachusetts; Tohoku University Graduate School of Dentistry, Department of International and Community Oral Health, Sendai, Miyagi, Japan.
Abstract
BACKGROUND: Evidence on the causal relationship between working overtime and the risk of coronary heart disease is limited. METHODS: We surveyed 2355 workers in Japan and conducted propensity-matched logistic regression analysis, using propensity-matched 438 pairs, to evaluate the associations between working overtime (more than 50 hr per week) and coronary risk factors: physical inactivity, cigarette smoking, sleep deprivation (<5 hr/day), psychological stress, overweight/obesity, and excessive alcohol consumption. The exposure and outcomes were self-reported. RESULTS: Among 2355 workers, 476 participants worked overtime. Propensity-matched analysis revealed that the associations between working overtime and sleep deprivation (odds ratios (OR) and 95% confidence intervals: 2.33, 1.39-3.88) and high stress (2.13, 1.60-2.82). The associations between working overtime and physical inactivity, current smoking, and overweight/obesity were not statistically significant. Excessive alcohol consumption was inversely associated with working overtime. CONCLUSIONS: Working overtime was positively associated with two coronary risk factors: sleep deprivation and increased psychological stress.
BACKGROUND: Evidence on the causal relationship between working overtime and the risk of coronary heart disease is limited. METHODS: We surveyed 2355 workers in Japan and conducted propensity-matched logistic regression analysis, using propensity-matched 438 pairs, to evaluate the associations between working overtime (more than 50 hr per week) and coronary risk factors: physical inactivity, cigarette smoking, sleep deprivation (<5 hr/day), psychological stress, overweight/obesity, and excessive alcohol consumption. The exposure and outcomes were self-reported. RESULTS: Among 2355 workers, 476 participants worked overtime. Propensity-matched analysis revealed that the associations between working overtime and sleep deprivation (odds ratios (OR) and 95% confidence intervals: 2.33, 1.39-3.88) and high stress (2.13, 1.60-2.82). The associations between working overtime and physical inactivity, current smoking, and overweight/obesity were not statistically significant. Excessive alcohol consumption was inversely associated with working overtime. CONCLUSIONS: Working overtime was positively associated with two coronary risk factors: sleep deprivation and increased psychological stress.
Authors: Marianna Virtanen; Linda Magnusson Hansson; Marcel Goldberg; Marie Zins; Sari Stenholm; Jussi Vahtera; Hugo Westerlund; Mika Kivimäki Journal: J Epidemiol Community Health Date: 2018-10-16 Impact factor: 3.710