Relationship of Sleep Duration With All‐Cause Mortality and Cardiovascular Events: A Systematic Review and Dose‐Response Meta‐Analysis of Prospective Cohort Studies

Journal of the American Heart Association - Tập 6 Số 9 - 2017
Jiawei Yin1,2, Xiaoling Jin1,2, Zhilei Shan1,3,2, Shuzhen Li1,2, Hao Huang1,2, Peiyun Li1,2, Xiaobo Peng1,2, Peng Zhao1,2, YU Kai-feng1,2, Wei Bao4, Wei Yang1,2, Xiaoyi Chen5, Liegang Liu1,2
1Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
2MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
3Departments of Nutrition, Harvard T. H. Chan School of Public Health, Boston, MA
4Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, IA
5School of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China

Tóm tắt

Background Effects of extreme sleep duration on risk of mortality and cardiovascular outcomes remain controversial. We aimed to quantify the dose‐response relationships of sleep duration with risk of all‐cause mortality, total cardiovascular disease, coronary heart disease, and stroke.

Methods and Results PubMed and Embase were systematically searched for prospective cohort studies published before December 1, 2016, that examined the associations between sleep duration and at least 1 of the 4 outcomes in generally healthy populations. U‐shaped associations were indicated between sleep duration and risk of all outcomes, with the lowest risk observed for ≈7‐hour sleep duration per day, which was varied little by sex. For all‐cause mortality, when sleep duration was <7 hours per day, the pooled relative risk (RR) was 1.06 (95% CI , 1.04–1.07) per 1‐hour reduction; when sleep duration was >7 hours per day, the pooled RR was 1.13 (95% CI , 1.11–1.15) per 1‐hour increment. For total cardiovascular disease, the pooled RR was 1.06 (95% CI , 1.03–1.08) per 1‐hour reduction and 1.12 (95% CI , 1.08–1.16) per 1‐hour increment of sleep duration. For coronary heart disease, the pooled RR was 1.07 (95% CI , 1.03–1.12) per 1‐hour reduction and 1.05 (95% CI , 1.00–1.10) per 1‐hour increment of sleep duration. For stroke, the pooled RR was 1.05 (95% CI , 1.01–1.09) per 1‐hour reduction and 1.18 (95% CI , 1.14–1.21) per 1‐hour increment of sleep duration.

Conclusions Our findings indicate that both short and long sleep duration is associated with an increased risk of all‐cause mortality and cardiovascular events.

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Journal of the American Heart Association

Tập 6 Số 9

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