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. 2022 Sep 27:9:907990.
doi: 10.3389/fcvm.2022.907990. eCollection 2022.

Sleep duration and risk of cardio-cerebrovascular disease: A dose-response meta-analysis of cohort studies comprising 3.8 million participants

Yi-Ming Huang  1 , Wei Xia  2 , Yi-Jun Ge  1 , Jia-Hui Hou  1 , Lan Tan  1 , Wei Xu  1 , Chen-Chen Tan  1
Affiliations

Sleep duration and risk of cardio-cerebrovascular disease: A dose-response meta-analysis of cohort studies comprising 3.8 million participants

Yi-Ming Huang et al. Front Cardiovasc Med. .

Abstract

Background: The effect of extreme sleep duration on the risk of cardiovascular and cerebrovascular diseases (CCDs) remains debatable. The pathology of CCDs is consistent in some respects (e.g., vascular factors), suggesting that there may be an overlapping range of sleep duration associated with a low risk of both diseases We aimed to quantify the dose-response relationship between sleep duration and CCDs.

Study objective: To explore whether there is an optimal sleep duration (SD) in reducing the risk of CCDs.

Methods: PubMed and EMBASE were searched until June 24, 2022 to include cohort studies that investigated the longitudinal relationships of SD with incident CCDs, including stroke and coronary heart disease (CHD). The robusterror meta-regression model (REMR model) was conducted to depict the dose-response relationships based on multivariate-adjusted risk estimates.

Results: A total of 71 cohorts with 3.8 million participants were included for meta-analysis, including 57 for cardiovascular diseases (CVD) and 29 for cerebrovascular disease. A significant U-shaped relationship was revealed of nighttime sleep duration with either cardiovascular or cerebrovascular disease. The nighttime sleep duration associated with a lower risk of CVD was situated within 4.3-10.3 h, with the risk hitting bottom at roughly 7.5 h per night (p non-linearity < 0.0001). Sleep duration associated with a lower risk of cerebrovascular diseases ranges from 5 to 9.7 h per night, with the inflection at 7.5 h per night (p non-linearity = 0.05). Similar non-linear relationship exited in daily sleep duration and CCDs. Other subgroup analyses showed non-linear relationships close to the above results.

Conclusion: Rational sleep duration (7.5 h/night) is associated with a reduced risk of cardio-cerebrovascular disease for adults.

Keywords: cardiovascular disease; cerebrovascular disease; dose-response; meta-analysis; sleep duration.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

FIGURE 1
FIGURE 1
Search flowchart and summary characteristics of included studies, (A) for cardiovascular diseases and (B) for cerebrovascular diseases. CVD, cardiovascular disease; CHD, coronary heart disease; MI, myocardial infarction; IS, ischemic stroke; HS, hemorrhage stroke.
FIGURE 2
FIGURE 2
The dose-response analysis of cardio-cerebrovascular disease and sleep duration, (A) for nighttime sleep duration and (B) for daily sleep duration. CVD, cardiovascular disease.
See this image and copyright information in PMC

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