Sleep duration and risk of all-cause mortality: a systematic review and meta-analysis.

ABSTRACT:

Aims

To determine the association between the sleep duration and the risk of all-cause mortality in adults.

Methods

A search strategy was conducted in the MEDLINE, CENTRAL, EMBASE and LILACS databases. Searches were also conducted in other databases and unpublished literature. Cohort studies were included without language, time or setting restrictions. The risk of bias was evaluated with a modified Cochrane Collaboration's tool. An analysis of random effects was conducted. The primary outcome was all-cause mortality. The measure of the effect was the risk difference (RD) with a 95% confidence interval (CI). The planned comparisons were 7-9 h of sleep v. <7 h and the same reference v. >9 h.

Results

Thirty-nine studies were included in our qualitative analysis, regardin

SUBMITTER: Garcia-Perdomo HA 

PROVIDER: S-EPMC6998920 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature