Sleep Duration and Patterns in Chinese Older Adults: a Comprehensive Meta-analysis
AuthorLu, L; Wang, S-B; Rao, W-W; Ungvari, GS; Ng, CH; Chiu, HFK; Zhang, J; Kou, C; Jia, F-J; Xiang, Y-T
Source TitleInternational Journal of Biological Sciences
PublisherIVYSPRING INT PUBL
University of Melbourne Author/sNg, Chee
Document TypeJournal Article
CitationsLu, L., Wang, S. -B., Rao, W. -W., Ungvari, G. S., Ng, C. H., Chiu, H. F. K., Zhang, J., Kou, C., Jia, F. -J. & Xiang, Y. -T. (2017). Sleep Duration and Patterns in Chinese Older Adults: a Comprehensive Meta-analysis. INTERNATIONAL JOURNAL OF BIOLOGICAL SCIENCES, 13 (6), pp.682-689. https://doi.org/10.7150/ijbs.19695.
Access StatusOpen Access
This meta-analysis examined the mean sleep duration and patterns in Chinese older adult population. A literature search was systematically conducted covering major English (PubMed, Embase and PsycINFO) and Chinese (Chinese National Knowledge Infrastructure (CNKI), WanFang and SinoMed) databases. Data in studies with the mean and standard deviation of sleep duration and/or the proportion of short and long sleep durations in Chinese older adults were extracted and pooled using random-effects models. Subgroup analyses were conducted according to gender, region, area, survey time and sample size. A total of 36 studies with 150,616 subjects were included for analyses. The pooled mean sleep duration of 21 studies with available data was 6.82 hours/day (95% CI: 6.59-7.05 hours/day). The estimated proportions of sleep duration <5 hours/day, <6 hours/day, <7 hours/day were 18.8% (95% CI: 1.7%-35.9%), 26.7% (95% CI: 19.7%-33.7%) and 42.3% (95% CI: 34.8%-49.8%), respectively. The pooled proportions for long sleepers were 22.6% (95% CI: 13.9%-31.4%) (>8 hours/day) and 17.6% (95% CI: 12.4%-22.9%) (>9 hours/day). Given the adverse effects of unhealthy sleep patterns, health professionals should pay more attention to sleep patterns in this population in China.
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