June C. Lo
Self-reported sleep duration and cognitive performance in older adults: A systematic review and meta-analysis
Lo, June C.; Groeger, John A.; Cheng, Grand H.; Dijk, Derk-Jan; Chee, Michael W. L.
Authors
John A. Groeger
Grand H. Cheng
Derk-Jan Dijk
Michael W. L. Chee
Abstract
Sleep is important for optimal cognitive functioning across the lifespan. Among older adults (≥ 55 years), self-reported short and long sleep durations have been repeatedly, albeit inconsistently, reported to elevate the risk for poor cognitive function. This meta-analytic review quantitatively summarizes the risk for poorer cognitive function among short and long sleepers in older adults. Eligible publications were searched online and manually. A total of 35 independent samples (N = 97,264) from 11 cross-sectional and seven prospective cohort studies were included. Pooled odds ratios (OR) with 95% confidence intervals (CI) were derived using random-effects models. Self-reported short and long sleep increased the odds for poor cognitive function by 1.40 (CI = 1.27–1.56) and 1.58 times (CI = 1.43–1.74), respectively. Effect sizes varied across studies and may have been moderated by both study type (cross-sectional and prospective) and cognitive domain assessed. For cross-sectional studies, extreme sleep durations were significantly associated with poorer multiple-domain performance, executive functions, verbal memory, and working memory capacity. Prospective cohort studies revealed significant long-term impact of short and long sleep on multiple-domain performance only. These findings establish self-reported extreme sleep duration as a risk factor for cognitive aging.
Citation
Lo, J. C., Groeger, J. A., Cheng, G. H., Dijk, D., & Chee, M. W. L. (2016). Self-reported sleep duration and cognitive performance in older adults: A systematic review and meta-analysis. Sleep medicine, 17, 87-98. https://doi.org/10.1016/j.sleep.2015.08.021
Journal Article Type | Review |
---|---|
Acceptance Date | Aug 8, 2015 |
Online Publication Date | Sep 25, 2016 |
Publication Date | Jan 1, 2016 |
Deposit Date | Nov 6, 2015 |
Publicly Available Date | Nov 23, 2017 |
Journal | Sleep medicine |
Print ISSN | 1389-9457 |
Electronic ISSN | 1878-5506 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 17 |
Pages | 87-98 |
DOI | https://doi.org/10.1016/j.sleep.2015.08.021 |
Keywords | Sleep duration; Cognitive function; Older adults; Review; Meta-analysis |
Public URL | https://hull-repository.worktribe.com/output/380907 |
Publisher URL | http://www.sciencedirect.com/science/article/pii/S1389945715019796 |
Additional Information | This is an open access article published in Sleep Medicine, 2015. |
Files
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Copyright Statement
©2015. This article is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
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