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Relationship Between Sleep and Cognitive Frailty in Older Adults: A Systematic Review and Meta-Analysis
Xuehan Ma1, Gengxin Yao1, Xinyu Wan1
1School of Nursing, Jilin University, Changchun, China.
Journal of Advanced Nursing
|May 28, 2025
Summary
Poor sleep quality, long sleep duration, and insomnia are linked to cognitive frailty in older adults. Further research is needed to understand the causal relationship between sleep and cognitive health.
Area of Science:
- Gerontology
- Sleep Medicine
- Cognitive Neuroscience
Background:
- Cognitive frailty is a growing concern in aging populations.
- Sleep disturbances are common among older adults and may impact cognitive function.
Purpose of the Study:
- To systematically review and meta-analyze the relationship between sleep parameters and cognitive frailty in older adults.
Main Methods:
- Systematic review and meta-analysis of studies from multiple databases (Web of Science, Cochrane Library, CINAHL, Embase, PsycINFO, PubMed).
- Included 13 articles with 14,223 participants; 10 studies were included in the meta-analysis.
- Quality assessment using Joanna Briggs Institute Critical Appraisal Tool and Newcastle-Ottawa Scale, following PRISMA guidelines.
Main Results:
- Overall prevalence of cognitive frailty was 25% across included studies.
- Poor sleep quality, long sleep time, and insomnia were significantly correlated with cognitive frailty.
- Short sleep time did not show a significant association with cognitive frailty.
Conclusions:
- Sleep parameters including long sleep time, insomnia, and poor sleep quality are associated with cognitive frailty.
- Highlights the need for integrating sleep assessments and interventions into care plans for older adults.
- Suggests future research should utilize longitudinal designs and validated instruments to clarify causality.
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