To explore the relationship between sleep and cognitive frailty in older adults.
A systematic review and meta-analysis.
The Web of Science, Cochrane Library, CINAHL, Embase, PsycINFO and PubMed databases were searched from inception to October 28, 2024.
Two investigators independently conducted literature screening, data extraction and quality assessment. The Joanna Briggs Institute Critical Appraisal Tool and Newcastle–Ottawa Scale were used to evaluate methodological quality. This review followed PRISMA guidelines.
This review included 13 articles involving 14,223 individuals, and 10 studies included in the meta-analysis. Across 13 studies, the overall prevalence of cognitive frailty was 25%. Sleep problems were categorised into four categories; the results reported that poor sleep quality, long sleep time and insomnia were correlated with the presence of cognitive frailty. However, the relationship between short sleep time and cognitive frailty was not significant.
This review quantitatively suggested that sleep parameters such as long sleep time, insomnia and poor sleep quality were correlated with the presence of cognitive frailty. Future research should adopt longitudinal designs and use validated instruments to measure both quantitative and qualitative aspects of sleep, thereby facilitating a thorough examination of the strength of the relationship between sleep and cognitive frailty, as well as the direction of causality.
The review highlights the need to integrate comprehensive sleep assessments and targeted interventions into nursing care plans for older adults to enhance their sleep health. The findings will provide support for the development of effective interventions to prevent and manage cognitive frailty in the older population.
No patient or public contribution.
Symptom networks offer a new approach to explore the relationships among various symptoms and provide information for optimising precise symptom management strategies. However, no previous studies have identified the central symptoms of multidimensional frailty.
A cross-sectional study was conducted from December 2023 to March 2024 in China.
A total of 933 community-dwelling older adults (aged 60 years or older) in China were recruited via convenience sampling.
Sociodemographic variables, clinical variables and scores on the Tilburg Frailty Indicator were assessed in all participants. The qgraph package and IsingFit package of R software were applied to construct the symptom network. Three node centrality indices (strength, betweenness and closeness) and the expected influence were calculated to identify the central symptoms of the multidimensional frailty network. All statistical analyses were performed in R.
A total of 933 individuals were surveyed in this study, including 472 (50.6%) females. The median age of all participants was 71.0 years. A total of 408 subjects were assessed as multidimensional frailty. The prevalence of multidimensional frailty was 43.7%. The centrality indices revealed that ‘difficulty in walking’, ‘difficulty in maintaining balance’, and ‘feeling down’ were the symptoms with the largest strength and expected influence values.
This study primarily utilised network analysis to construct a symptom network of multidimensional frailty among community-dwelling older adults. The findings revealed that difficulty in walking, difficulty in maintaining balance, and feeling down were the most central symptoms.
This study identified the central symptoms of multidimensional frailty in older adults, which may serve as primary intervention targets. Nursing staff could incorporate targeted physical and psychological interventions into person-centred care plans.
This study was reported in accordance with the STROBE guidelines.
No patient or public contribution was involved in this study.