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The Mediating Effect of Sleep Quality on the Relationship Between Frailty and Cognitive Impairment Among Community-Dwelling Older Adults: A Cross-Sectional Study
By Chen L, Liu X, Yao L and 7 others.
Abstract
Aims
To investigate the relationship between physical frailty and cognitive impairment among community-dwelling older adults and the mediating role of sleep quality in that relationship.
Design
Cross-sectional study.
Methods
A convenience sample of 2830 participants aged 60 years and above from Xi'an, China was assessed using the FRAIL scale, Mini-Mental State Examination (MMSE) and Pittsburgh Sleep Quality Index (PSQI). Comprehensive data on sociodemographic and health-related covariates were collected. Statistical analyses included chi-square tests, multivariate binary logistic regression, Spearman's correlation and mediation analysis using PROCESS (Model 4) with 5000 bootstraps.
