Bidirectional and dynamic relationships between social isolation and frailty among older adults in China

OBJECTIVE: This study aimed to investigate the bidirectional and dynamic relationships between Social Isolation (SI) and frailty among older adults in China. METHODS: Using data from the Chinese Longitudinal Healthy Longevity Survey (CLHLS), this study utilized a Generalized Cross-Lagged Model (GCLM) to examine the temporal interrelationships between SI and frailty among individuals aged 65 years and older. RESULTS: The findings revealed significant bidirectional associations between SI and frailty among older adults in China. The GCLM identified strong temporal dynamics in the relationships between SI and frailty, with both effects increasing and showing a "cumulative disadvantage" effect as older adults aged. CONCLUSION: This study underscores the significance of tailored interventions aimed at mitigating both SI and frailty among older adults in China, thus addressing the bidirectional impact. The findings emphasize the necessity for early intervention strategies to counteract the cumulative disadvantages associated with SI and frailty in later-life outcomes.