Bidirectional relationship between nighttime sleep duration and depressed mood among elderly people in China： an empirical study based on CHARLS
10.11886/scjsws20250430003
- VernacularTitle:中国老年人夜间睡眠时长与抑郁情绪的关系——基于CHARLS追踪调查数据的实证研究
- Author:
Dan ZHANG
1
;
Min YIN
1
;
Yanbo WANG
2
;
Zheng LI
3
Author Information
1. School of Nursing， Lanzhou University， Lanzhou 730010， China
2. School of Public Health， Tianjin Medical University， Tianjin 300203， China
3. School of Nursing， Peking Union Medical College， Chinese Academy of Medical Sciences， Beijing 100144， China
- Publication Type:Journal Article
- Keywords:
Elderly Chinese people;
Nighttime sleep duration;
Depressed mood;
Cross-lagged path analysis;
Bidirectional relationship
- From:
Sichuan Mental Health
2025;38(5):457-464
- CountryChina
- Language:Chinese
-
Abstract:
Depressed mood and sleep problems are prevalent among elderly people and tend to form a vicious cycle that seriously affects their quality of life and physical health. However， most of the existing studies rely on cross-sectional design， limiting the ability to clarify their predictive relationship and causal direction. ObjectiveTo explore the longitudinal association between nighttime sleep duration and depressed mood among the elderly in China over a 10-year period， providing scientific evidence for developing sleep-related interventions and depression prevention strategies tailored to the elderly. MethodsBased on nationally representative data from the China Health and Retirement Longitudinal Study （CHARLS） between 2011 and 2020， a sample of 5 954 elderly peolpe who had completed the baseline survey and at least one follow-up survey in 2011 was selected. Depressed mood was assessed using the 10-item Centre for Epidemiological Studies Depression Scale （CESD-10）. Basic information including nighttime sleep duration， was collected through a self-designed questionnaire. Cross-lagged path analysis （CLPA） model was employed to analyze the bidirectional relationship between nighttime sleep duration and depressed mood among the ederly. ResultsThe nighttime sleep duration in elderly people showed a negative correlation with CESD-10 scores at both baseline and the last follow-up （r=-0.299， -0.247， P<0.01）. The results of the CLPA model showed that the baseline CESD-10 scores negatively predicted nighttime sleep duration at the last follow-up （β=-0.100， P<0.01）， while baseline nighttime sleep duration also predicted CESD-10 scores at the last follow-up （β=-0.041， P<0.01）. ConclusionDepressed mood in elderly people exhibits a longitudinal association with nighttime sleep duration， demonstrating a bidirectional negative predictive relationship between the two factors.
