Better Sleep Better Psychological Well-Being Among Older Adults: Evidence From the Chinese Longitudinal Healthy Longevity Survey (CLHLS).

BACKGROUND

Older adults' psychological well-being is recognized as a public health issue, and many factors may influence it. However, the longitudinal association between sleep quality and psychological well-being among older adults remains insufficiently understood. Therefore, this study aimed to examine the longitudinal association between sleep quality and psychological well-being among Chinese older adults.

METHODS

This study involved 2371 older adults aged 65 years and above who participated in all four waves (2008, 2011, 2014, and 2018) of the Chinese Longitudinal Healthy Longevity Survey (CLHLS). A latent growth model (LGM) was used to examine the longitudinal association between sleep quality and psychological well-being among older adults.

RESULTS

An unconditional quadratic growth curve model showed the best model fit. After controlling for time-invariant and time-varying covariates, better sleep quality was consistently associated with better psychological well-being among older adults (2008: β = 0.159, p < 0.001; 2011: β = 0.193, p < 0.001; 2014: β = 0.207, p < 0.001; 2018: β = 0.266, p < 0.001).

CONCLUSION

This study found that better sleep quality was longitudinally associated with better psychological well-being among Chinese older adults over time. The results suggest that enhanced sleep quality among older adults in China is strongly associated with improved psychological well-being.