Mediation of the frailty index, the relationship between sleep duration and chronic pain in different body regions: insights from the CHARLS cross-sectional study.

ABSTRACT:

Background

Sleep duration and frailty index are knowm to influence chronic pain. However, the manner in which these factors interact to influence chronic pain remains unclear. The present study investigates the link between sleep duration and chronic pain using a cross-sectional design while also examining the potential mediating role of the frailty index.

Methods

This study incorporated 2015 China Health and Retirement Longitudinal Study (CHARLS) data in a cross-sectional design. Multivariate logistic regression was used to assess the link between sleep and chronic pain, and mediation analysis was used to explore the role played by the frailty index.

Results

The study comprised 10,321 individuals who were at least 45 years old, of whom 3,051 had at least one site of

SUBMITTER: Li C 

PROVIDER: S-EPMC12326722 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature