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ORIGINAL RESEARCH article

Front. Public Health
Sec. Aging and Public Health
Volume 12 - 2024 | doi: 10.3389/fpubh.2024.1493533
This article is part of the Research Topic The Open Challenges of Cognitive Frailty: Risk Factors, Neuropsychological Profiles and Psychometric Assessment for Healthy Aging View all 10 articles

Type of the Paper： Original Research Article The relationship between sleep duration and frailty: Findings from the China Health and Retirement Longitudinal Study (CHARLS)

Provisionally accepted
Liyan Huang Liyan Huang 1Xiaofang He Xiaofang He 2Yao Zuo Yao Zuo 3*Hui Yang Hui Yang 4*Lin Zhang Lin Zhang 4*
  • 1 Xuanwu Hospital, Capital Medical University, Beijing, China
  • 2 Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, China
  • 3 Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou Province, China
  • 4 The Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou Province, China

The final, formatted version of the article will be published soon.

    Background: Research investigating the association between sleep duration and the risk of frailty has yielded conflicting results. This study used data from the China Health and Retirement Longitudinal Study (CHARLS) to investigate the association between sleep duration and frailty.Methods: Participants aged 45 and above at baseline were included in this study. Night or total sleep was categorized into three groups: short (<6h), normal (6-9h), and long sleep duration (≥9h). Frailty was measured by a 31-item frailty index (FI). Non-frail participants at baseline were followed up after a 7-year period. The association between sleep duration and FI was examined by linear regression and restricted cubic spline (RCS) analysis. The relationship between sleep duration and the risk of frailty was evaluated using multinomial logistic regression analysis.Results: A total of 10,258/10,250 (night/total sleep duration) participants were included in the cross-sectional study and 4,770/4,768 in the longitudinal study. A negative correlation was identified between the both night and total sleep duration and FI (night: β = -0.830.008, p < 0.001; total: β = -0.66.007, p < 0.001) after adjusting for age, sex, education level, marital status, residence, yearly expenditure, BMI, waist circumference, smoking status, and drinking status in the cross-sectional study. In the longitudinal study, the relationship remained. Short sleep duration increased FI (night: β = 3.590.04, p < 0.001; total: β = 3.740.04, p < 0.001) and the risk of frailty (night: OR [95% confidence interval (

    Keywords: sleep duration, Frailty, Frailty Index, CHARLS, Chinese middle-aged and older adults Abbreviations AIC Akaike information criterion BIC Bayesian information criterion RCS restricted cubic spline

    Received: 09 Sep 2024; Accepted: 04 Dec 2024.

    Copyright: © 2024 Huang, He, Zuo, Yang and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Yao Zuo, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou Province, China
    Hui Yang, The Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou Province, China
    Lin Zhang, The Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou Province, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.