The relationship between sleep duration and activities of daily living (ADL) disability in the Chinese oldest-old: A cross-sectional study

Zhaoping Wang; Xiaolin Ni; Danni Gao; Sihang Fang; Xiuqing Huang; Mingjun Jiang; Qi Zhou; Liang Sun; Xiaoquan Zhu; Huabin Su; Rongqiao Li; Bin Huang; Yuan Lv; Guofang Pang; Caiyou Hu; Ze Yang; Huiping Yuan

doi:10.7717/peerj.14856

The relationship between sleep duration and activities of daily living (ADL) disability in the Chinese oldest-old: A cross-sectional study

PeerJ. 2023 Feb 14:11:e14856. doi: 10.7717/peerj.14856. eCollection 2023.

Authors

Zhaoping Wang¹, Xiaolin Ni¹, Danni Gao^{1

2}, Sihang Fang¹, Xiuqing Huang¹, Mingjun Jiang³, Qi Zhou¹, Liang Sun¹, Xiaoquan Zhu¹, Huabin Su⁴, Rongqiao Li⁴, Bin Huang⁴, Yuan Lv⁴, Guofang Pang⁴, Caiyou Hu⁴, Ze Yang¹, Huiping Yuan^{1

2}

Affiliations

¹ The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China.
² Peking University Fifth School of Clinical Medicine (Beijing Hospital), Beijing, China.
³ Respiratory Department, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Diseases, National Center for Children's Health, Beijing, China.
⁴ Jiangbin Hospital, Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China.

Abstract

Objective: To investigate the relationship between sleep duration and activities of daily living (ADL) disability, and to explore the optimal sleep duration among oldest-old Chinese individuals.

Methods: In this cross-sectional study, 1,798 participants (73.2% female) were recruited from Dongxing and Shanglin in Guangxi Zhuang Autonomous Region, China in 2019. The restricted cubic spline function was used to assess the dose-response relationship between sleep duration and ADL disability, and the odds ratios (ORs) of the associations were estimated by logistic regression models.

Results: The overall prevalence of ADL disability was 63% (64% in females and 58% in males). The prevalence was 71% in the Han population (72% in females and 68% in males), 60% in the Zhuang population (62% in females and 54% in males) and 53% in other ethnic population (53% in females and 53% in males). A nonlinear relationship between sleep duration and ADL disability was observed. Sleep duration of 8-10 hours was associated with the lowest risk of ADL disability. Sleep duration (≥12 hours) was associated with the risk of ADL disability among the oldest-old individuals after adjusting for confounding factors (OR = 1.47, 95% CI [1.02, 2.10], p < 0.05).

Conclusion: Sleep duration more than 12 hours may be associated with an increased risk of ADL disability in the oldest-old individuals, and the optimal sleep duration among this population could be 8-10 h.

Keywords: ADL disability; Oldest-old; Prevalence of ADL disability; Sleep duration.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Activities of Daily Living*
Aged, 80 and over
China / epidemiology
Cross-Sectional Studies
East Asian People
Female
Humans
Male
Sleep Duration*

Grants and funding

This work was supported by the National Key R&D Program of China (2018YFC2000400), the Natural Science Foundation of China (81870552, 81400790, 81872096, 81571385, 91849118, 91849132, 9184910151 and 81672075), the Beijing Hospital Doctoral Scientific Research Foundation (BJ-2018-024), the Beijing Hospital Nova Project (BJ-2018-139), the Non-profit Central Research Institute Fund of Chinese Academy of Medical Sciences (2018RC330003), the CAMS Innovation Fund for Medical Sciences (2018-I2M-1-002); the Priority Union Foundation of Yunnan Provincial Science and Technology Department and the Kunming Medical University (202001AY070001-011). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.