Sleep duration and bedtime in relation to depressive symptoms among older adults

CAO Yi; WU Yu; SU Binbin; ZHENG Xiaoying; GUO Shuai

doi:10.16462/j.cnki.zhjbkz.2024.11.002

Volume 28 Issue 11

Nov. 2024

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CAO Yi, WU Yu, SU Binbin, ZHENG Xiaoying, GUO Shuai. Sleep duration and bedtime in relation to depressive symptoms among older adults[J]. CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION, 2024, 28(11): 1250-1256. doi: 10.16462/j.cnki.zhjbkz.2024.11.002

Citation:

CAO Yi, WU Yu, SU Binbin, ZHENG Xiaoying, GUO Shuai. Sleep duration and bedtime in relation to depressive symptoms among older adults[J]. CHINESE JOURNAL OF DISEASE CONTROL & PREVENTION, 2024, 28(11): 1250-1256. doi: 10.16462/j.cnki.zhjbkz.2024.11.002

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Sleep duration and bedtime in relation to depressive symptoms among older adults

doi: 10.16462/j.cnki.zhjbkz.2024.11.002

Department of Population Health and Aging Science, School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100871, China

Funds:

National Key Research and Development Program 2022YFC3600800

Chinese Academy of Medical Sciences Basic Fund-Talent Introduction and Development Project 2023-RC330-01

Population and Aging Health Science Program WH10022023035

Postdoctoral Fellowship Program of China Postdoctoral Science Fundation GZC20240155

Funded by China Postdoctoral Science Foundation 2024M760259

More Information

Corresponding author: ZHENG Xiaoying, E-mail: zhengxiaoying@sph.pumc.edu.cn; GUO Shuai, E-mail: guoshuai@pumc.edu.cn
Received Date: 2024-02-18
Rev Recd Date: 2024-06-09

Available Online: 2024-12-23

Publish Date: 2024-11-10

Abstract

Abstract

Objective To explore the independent and interactive effects of sleep duration and bedtime on depressive symptoms among middle aged and older adults in China, and provide references for the prevention and intervention measures of depressive symptoms. Methods Using data from the 2018 China family panel studies(CFPS), 13 662 individuals aged 50 years and above were selected as the analytical sample. A preliminary exploration of the nonlinear relationships between sleep duration, bedtime, and depressive scores was conducted based on the generalized additive model (GAM). Further analysis of the correlations between sleep duration, bedtime their interaction, and depression symptoms was performed using multivariate logistic regression model, along with subgroup analyses by gender and urban-rural classification. Results 34.83% of middle-aged and older adults in study had depressive symptoms. Sleep duration < 6 hours and abnormal bedtime (earlier than 21:00 or later than 23:00) were independently associated with depressive symptoms. There was an interaction effect between sleep duration and bedtime on the risk of depressive symptoms. Those with abnormal bedtime and sleep duration < 6 hours had the highest risk (OR=1.32, 95% CI: 1.08-1.60). Further subgroup analyses by gender and residence confirmed the above findings. Conclusions Healthcare professionals and caregivers should pay attention to both sleep duration and bedtime among middle-aged and older adults. By implementing effective intervention measures, the occurrence of depressive symptoms can be reduced.
- Depressive symptoms,
- Sleep duration,
- Bedtime,
- Interaction effect

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References(23)

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