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夜间睡眠时间对农村老年人腰背痛与抑郁的中介与调节作用

The Mediating and Regulating Effect of Night Sleep Duration on Low Back Pain and Depression in Rural Old People

Psychology of China / 2025,7(4): 468-475 / 2025-04-30 4 3

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• Authors: 刘恬汀      袁荣      康承越      朱岚     
• Information:

  西南民族大学，成都

• Keywords: Aging; Back pain; Nighttime sleep time; Depression; Regulation analysis 老龄化；腰背痛；夜间睡眠时间；抑郁；调节分析
• Abstract: Objective: To investigate the relationship between nighttime sleep duration and low back pain and depression among rural elderly people in China, and provide evidence for promoting their health. Methods: Based on the China Health and Retirement Longitudinal Study (CHARLS) database, a mediation model was used to analyze the role of nighttime sleep and nap time in the relationship between low back pain and depression. Results: The study found that more than half of the participants were female (56.02%), with depressive symptoms (51.05%) and low back pain (62.54%) being more common. There was a significant gender difference, with significantly higher proportions of men without low back pain and depression than women (p<0.001). Nighttime sleep duration acted as a mediator between low back pain and depression in both the overall and sex-stratified models (95%CI: 0.013 ~ 0.028; 0.003 ~ 0.019; 0.011 ~ 0.035), and gender moderated this mediation path, with a significantly higher indirect effect among women than men. Conclusion: Nighttime sleep duration plays a mediating role in the relationship between low back pain and depression, and gender moderates this effect, with women being more affected. The study provides data support for the treatment and prevention of low back pain and depression. 目的：探讨中国农村老年人夜间睡眠时间与腰背痛和抑郁的关系，为促进其健康提供依据。方法：2024年2月～3月，研究基于中国健康与退休纵向研究（CHARLS）2018年数据，对19752名受访者进行分析，采用双重中介模型分析夜间睡眠和午睡时间在腰背痛与抑郁关系中的作用。结果：研究发现，为女性占比超过半数（56.02%），其中抑郁症状（51.05%）和腰背痛（62.54%）较为常见。性别差异显著，男性无腰背痛和抑郁的比例显著高于女性（p<0.001）。无论总体还是性别分层模型，夜间睡眠时间均在腰背痛与抑郁间起中介作用（95%CI：0.013～0.028；0.003～0.019；0.011～0.035），且性别调节了该中介路径，具体表现为女性的间接效应显著高于男性。结论：夜间睡眠时间在腰背痛与抑郁的关系中起中介作用，且性别调节了该作用，女性影响更强。研究为治疗和预防腰背痛与抑郁提供了数据支持。
• DOI: https://doi.org/10.35534/pc.0704074
• Cite: 刘恬汀, 袁荣, 康承越, 等. (2025). 夜间睡眠时间对农村老年人腰背痛与抑郁的中介与调节作用. 中国心理学前沿, 7 (4), 468-475.