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Abstract：
This study aimed to explore the mediating effects of ADL and depression on the relationship between sleep quality and HRQOL among older people in rural China, while also exploring the moderating impact of loneliness. The study gathered data from a household survey conducted among 1587 Chinese rural older adults (mean age = 73.63 years). The collected data was analyzed using SPSS version 23.0 software (IBM, New York, USA) and the PROCESS macro version 4.0 program. The findings indicated a significant correlation between sleep quality, ADL, depression, loneliness and HRQOL. ADL and depression exhibited a chain mediation effect on the relationship between sleep quality and HRQOL. Notably, the association between sleep quality and HRQOL was entirely mediated by ADL and depression. Additionally, loneliness acted as a moderator in the relationship between ADL and HRQOL. The findings of this study suggest that interventions focusing on sleep quality should prioritize strategies for enhancing older adults\' ADL and depression as integral components of promoting older adults\' HRQOL.
摘要：
本研究旨在探讨ADL和抑郁在中国农村老年人睡眠质量和HRQOL之间的中介作用。同时也探索孤独的调节作用。该研究收集了对1587名中国农村老年人（平均年龄=73.63岁）进行的家庭调查数据。使用SPSS23.0版软件(IBM，纽约,美国)和PROCESS宏4.0版程序。研究结果表明睡眠质量之间存在显着相关性，ADL,抑郁症,孤独和HRQOL。ADL和抑郁在睡眠质量与HRQOL之间的关系中表现出连锁中介作用。值得注意的是,睡眠质量和HRQOL之间的关联完全由ADL和抑郁介导.此外,孤独感在ADL和HRQOL之间的关系中起调节作用。这项研究的结果表明，关注睡眠质量的干预措施应优先考虑提高老年人ADL和抑郁症的策略，作为促进老年人HRQOL的组成部分。
