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| Mediating effects of activities of daily living and social participation on depressive symptoms and cognitive function among the elderly |
| WANG Xi, QIAO Tingting
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| School of Health Management, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010110, China |
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Abstract Objective To explore the mediating effects of activities of daily living (ADL) and social participation on depressive symptoms and cognitive function among the elderly, so as to provide the basis for preventing cognitive decline. Methods Basic information, depressive symptoms, cognitive function, ADL, and social participation of the elderly aged 60 and above were collected through the 2020 database of China Health and Retirement Longitudinal Study. The Process 4.3 program was used to analyze the mediating effects of ADL and social participation on depressive symptoms and cognitive function among the elderly. Results A total of 6 722 elderly people were enrolled, including 3 791 males (56.40%) and 2 931 females (43.60%). The mean age was (68.52±6.00) years. The median depressive symptoms score was 7.00 (interquartile range, 9.00) points, with 2 436 individuals (36.24%) having depressive symptoms. The median cognitive function score was 12.50 (interquartile range, 4.50) points. The median ADL score was 0 (interquartile range, 1.00) point, with 2 173 individuals (32.33%) having ADL impairment. The median social participation score was 1.00 (interquartile range, 1.00) point. Mediating effect analysis showed that, after controlling for variables such as age, educational level, and residence, depressive symptoms indirectly negatively affected cognitive function through the independent mediating effects of ADL (β=-0.031, 95%CI: -0.042 to -0.020) and social participation (β=-0.008, 95%CI: -0.011 to -0.004), and negatively affected cognitive function via the chain mediating effects of ADL and social participation (β=-0.002, 95%CI: -0.003 to -0.001). The total mediating effect accounted for 25.79% of the total effect. Conclusion Depressive symptoms may indirectly and negatively affect the cognitive function among the elderly through ADL and social participation.
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Received: 23 December 2024
Revised: 28 April 2025
Published: 23 May 2025
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