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To explore the mediating effect of the number of chronic diseases and nighttime sleep duration on the relationship between somatic pain and depression in older adults, so as to provide reference for the improvement of older adults’ mental health.
Data from the China Health and Aged Care Tracking Survey (CHARLS) 2020 were used to explore the correlation between somatic pain, the number of chronic diseases, the number of hours of sleep at night, and depression among older adults by using Spearman’s rank correlation analysis, and the chain mediation effect was analyzed by using the Bootstrap method in the Process 4.1 program of SPSS.
A total of 4 109 study participants were included in this study, in which the depression detection rate was 46.90% and pain prevalence was 64.37%. The direct effect of somatic pain on depression was significant (β=0.480, 95%CI:0.429 to 0.532), the separate mediated effect of the number of chronic disease prevalence was significant (β=0.042,95%CI:0.030 to 0.056), and the separate mediated effect of the length of nocturnal sleep was significant (β=0.054, 95%CI:0.042 to 0.067). The chain-mediated effect of the number of chronic diseases and nighttime sleep duration was significant (β=0.002, 95%CI:0.001 to 0.004).
The number of chronic diseases and hours of nighttime sleep mediated the separate and chain-mediated effects between somatic pain and depression in older adults. Therefore, it is recommended to improve the geriatric health policy, incorporate geriatric pain assessment and management into the scope of basic public health services, focus on chronic disease management and sleep regulation in older adults, and realize the forward movement of depression prevention.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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