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To explore whether the number of somatic pain sites serves as a mediator between the number of chronic conditions and depressive symptoms in older adults.
Based on data from the 2020 wave of the China Health and Retirement Longitudinal Study (CHARLS), 8 363 participants aged 60 and above were analyzed. The mediating role between variables was examined using Model 4 of the PROCESS 4.0 macro, and the Bootstrap method was applied for validation.
The prevalence of depressive symptoms among older adults reached 41.02%. An increase in both chronic disease count and pain site number was significantly associated with higher levels of depressive symptoms. (r1=0.284, r2=0.350, both P<0.001). A positive correlation was also observed between the number of chronic diseases and the number of pain sites (r3=0.381, P<0.001).The mediation analysis results indicate that the number of pain sites (effect size=0.15, Bootstrap 95%CI: 0.13-0.18) mediated the relationship between the number of chronic diseases and depressive symptoms.
Both the number of chronic diseases and the number of pain sites are important factors influencing depressive symptoms in the elderly, with the number of pain sites playing a partial mediating role between the two. It is recommended to strengthen pain management in the elderly, regularly assess pain status, provide personalized interventions, and incorporate psychological support to enhance the quality of life and promote mental health in elderly individuals.
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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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