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To explore the effects of self-rated health and self-care ability, as well as their interaction, on depression symptoms in the elderly.
Based on data from the 2020 China Health and Retirement Longitudinal Study, relevant data from 8 948 individuals aged 65 and above were collected. Statistical analyses were conducted using chi-square tests and multivariate logistic regression, followed by interaction analysis using an additive model.
Among the elderly, 3 616 (40.41%) exhibited depression symptoms. After adjusting for gender, age, education level, marital status, living area, exercise habits, and sleep conditions, the regression model indicated that self-rated health (OR=2.60, 95%CI: 2.34-2.89) and self-care ability (OR=2.32, 95%CI: 2.10-2.56) were independent risk factors for depression symptoms in the elderly (P<0.001). The interaction analysis revealed a synergistic additive interaction between self-rated health and self-care ability (OR=5.98, 95%CI: 5.27-6.79),with the excess relative risk, attributable proportion of interaction, and interaction index being 1.92 (95%CI: 1.65-2.71), 0.32(95%CI: 0.21-0.41), and 1.63 (95%CI: 1.34-1.97), respectively.
Poor self-rated health and impaired self-care ability both increase the risk of depression in the elderly, and there is a synergistic additive interaction between the two. Efforts to prevent and treat depression in the elderly should focus on improving their self-rated health and self-care ability.
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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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