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Outline
To explore the latent classes of social participation among older adults and their impact on cognitive function, providing a reference for improving cognitive function in the elderly.
Using 2018 CHARLS data, this study analyzed 3 577 adults aged ≥60. Cognitive function was assessed with MMSE. Latent class analysis was conducted in Mplus 8.3, and the BCH method was used to examine the effect of social participation patterns on cognition. Multivariate linear regression analyzed the association between participation categories and cognitive function.
Older adults’ social participation was classified into four latent classes: work-oriented [1 507（42.13%）], comprehensively active [176（4.92%）], volunteer-oriented [334（9.34%）], and low-level-social/family [1 560（43.61%）]. These classes differed significantly in age, education, etc.（P<0.05）. Cognitive function differed significantly across classes（χ2=158.689, P<0.05）. Multivariate linear regression showed the comprehensively active type had a protective effect on cognition（P<0.05）.
This study finds older adults’ social participation types are closely linked to cognitive function, with the comprehensively active group showing the highest levels. Types differ in demographic characteristics and significantly affect cognition. Policymakers and community workers should design and promote diverse, personalized activities based on older adults’ needs and conditions.
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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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