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Outline
To investigate the dynamic trajectories of cognitive function and its influencing factors among elderly populations relocated through poverty alleviation resettlement programs.
A multistage stratified sampling approach was used to select 740 elderly individuals from 24 resettlement sites across four cities and eight counties in Shanxi Province for three rounds of follow-up surveys. Latent growth mixture models (LGMM) identified cognitive trajectory categories, and multivariable logistic regression analyzed influencing factors.
The prevalence of cognitive impairment was 22.6%, with an overall upward trend in cognitive scores. LGMM identified two distinct trajectories: a “Peak-high cognitive function group” and a “Valley-low cognitive function group.” Advanced age (OR=2.914, 95% CI: 1.946-4.362), non-marital status (OR=2.551, 95% CI: 1.632-3.985), lack of regular physical exercise (OR=1.952, 95% CI: 1.327-2.873), and obesity (OR=2.652, 95% CI: 1.579-4.452) were significant risk factors for the low cognitive trajectory, while better basic functional ability was a protective factor (OR=0.723, 95% CI: 0.637-0.821).
While cognitive function showed overall improvement in the relocated elderly population, specific risk factors significantly increased the risk of cognitive decline. Recommendations include promoting early cognitive screening, expanding community sports facilities, and implementing family-based social support programs.
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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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