Full
Outline
To explore the relationship between internet use and cognitive function in older adults, and to evaluate the impact of internet use on the predictive output of cognitive impairment risk.
Based on data from the 2020 China Health and Retirement Longitudinal Study (CHARLS), propensity score matching (PSM) was used to control for confounding factors and analyze the effect of internet use on cognitive function in older adults. The XGBoost algorithm was employed to construct a risk prediction model for cognitive impairment, and the area under the receiver operating characteristic curve (AUC) was used to evaluate the predictive performance of the model. The SHapley Additive exPlanations (SHAP) method was applied to interpret the XGBoost model.
A total of 3 685 older adults was included in the study. Propensity score matching using nearest neighbor matching, radius matching, and kernel matching showed that the average treatment effects of internet use on cognitive function were 0.564, 0.580, and 0.594, respectively (P<0.001). The XGBoost prediction model incorporating internet use achieved an AUC of 0.781 (95%CI: 0.761-0.799). SHAP analysis revealed that internet use was a key predictive factor for cognitive impairment in older adults.
Internet use has a positive effect on cognitive function in older adults. The XGBoost-based risk prediction model for cognitive impairment demonstrates high discriminative ability and good interpretability, which may assist in early screening and individualized clinical intervention.
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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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