Full
Outline
To analyze the pathway through which social capital influences anxiety symptoms in patients with type 2 diabetes mellitus（T2DM）and to explore the mediating effect of sleep quality between these variables, thereby providing evidence for intervention strategies.
A total of 1 726 T2DM patients from 10 hospitals in Ningxia, China, were enrolled. Data were collected via face-to-face interviews using the Self-Rating Anxiety（SAS）and the Chinese version of the Social Capital Scale. The Bootstrap procedure was employed to test the mediating effects.
After adjusting for confounders, social capital exhibited a negative correlation with the prevalence of anxiety symptoms（r=-0.12, P<0.001）, sleep quality was negatively correlated with SAS scores（r=-0.32, P<0.001）, while social capital was positively correlated with sleep quality（r=0.07, P<0.05）. Sleep quality exhibited a partial mediating effect between social capital and anxiety symptoms（β=-0.025, 95% CI: -0.042- -0.009）. Age-stratified analysis revealed that in the elderly group, sleep quality demonstrated a significant mediating effect accounting for 29.2% of the total effect（β=-0.049, 95% CI: -0.079- -0.025）, whereas no statistically significant mediation was observed in the non-elderly group（P>0.05）.
Social capital may indirectly alleviate anxiety symptoms in T2DM patients through improving sleep quality, with this mediating pathway being particularly significant in the elderly population. In clinical practice, it is crucial to emphasize the integration of interventions targeting social capital reconstruction（e.g., community mutual-aid network development）and sleep management（e.g., cognitive behavioral therapy）. Particularly for elderly patients, this combined approach may enhance mental health outcomes through synergistic socio-physio-psychological mechanisms.
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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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