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To explore the relationship between the carbohydrate to fiber ratio (CF) and the risk of type 2 diabetes mellitus (T2DM) among residents in the Ili region of Xinjiang, with the goal of providing a scientific basis for the prevention and control of type 2 diabetes.
The data from the the Xinjiang Multi-Ethnic Cohort in the Ili region was utilized, selecting participants who took part in the baseline survey in 2019 and were followed up in 2020, 2021, and 2022. We calculated the CF for study participants based on dietary survey data. A Cox proportional hazards model was employed to investigate the association between CF and the risk of T2DM. Additionally, restricted cubic splines were used to analyze the dose-response relationship between CF and T2DM risk.
A total of 6 879 participants were included in the study, with a median follow-up time of 37.4 months, during which 543 new cases of type 2 diabetes (T2DM) were identified. Participants were categorized into quartiles based on CF (Cumulative Frequency). After adjusting for potential confounding factors, the risk of developing T2DM in the Q2 and Q3 groups was reduced by 30.0%(HR=0.700, 95% CI: 0.547-0.896) and 29.3% (HR=0.707, 95% CI: 0.553-0.904), respectively, compared to the Q1 group. The use of restricted cubic splines indicated a non-linear U-shaped relationship between CF and the risk of developing T2DM (P<0.05). Stratified analysis revealed that in overweight and obese individuals (BMI≥24 kg/m2), the risk of T2DM in the Q2 and Q3 groups was reduced by 35.7% and 35.4%, respectively, compared to the Q1 group. Among males, the risk of T2DM in the Q2 group was reduced by 31.6% compared to the Q1 group, while in females, the Q3 group showed a reduction of 36.7% compared to the Q1 group. Additionally, in individuals aged under 65 years, the risk of T2DM in the Q2 group was also reduced by 34.5% compared to the Q1 group. No associations were observed in other stratified populations.
A U-shaped relationship exists between CF and the risk of T2DM. Attention should be paid to the CF levels in individuals who are overweight or obese and those under 65 years of age, as there are significant implications for the prevention and management of type 2 diabetes.
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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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