| 要約: | Abstract Background Diabetes mellitus (DM) is an important public health problem that seriously affects the health of Chinese residents. Exploring the incidence of DM and its influencing factors in Chinese adults could help develop prevention and control strategies and measures. However, there was few national cohort study on DM incidence and its influencing factors in China. Based on the national representative data, we investigated the incidence and influencing factors of DM in Chinese adults. Methods Based on 2010 China Chronic Disease and Risk Factors Surveillance (CCDRFS), a follow-up survey was conducted in 20 monitoring points from ten provinces of China in 2016–2017. Incident cases of DM were identified through questionnaires. Influencing factors for DM were collected at baseline using questionnaires, physical measurements and laboratory tests. Cox regression models were used to analyze the influencing factors of DM. Sensitivity analysis was conducted to confirm the associations between the influencing factors and DM. Results A total of 7048 people were included in this study. During the follow-up period, 699 DM patients were diagnosed (313 males and 386 females), with a total follow-up of 40022.82 person-years. The incidence density of DM was 17.5/1000 person-years. The Cox regression results showed that age 45–59 years (HR = 1.32, 95% CI: 1.10 ~ 1.59) and ≥ 60 years (HR = 1.48, 95% CI: 1.17 ~ 1.88), divorce/widowhood (HR = 1.45, 95% CI: 1.15 ~ 1.82), overweight (overweight with no central obesity: HR = 1.26, 95% CI: 1.03 ~ 1.54; overweight and central obesity: HR = 1.62, 95% CI: 1.34 ~ 1.97), hypertension (HR = 1.35, 95% CI: 1.15 ~ 1.59), hypertriglyceridemia (HR = 1.57, 95% CI: 1.28 ~ 1.91), high LDL-C (HR = 1.20, 95% CI: 1.02 ~ 1.40), sitting > 6 h for men (HR = 1.51, 95% CI: 1.11 ~ 2.06), and family history (HR = 1.55, 95% CI: 1.17 ~ 2.06) were risk factors for DM. Conclusions The incidence of DM for Chinese adults from 10 provinces was 17.5/1000 person-years. Age > 44 years, divorced/widowed, overweight, central obesity, hypertension, dyslipidemia, a sedentary lifestyle and a family history of diabetes were risk factors for DM. Comprehensive preventive measures centered on a healthy diet, adequate physical exercise, and maintaining a healthy weight should be further promoted to prevent diabetes in China.
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