Abstract:

Objective    To investigate the contributions of overweight and obesity to the prevalence rate of diabetes and its other risk factors on the basis of a questionnaire of the diabetes epidemic survey model. Methods    Based on a questionnaire of epidemiological survey, obese and non-obese target populations were enrolled. According to the body mass index(BMI), the participants were divided into 2 groups: group A (BMI≥24kg/m2) and group B (BMI <24kg/m2). The prevalence rate of diabetes and impaired glucose tolerance(IGT) were calculated. Logistic regression analysis was carried out to screen the primary risk factors of diabetes. The score of the variables was determined by β-coefficients, and used to predict the risk of correlation factors. Results    The prevalence rate of diabetes and IGT were 6.7% and 17.5% in group A, and  1.1% and 7.0% in group B, respectively.  Age， family history of diabetes， waist-hip ratio (WHR)， systolic pressure，  pulse， and history of high glucose were singled out as risk factors  in group A. Age， diastolicpressure，family history of diabetes， and history of high glucose were risk factors in group B.  A trend χ2 test yielded a statistical significance (P＜0.001). Conclusion    The prevalence rate of diabetes and IGT were much higher in the overweight and obese population than in the nonobese population. Lifestyle modification can control this factor, it is promising to prevent or delay the development of diabetes mellitus and IGT. Age, blood pressure, family history of diabetes, and history of high blood sugar are all independent risk factors for diabetes.

Key words:  Diabetes mellitus; Overweight; Obesity; Risk factors