Analysis on relationship of overweight and obesity with hypertension and diabetes mellitus among rural residents in midwestern areas of Shandong province, China.

Objective To analyze the relationship of overweight and obesity with hypertension and diabetes mellitus(DM) among rural residents aged 25 yrs in midwestern areas of Shandong province.Methods According to the principle of multi-stage and randomization, a sample of 16 388 rural residents was selected and investigated.All participants were interviewed with standard questionnaire and physically examined on body height, weight, waist circumference and fasting plasma glucose(FPG).Subjects with FPG value ranging from 6.1 to 7.0mmol/L would be re-examined through oral glucose tolerance test(OGTT).The relationship of overweight and obesity with central obesity and NCD was analyzed.Results The crude prevalence of overweight, obesity, central obesity was 35.28%, 15.31%, 40.63%.The crude prevalence of DM and hypertension was 4.27% and 43.80%.With the increasing of waist circumference and BMI, the prevalence of DM and hypertension increased, 2 trend tests were significant(P0.05).By stratified analysis, with the increasing of waist circumference and BMI, the prevalence of hypertension increased, and with the increasing of waist circumference, the prevalence of DM increased(P0.05), but with the increasing of BMI, the prevalence of DM did not increase(P0.05).Multivariate logistic regression analysis confirmed that the risk of hypertension associated with BMI and waist circumference(P0.05), but DM associated with waist circumference only(P0.05).Conclusion Overweight, obesity and central obesity have a close relationship with the prevalence of NCD.So, it is necessary to enhance intervention on overweight, obesity and central obesity.