Discussion on predictive values and relationship of body mass index (BMI),waist circumference (WC) and waist to height ratio (WHtR) with hypertension among rural Chinese adults in the countryside of Fuxin, Liaoning province.MethodsA population-based sample of 24 360 rural Chinese adults aged≥35 years and free from hypertension at baseline were followed from 2004-2006 to 2008. mean of 28 months of follow-up. The blood pressure measurement and anthropometric indices were investigated by trained doctors.ResultsOver a mean of 28 months of follow-up, A total of 3639 men and 2819 women developed hypertension. After adjusted for age, ethnicity, alcohol drinking, smoking status, family history of hypertension, baseline SBP and DBP Cox-proportional hazards model showed that RR for hypertension incidence corresponding to a 1 SD increase in BMI, WC and WHtR were 1.140,1.079 and 1.087 in women and 1.048,1.065 and 1.058 in men, respectively. Paired homogeneity tests (Wald tests) showed that there was no difference between BMI and the other two indicators in the RR for hypertension incidence in men (P>0.05); BMI is better than WC and WHtR in women.ConclusionsBMI was as strong as central obesity indicators in the prediction of hypertension incidence in men, BMI was stronger than WC and WHtR in women. Obesity and overweight is a major independent risk factor for hypertension. Lifestyle modifications such as healthy diet, and moderate physical activity are advised to prevent these people from hypertension and cerebrovascular disease in rural area of China. |