Abstract: ObjectiveTo identify risk factors of hypertension in Guangzhou and to provide evidences for performing specific prevention and control measures of hyper tension.MethodSubjects aged over 15 years old were sampled through multi-stager andomized sampling.Background information was collected by face-to-face interview and blood pressure(BP), body mass index(BMI)and waist circumference(WC)were measured by physical examination,and serum lipid and blood sugar were detected in laboratory.The relative risk factors were explored through logistic regression analysis.ResultsOf 23 485 subjects,4 034 were found to be with hypertension and the crude hyper tension prevalence rate was 17.2%,of which 19.2% in urban and 14.1% in rural.The prevalence rate of hypertension in urban was significantly higher than thatin rural areas.In urban areas,the major relative risk factors of hypertension were age,occupation,waist circumference,body mass index,family hypertension history,high serum triglycerides and diabetes.In rural areas,the major relative risk factors of hypertension were age,occupation,waist circumference,body mass index,family hypertension history,high serum cholesterol,low high-density lipoprotein and diabetes,and education was a protecting factor.ConclusionRisk factors for hypertension in urban and rural area are different.Hypertension control and prevention should include obesity and diabetes intervention.