Epidemiological Study of Prevalence and Risk Factors for Hypertension in Urban Areas of Chengdu City

Objective To investigate the prevalence of hypertension and to find the cardiovascular risk factors in the urban residents of Chengdu city. Methods By cluster sampling, a population of 994 inhabitants were selected from 14 urban communities in Chengdu city between February and October 2010. They were 35-70 years old and had resided in the area for over 2 years. Hypertension questionnaire was used and physical examinations were taken to investigate. The definition of hypertension was determined by the Guidelines of Hypertension Prevention and Control made by National Revision Committee in 2010. Logistic regression model was used to define the risk factors for hypertension. ResultsThe prevalence rate of hypertension was 44.87%, and the standardized prevalence rate was 39.21%(male: 41.07%, female: 38.20%). The difference of prevalence rate between males and females was not significant(P 0.05). The prevalence rate of hypertension increased significantly with age. By multi-factor logistic regression analysis, age(OR=1.103, P 0.001), serum uric acid(OR=1.003, P=0.001), heart rate(OR=1.014, P=0.027), and waist circumference(OR=1.624, P 0.001) were the risk factors for hypertension. Conclusion The prevalence rate of hypertension is high in urban communities of Chengdu city, and age, serum uric acid, heart rate, and waist circumference are the risk factors for hypertension.