Prevalence and risk factors of prehypertension among adults in Chongqing city

Objective To investigate the prevalence and risk factors of prehypertension among community adults in Chongqing,so as to provide the scientific basis for prevention and control of hypertension.Methods A questionnaire survey was conducted among 59 264 residents more than 18 years old selected from a district of Chongqing city.The prevalence was calculated and the relevant risk factors were analyzed with logistic regression.Results The prevalence of prehypertension in the adults was 64.72% with higher prevalences in the adults of 35-44 years old(71.11%) and 25-34(70.52% ).Compared to the adults with normal blood pressure,the average age,the rate of smoking,the rate of alcohol drinking,body mass index(BMI),waist circumference(WC) and waist-hip ratio(WHR) were higher in the pre-hypertension group.The results of univariate and multivariate logistic regression suggested that age,smoking,WHR,WC and BMI were potential risk factors of prehypertension.For both men and women,obesity was an importanthigh-risk factors.Conclusion The prevalence of prehypertension in the adults of Chongqing is high.The government and professional institutes should pay attention to health education and promotion on hypertention.