Analysis on prevalence of hypertension and its associated factors among residents over 50 years old in Chongqing City

Objective To understand the prevalence of hypertension and its associated factors among residents over 50 years old in Chongqing and provide the scientific evidence for non-communicable disease prevention and control.Methods 2 240 residents over 50 years old were sampled by multi-stage stratified random sampling.They were interviewed by face-to-face with questionnaire and physical examination.The influencing factors were identified by multivariate Logistic regression analysis model respectively.Results The prevalence was 50.4%(the age-adjusted prevalence was 50.1%),it was significantly different between rural and urban.The prevalence among west area of Chongqing was significantly higher than east area and main city of Chongqing,which were 61.4%,48.1% and 44.5% respectively.The prevalence increased by age.The prevalence of female was higher than that of male,but there was only significant difference among rural.Family history of hypertension was also a risk factor of hypertension.Multivariate Logistic regression analysis results showed that age,low intake of bean produce,family history of hypertension,lack of physical exercise and body mass index(BMI) were independent risk factors of urbanian;age,male,low-level education,high intake of pickle,family history of hypertension,smoking and BMI were independent risk factors of rural population.Conclusions The prevalence of hypertension over 50 years old was high.Age,family history of hypertension and BMI were same risk factors among urban and rural in Chongqing.Among urban,lack of physical exercise and low intake of bean produce were risk factors,while smoking,low-level education and intake of pickle were risk factors among rural.It is urgent to enhance health education,change unhealthy lifestyle and decrease risk factors of hypertension in Chongqing.