Abstract: ObjectiveTo determine the prevalence of hypertension and explore the rdationship among risk faetots of bypertension and their effects on hypertension in Mongolian people.MethodsTotal 32 villages in Kezuohou Banner and Naiman Banner in Inner Mongolia,were selected as study field and residents aged 20 and above were served as study subjects, demographic data and life style including smoking cigarette and alcohol intake were investigated by face to face method,and their blood pressures,height,body weight,waist and hip circumference,were measured by standardized methods,and their blood samples were collected and fasting plasma glucose level.blood lipids and C-reactive protein were examined for all subjects.Common statistics and path analysis were conducted to identify the associations among risk factors and association be.tween risk factors and hypertension.ResultsA total of 2589 subjects,1064 male and 1525 female,were recruited in the study.The crude prevalence of hypertension was 37.39% for all subjects and 45.58% for men 95% confidence interval (Cf)42.56%～48.63% and 31.67% forwomen(95% CI 29.34-34.07%).The path analysis demonstrated age,family history of hypertension,BMI and blcod glucose level had direct effects on hypertension in both sexes(path coefficients respeetively were 0.389,0.309,0.133,0.086 formale and 0.470,0.27,0.281,0.080 for female),and alcohol intake,WHR,dyslipidemia had effects on hypertension only in male(path coefficients were 0.173,0.104,0.154 respectively),and C-reactive protein had effect on hypertension only in female(path coefficient was 0.093).ConclusionThe prevalence of hypertension in male population was higher than that in female in Mongolian people.The risk factors of hypertension orderly were age, family history of hypertension,alcohol intake,dyslipidemia,BMI,WHR and blood glucose level in male population,and age, family history of hypertension,BMI,reactive protein in women.Smoking cigarette was found a negative correlation with BMI,but it had no direct effect on hypertension.