Investigation Of Prevalence Of Hypertension And Risk Factors In Changdu District Of Tibet

Background:Investigation of global disease burden showed50%of cardiovascular disease was induced by hypertension in2000. Hypertension is the majority public health problem in not only the developed country but also the developing country. There are25%～35%of adult suffer from hypertension, which reaches972million. In our country, above40years old people, cardiovascular and cerebral vascular diseases is the first and third reason of death, and the most important risk factor is hypertension.In Tibet, the prevalence of hypertension is not clear, as well the effect of altitude on blood pressure. In recent20years, there was not etiologic investigation in Tibet. The last result showed the prevalence of hypertension is highest in Tibet in china. The recent studys showed the prevalence of hypertension is17.90%～41..0%with big difference. The investigation of hypertension in Tibet is needed to guide the public health policy formulation.Objectives:1.To investigates the prevalence of hypertension and awareness rate, rate of treatment and control rate in Tibet.2. To discuss the risk factor of hypertension in Tibet.Methods:From2010, Sep to2011, Jun,1859audits were enrolled in changdu district in Tibet, who was taken questionnaires and physical examination. We used Excel to log data, and SPSS software to complete statistics.Results:The prevalence of hypertension is63.4%, which is higher than average of China, and the awareness rate, rate of treatment and control rate is41.9%,19.2%and7.4%, respectively. Blood pressure of Tibetan is higher than that of Han, and prevalence is1.96folds of Han in Tibentan. Prevalence from lowest to highest according to the place of residence is temple, urban and rural, respectively. Menopause can cause risk of hypertension to1.52folds of menstruating. Logistic regression shows the influencing factors of systolic blood pressure include altitude (p=0.001), age (p<0.001), vocation (p<0.001), diet (p=0.001), and BMI (p<0.001); influencing factors of diastolic blood pressure include place of resicence (p=0.004), age(p<0.001), vocation(p<0.001), diet (p=0.002), and BMI(p<0.001); influencing factors of pulse pressure include altitude (p<0.001), age (p<0.001), vocation (p<0.001), diet (p=0.001) and BMI (p<0.001); influencing factors of mean arterial pressure include altitude (p=0.034), age (p<0.001), vocation (p<0.001), and BMI (p<0.001). The influencing factor of prevalence of hypertension include altitude (p<0.001), gender (p=0.002), vocation (p=0.012), diet (p=0.04), BMI (p<0.001) and age (p<0.001).Conclusions:The prevalence of hypertension is higher than that of average of China. The gender, age, BMI, altitude, diet and vocation are risk factor of hypertension in Tibet.