To analyze the associations between the prevalence of hypertension at baseline, demographic variables, risk factors and end organ diseases the Chi-square test will be used for categorical variables and one-way ANOVA for numeric variables. Logistic regression will be used for multivariate analysis. Since BP will be assessed monthly, the mean BP values for each month will be compared by ANOVA for multiple repeated measurements. After the second assessment at baseline to determine how many hypertensive subjects achieved BP control, the McNemar test for paired samples will be used. For all tests, will be considered a level of significance of 5% and a 95% confidence interval (CI).