Hypertension prevalence and its associated risk factors in adults: a population-based study in Pelotas

Juvenal Soares Dias da Costa Franklin Correa Barcellos Marcelo Leal Sclowitz Iândora Krolow Timm Sclowitz Marcelo Castanheira Maria Teresa Anselmo Olinto Ana Maria Baptista Menezes Denise Petrucci Gigante Silvia Macedo Sandra Costa Fuchs About the authors

OBJECTIVE: To determine hypertension prevalence and its associated risk factors. METHODS: A cross-sectional, population-based study of people ages 20 to 69 living in the urban area of Pelotas, Rio Grande do Sul, Brazil, was conducted. The dependent variable systemic hypertension was defined as blood pressure >160 x 95 mm Hg (average of two readings) or current use of antihypertensive drugs. RESULTS: Among the 1,968 subjects enrolled in the study, hypertension prevalence was 23.6% (95% CI 21.6 to 25.3). A Poisson regression model was used to control confounding factors effects. The following variables remained statistically significant in the final model: family income, age, skin color, gender, family history of hypertension, extra salt intake, and body mass index. CONCLUSION: Compared with a similar study undertaken in 1992, hypertension prevalence increased, particularly in the younger groups.

Hypertension; prevalence; risk factors

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