• Raitany Costa Almeida, Diego Jordão Lino Dias, Karime Tuyane Pinheiro Deguchi, Carlos Henrique Spesia, and Otavio Rizzi Coelho.
• Department of Internal Medicine, School of Medical Sciences, State University of Campinas (UNICAMP) , Sao Paulo , Brazil.
• Postgrad Med. 2015 Jan 1;127(1):66-72.

IntroductionHypertension (HTN) is a preventable cause of cardiovascular morbidity and mortality.ObjectivesTo compare the prevalence, awareness, treatment, and control of HTN among urban and riverside populations in Porto Velho, Amazon region.MethodsWe conducted a cross-sectional study between July and December 2013 based on a household survey of individuals aged 35-80 years. Interviews by using a standardized questionnaire, and blood pressure (BP), weight, height, and waist circumference measurements were performed. HTN was defined when individuals reported having the disease, received antihypertensive medications, or had a systolic BP ≥ 140 mm Hg or diastolic BP ≥ 90 mm Hg. Awareness was based on self-reports and the use of antihypertensive medications. Control was defined as a BP ≤ 140/90 mm Hg.ResultsAmong the 1410 participants, 750 (53.19%) had HTN and 473 (63.06%) had diagnosis awareness, of whom 404 (85.41%) received pharmacological treatment but with low control rate. The prevalence and treatment rates were higher in the urban areas (55.48% vs. 48.87% [p = 0.02] and 61.25% vs. 52.30% [p < 0.01], respectively). HTN awareness was higher in the riverside area (61.05% vs. 67.36% ; p < 0.01), but the control rates showed no statistically significant difference (22.11% vs. 23.43% ; p = 0.69).ConclusionHTN prevalence was higher in the urban population than in the riverside population. Of the hypertensive individuals in both areas, <25% had controlled HTN. Comprehensive public health measures are needed to improve the prevention and treatment of systemic arterial HTN and prevent other cardiovascular diseases.

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