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Cadernos de Saúde Pública

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MOREIRA, Jessica Pronestino de Lima; ALMEIDA, Renan Moritz Varnier Rodrigues de; ROCHA, Nei Carlos dos Santos  and  LUIZ, Ronir Raggio. Prevalence of corrected arterial hypertension based on the self-reported prevalence estimated by the Brazilian National Health Survey. Cad. Saúde Pública [online]. 2020, vol.36, n.1, e00033619.  Epub Jan 20, 2020. ISSN 1678-4464.

The objective was to correct the self-reported prevalence of systemic arterial hypertension (SAH) obtained from the Brazilian National Health Survey (PNS 2013). SAH prevalence estimates were corrected by means of sensitivity/specificity of information. Sensitivity and specificity values from a similar study (same self-report question, age range and gold standard) were used to this end. A sensitivity analysis was also performed, by using the upper and lower limits of confidence intervals as sensitivity and specificity parameters. The corrected prevalence of SAH for Brazil as a whole was 14.5% (self-reported: 22.1%). Women presented a higher rate of self-reported SAH but, after correction, men were found to have a higher prevalence. Among younger women (18-39 age range), the self-reported prevalence was 6.2%, a value that, after correction, dropped to 0.28%. There was not much difference between self-reported and corrected SAH among the elderly (51.1% vs. 49.2%). For certain groups the corrected results were greatly different from the self-reported prevalence, what may severely impact public health policy strategies.

Keywords : Prevalence; Cross-Sectional Studies; Hypertension; Diagnosis; Self Report.

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