Validity and Concordance Between Self-Reported and Clinical Diagnosis of Hypertension Among Elderly Residents in Northeastern Brazil

摘要: BACKGROUND Self-reported information has been used as an easy and quick method to estimate the prevalence of systemic hypertension in populations. However, verification whether self-reports disease are consistent with clinical diagnosis is essential for proper use this information. This study aimed verify validity concordance between self-reported elderly population a city northeastern Brazil. METHODS was cross-sectional population-based study. The diagnosed their distribution according demographic socioeconomic variables were assessed. determined by sensitivity, specificity, positive negative predictive value. RESULTS Overall, 795 patients evaluated (69.1% women). There high among (diagnosed: 75.1%, 95% confidence interval (CI) = 71.1%-77.9%; self-reported: 59.7%, CI 56.3%-63.1%). For hypertension, sensitivity substantial (77.1%), specificity excellent (93.4%), value (97.3%), moderate (57.2%). (kappa 0.59; P < 0.001). CONCLUSIONS Reasonable on observed, which reinforces idea that can be strategy detecting population. because nonachievement excellence reliability measured blood pressure, should carefully considered strategic planning health services.