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Rev. bras. geriatr. gerontol ; 18(4): 921-926, Oct.-Dec. 2015. graf
Article in Portuguese | LILACS | ID: lil-770472

ABSTRACT

Objectives : To analyze the accuracy of the 2 minute step test in the diagnosis of the normal functional capacity (FC) of hypertensive elderly individuals or hypertensive elderly individuals with other associated chronic conditions (ACC). Methods : An observational diagnosis type study of 101 subjects, 41 of whom were hypertensive and 60 of whom were normotensive, was carried out. Receiver Operating Characteristic curves (ROC) were constructed based on the normal FC variable. Results : For hypertensive patients, the 2MST, with an under the ROC curve area of 0.7 (95% CI: 0.50 to 0.87, p = 0.04), proved to be accurate at diagnosing FC. Among hypertensive individuals with an elevation of 69, sensitivity of 80% and specificity of 54% were observed. The 2MST was accurate at predicting normal FC among hypertensive patients with ACC, with an under the ROC curve area of 0.88 (95% CI: 0.69 to 1.00, p= 0.02). With an elevation of 65 the sensitivity was 83% and the specificity was 67%. Conclusions : The 2MST revealed good sensitivity and specificity when assessing the FC of elderly hypertensive individuals and elderly hypertensive patients with ACC, which was not the case among normotensive elderly persons.


Objetivos : Analisar a acurácia do teste de marcha estacionária de 2 minutos (TME2') em diagnosticar a capacidade funcional (CF) normal para indivíduos idosos hipertensos ou idosos hipertensos com outras condições crônicas associadas (CCA). Método : Estudo transversal, observacional do tipo diagnóstico, com 101 sujeitos, sendo 41 hipertensos e 60 normotensos. Foi construído curvas de Receiver Operating Characteristic (ROC), tendo como variável de estado a CF normal. Resultados : Para os hipertensos, o TME2', com área sob a curva ROC de 0,7 (IC95%: 0,50 a 0,87; p=0,04), mostrou-se ser acurada em diagnosticar a CF. Entre hipertensos em 69 elevações, observou-se uma sensibilidade de 80% e especificidade de 54%. Para os hipertensos com CCA, observamos acurácia do TME2' em predizer CF normal, com área sob a curva ROC de 0,88 (IC95%: 0,69 a 1,00; p=0,02). Em 65 elevações, obteve sensibilidade de 83% e especificidade de 67%. Conclusões : O TME2' mostrou boa sensibilidade e especificidade para avaliar a CF de idosos hipertensos e hipertensos com CCA, o que não ocorreu entre os idosos normotensos.

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