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J. bras. pneumol ; 35(4): 318-324, abr. 2009. tab
Article in Portuguese | LILACS | ID: lil-513863

ABSTRACT

OBJETIVO: Comparar dois questionários de avaliação de qualidade de vida-Saint George's Respiratory Questionnaire (SGRQ) e Medical Outcomes Study 36-item Short-Form Health Survey (SF-36)-em pacientes com DPOC quanto às suas propriedades discriminativas e correlacionar seus respectivos domínios com as seguintes variáveis: escore da escala modificada do Medical Research Council; escore do Inventário de Depressão de Beck; escore da escala visual analógica para percepção do estado geral da saúde; escore de Mini-Mental State Examination; e um escore clínico de DPOC criado especialmente para o estudo. MÉTODOS: Foram entrevistados 30 pacientes com DPOC entre os meses de maio e setembro de 2006. Foram comparados e correlacionados os escores totais e os respectivos domínios dos questionários SF-36 e SGRQ. RESULTADOS: Todos os domínios do SF-36 apresentaram correlação estatisticamente significativa com o escore total do SGRQ (r = -0,5 a -0,69; p < 0,01), exceto o domínio dor. O domínio sintomas do SGQR foi o único que apresentou correlações significativas com todas as variáveis (p < 0,05). CONCLUSÕES: A maioria das correlações que seriam esperadas entre o SGRQ e o SF-36 com as demais variáveis foi observada. O SGRQ apresenta melhores propriedades discriminativas em relação ao questionário genérico SF-36, notadamente o domínio sintomas. O SF-36 não é um instrumento adequado para medir o estado afetivo de pacientes com DPOC.


OBJECTIVE: To compare two quality of life questionnaires-the Saint George's Respiratory Questionnaire (SGRQ) and the Medical Outcomes Study 36-item Short-Form Health Survey (SF-36)-in patients with COPD, focusing on the discriminative properties of the questionnaires and correlating their domains with the following variables: Modified Medical Research Council Dyspnea Scale score; Beck Depression Inventory score; visual analog scale general health perception; Mini-Mental State Examination score; and a COPD clinical score developed specifically for the study. METHODS: We interviewed 30 COPD patients between May and September of 2006. For the SF-36 and SGRQ, scores (total and domain) were compared and correlated. RESULTS: With the exception of the pain domain, all of the SF-36 domains correlated significantly with the SGRQ total score (r = -0.5 to -0.69; p < 0.01). Of the SGQR domains, only the symptoms domain correlated significantly with all of the variables studied (p < 0.05). CONCLUSIONS: The majority of the expected correlations between the SGRQ and the SF-36 were observed, as were those expected between the two questionnaires and the other variables studied. The SGRQ, notably the symptoms domain, presented better discriminative properties than did the generic SF-36 questionnaire. The SF-36 is not an appropriate instrument for determining the affective state of COPD patients.


Subject(s)
Female , Humans , Male , Middle Aged , Activities of Daily Living , Pulmonary Disease, Chronic Obstructive/physiopathology , Quality of Life , Surveys and Questionnaires/standards , Disability Evaluation , Depressive Disorder/physiopathology , Dyspnea/physiopathology , Health Status Indicators , Pulmonary Disease, Chronic Obstructive/pathology , Severity of Illness Index , Smoking/adverse effects
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