• J Cardiopulm Rehabil · Jul 2000

    Comparative Study

    Effect of pulmonary rehabilitation on quality of life in patients with COPD: the use of SF-36 summary scores as outcomes measures.

    • R Benzo, P A Flume, D Turner, and M Tempest.
    • Division of Pulmonary and Critical Care Medicine, Medical University of South Carolina, Charleston 29425, USA.
    • J Cardiopulm Rehabil. 2000 Jul 1; 20 (4): 231-4.

    PurposePulmonary rehabilitation (PR) is an accepted therapy for patients with chronic obstructive pulmonary disease (COPD), improving both exercise capacity and quality of life (QOL). Generic measures of QOL have been criticized as being insensitive to detecting the improvement in QOL after PR in contrast to disease-specific instruments. The authors looked at the Medical Outcomes Survey Short Form 36-item questionnaire (SF-36), a generic QOL measure, to detect changes in QOL in COPD patients after completion of PR.MethodsPatients with COPD who participated in a PR program completed the QOL questionnaire before and after completion of PR. Exercise tolerance was assessed by the 6-minute walking test. Quality of life was assessed by the SF-36; the authors calculated its eight dimensions as well as mental (MCS) and physical (PCS) component summary scores.ResultsThe patients realized a significant improvement in exercise tolerance; 6-minute walking test distance increased from 470 +/- 104 m (mean +/- standard deviation) to 536 +/- 133 m (P = 0.0006) after PR. Quality of life also improved in nearly all dimensions and in both summary scores; PCS improved from 26.1 +/- 8.0 before PR to 30.5 +/- 9.0 after PR (P = 0.008) and MCS improved from 27.9 +/- 7.0 before PR to 34.1 +/- 5.0 after PR (P = 0.0002).ConclusionThe SF-36 and its summary scores are sensitive instruments to detect improvement in QOL in COPD patients after PR.

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