1. Evaluation of health-related quality of life in low-income patients with COPD receiving long-term oxygen therapy.
- Author
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Ferreira CAS, Stelmach R, Feltrin MIZ, Filho WJ, Chiba T, Cukier A, Sant'Anna, Cláudia Adriana, Stelmach, Rafael, Zanetti Feltrin, Maria Ignez, Filho, Wilson Jacob, Chiba, Toshio, and Cukier, Alberto
- Abstract
Study Objective: To assess health-related quality of life (HRQL) in a low-income population of patients with hypoxemia and COPD receiving long-term oxygen therapy (LTOT).Design: Cross-sectional study.Setting: Large, tertiary care, university teaching hospital.Patients or Participants: Thirty-six patients with COPD requiring LTOT (mean age, 63.5 years; mean FEV(1), 32.1% of predicted; PaO(2), 50.2 mm Hg) and 33 control subjects with COPD but no severe hypoxemia (mean age, 63.1 years; FEV(1), 35.7%; PaO(2), 66.5 mm Hg).Interventions: Patients underwent pulmonary function testing to assess physiologic function and the degree of respiratory impairment. A baseline dyspnea index (BDI) was used to determine levels of dyspnea, and a 6-min walk test was performed to evaluate physical performance and exercise capacity. The St. George Respiratory Questionnaire (SGRQ) and the Medical Outcomes Study Short-Form 36-item questionnaire (SF-36) were used to assess health status and HRQL.Measurements and Results: The scores on the SGRQ and SF-36 indicated severe impairment. Patients receiving LTOT showed a trend toward worse scores on most dimensions of the SGRQ and SF-36, but differences between groups were only statistically significant for the physical functioning and social functioning dimensions of the SF-36. Dyspnea, as measured by the BDI, significantly correlated with all questionnaire domains except the SF-36 pain index.Conclusions: The HRQL of these low-income patients with COPD was markedly impaired, with more pronounced impairment in those receiving LTOT. The severity of dyspnea was a significant predictor of various components of quality of life in these patients. [ABSTRACT FROM AUTHOR]- Published
- 2003