Abstract
ABSTRACTQuality of life (QoL) is being recognized as an important outcome when evaluating chronic obstructive pulmonary disease (COPD) patients. This study aims at identifying the relation between QoL parameters and mortality and morbidity in COPD patients by using the St. George Respiratory Questionnaire (SGRQ). In this prospective study, 251 COPD patients as defined by American Thoracic Society (ATS) criteria were included. A total of 218 patients (86.85%) were male and mean age was 65.55 years. A pulmonary function test (PFT) and SGRQ were performed at the beginning, first, and second years. During a two-year follow-up, the first exacerbation day, the number of exacerbations and intubations, the number and duration of hospitalizations, hospitalizations in an intensive care unit, and exitus day were recorded. When the correlation between FEV1, SGRQ scores, and these parameters was investigated, there was significant correlation between these parameters, and this correlation was more significant in SGRQ scores than FEV1 (Pearson correlation test). The activity score of SGRQ was found to be more useful than other scores (Cox regression analysis). Not only PFT but also QoL questionnaires are useful in determining the prognosis of COPD. QoL questionnaires provide a valid and standardized estimate of the overall impact of COPD, and can complement spirometric measurements of baseline assessment of patients in routine practice.
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