Pulmonary Function, Dyspnea and SGRQ in Patients With COPD

만성 폐쇄성 폐질환자의 폐기능, 주관적인 호흡곤란정도 및 SGRQ와의 상관관계

  • Published : 2009.08.31


The purpose of this study is to compare relationship among pulmonary function, dyspnea, and health-related quality of life in patients with COPD. The instruments were used FEV1(%), the Baseline Dyspnea Index(BDI), the Medical Research Council Scale(MRCS), and the St. George's respiratory questionnaire(SGRQ). Dyspnea of patients with moderate and severe stage were deeper than one of patients with mild stage(BDI F=5.452, p=.007; MRCS F=4.925, p=.011). And health-related quality of life of patients with severe stage were poorer than one of patients with mild stage(F=3.778, p=.030). There were significant, but weak, correlations between scores of the BDI(r=.471), the MRCS(r=-.403), the SGRQ(r=-.476) and FEV1. There were strong correlations between scores of the BDI(r=-.752), the MRCS(r=.645) and the SGRQ. And FEV1 didn't correlated with the BDI, the MRCS, and the SGRQ scores in patient of moderate stage and severe stage. But there were also strong correlations between the BDI(r=-.719), the MRCS(r=.607) and the SGRQ in patient of moderate stage and severe stage. Specially, correlation between the BDI and the SGRQ were higher than one between the MRCS and the SGRQ. In conclusion, Using the BDI for evaluation of the subjective dyspnea with objective pulmonary functional test in patients with COPD, it will able to grasp the health-related quality of life.


COPD;Pulmonary function;Dyspnea;Health related quality


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