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Factors associated with the quality of life of Korean COPD patients as measured by the EQ-5D

 Ji Young Hong  ;  Song Yee Kim  ;  Kyung Soo Chung  ;  Eun Young Kim  ;  Ji Ye Jung  ;  Moo Suk Park  ;  Young Ae Kang  ;  Se Kyu Kim  ;  Joon Chang  ;  Young Sam Kim 
 Quality of Life Research, Vol.24(10) : 2549-2558, 2015 
Journal Title
 Quality of Life Research 
Issue Date
PURPOSE: This study evaluated the health-related quality of life measured using the EuroQol five-dimension questionnaire (EQ-5D) and the degree of airway obstruction in a Korean population using Korea National Health and Nutritional Examination Survey (KNHANES IV-V, 2007-2010) data. METHODS: A cross-sectional analysis examined 2356 subjects (1178 COPD patients, 1178 control subjects) aged ≥40 years and performed reliable spirometry as part of KNHANES IV-V. Baseline EQ-5D visual analog scale (VAS) and EQ-5D utility scores were obtained. A Tobit censored regression model was used to evaluate factors affecting EQ-5D in COPD patients. RESULTS: The EQ-5D VAS and EQ-5D utility scores were significantly different among the COPD severity groups (P < 0.05). The mean EQ-5D VAS scores for patients with mild, moderate, and severe COPD were 73.0 (SD 18.6), 70.8 (19.1), and 60.9 (23.4), respectively. The mean utility scores were 0.90 (0.14) for patients with mild COPD, 0.89 (0.14) for patients with moderate COPD, and 0.84 (0.15) for patients with severe COPD. Factors influencing the EQ-5D utility score in patients with COPD were age, gender, household income, education level, severe airflow obstruction, and comorbidities. CONCLUSIONS: The EQ-5D score could be a useful instrument for evaluating the quality of life of COPD patients in Korea. In Korean COPD patients, the main determinants of EQ-5D scores include older age, female gender, lower household income, lower education level, severe airflow obstruction, and many comorbid diseases.
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1. Journal Papers (연구논문) > 1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실)
Yonsei Authors
강영애(Kang, Young Ae) ORCID logo https://orcid.org/0000-0002-7783-5271
김세규(Kim, Se Kyu)
김송이(Kim, Song Yee) ORCID logo https://orcid.org/0000-0001-8627-486X
김영삼(Kim, Young Sam) ORCID logo https://orcid.org/0000-0001-9656-8482
김은영(Kim, Eun Young)
박무석(Park, Moo Suk) ORCID logo https://orcid.org/0000-0003-0820-7615
장준(Chang, Joon)
정경수(Jung, Kyung Soo) ORCID logo https://orcid.org/0000-0003-1604-8730
정지예(Jung, Ji Ye) ORCID logo https://orcid.org/0000-0003-1589-4142
홍지영(Hong , Ji Young)
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