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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  ;  Young Sam Kim  ;  Joon Chang  ;  Se Kyu Kim  ;  Young Ae Kang  ;  Moo Suk Park  ;  Ji Ye Jung  ;  Eun Young Kim  ;  Kyung Soo Chung 
 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) ; 김세규(Kim, Se Kyu) ; 김송이(Kim, Song Yi) ; 김영삼(Kim, Young Sam) ; 김은영(Kim, Eun Young) ; 박무석(Park, Moo Suk) ; 장준(Chang, Joon) ; 정경수(Jung, Kyung Soo) ; 정지예(Jung, Ji Ye) ; 홍지영(Hong , Ji Young)
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