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KMID : 0904520090260010067
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Health and Medical Sociology
2009 Volume.26 No. 1 p.67 ~ p.87
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Decomposition of the Health Concentration Index by Health Dimensions Applied on EQ?5D
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Lee Jun-Hyup
Yoon Byoung-Jun
Jeong Hyoung-Sun
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Abstract
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The concentration index has been widely used as a measure of income related inequality in health. The purpose of the study is to measure income related health inequality in the overall index of the EQ-5D which is one of health-related quality of life measures as well as the contributions from each of its 6 dimensions included dimension of dysfunction. The study used data(N=24,169) collected from the Korean version of the EQ-5D survey of the general Korean population, as a part of the Korea National Health & Nutrition Examination Survey in 2005 and a health value set for the 243 health status of EQ-5D which estimated by Kang et al.(2006).
Regarding income related inequality in health, the overall health concentration index was 0.035, indicating that health is concentrated among higher income groups. The concentration indices for 6 dimensions of the EQ-5D scales varied with each dimension, which was ranged from 0.0106 for dysfunction to 0.0014 for mobility. The result showed that each dimension of the EQ-5D scales did not contribute equally to the overall health inequality. Pain/discomfort and dysfunction contributed 29.8% and 30.3%, respectively, to the total health inequality, which are contrasted with small contributions of mobility(3.9%) or self-care(4.4%).
The study implied that these results should be taking into account in policy deliberation process in order to reduce income related health inequality among South Korean.
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KEYWORD
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Concentration Index, Health Inequality, Health Dimension, QOL
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