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KMID : 1170320150210040097
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Korean Journal of Health Economics and Policy
2015 Volume.21 No. 4 p.97 ~ p.116
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A Valuation of CH-6D, a Generic Health Descriptive System for Children, Using Time-Trade Off
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Han Gyeo-Rae
Kang Eun-Jeong
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Abstract
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The objective of this study was to estimate the preference-based values of the 2,304 types of health states defined by the Child Health-6 Dimension (CH-6D) developed recently in South Korea. The subjects of this study were 173 Seoul dwellers who whose age was between 20 and 60. The subjects evaluated 26 health states using the time trade-off (TTO) method. A random effect model was used to estimate the values of the 2,304 health states. Various interaction variables as well as dummy variables estimating the main effect of each item were included in the model, while the dependent variable was defined as 1-TTO. The optimal model was turned out to be Ea34m1sq+I3m1 of which the mean absolute error (MAE) was 0.0631. Values of 2,304 health states were estimated using this model. Among the four items which had four levels, the regression coefficient of the level four was greatest for ‘playing with friends,’ followed by ‘studying,’ ‘exercising/running,’ and ‘vitality.’ Between the two items with three levels, the regression coefficient of ‘mood’ was greater than ‘pain/discomfort.’ Mean ICC at individual level was 0.835, which was satisfactory. Now that the tariff of the CH-6D is developed, further studies are needed for testing the validity and reliability of the CH6D so that the clinical and policy use of the CH-6D will be enhanced.
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KEYWORD
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CH-6D, preference-based, children, Time Trade-Off, economic evaluation
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