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J Korean Soc Matern Child Health > Volume 22(1); 2018 > Article
Journal of The Korean Society of Maternal and Child Health 2018;22(1):53-61.
DOI: https://doi.org/10.21896/jksmch.2018.22.1.53    Published online January 31, 2018.
A Validation Study of Child Health-6 Dimension (CH-6D), a Generic Preference-Based Health-Related Quality of Life Measure
Eunjeong Kang1, Gyeorae Han2
1Department of Health Administration and Management, Soonchunhyang University, Asan, Korea
2Department of General Affairs, Cheonan Medican Center, Cheonan
일반적 선호기반 건강관련 삶의 질 도구인Child Health-6 Dimension (CH-6D)의 타당성 연구
강은정1, 한겨레2
1순천향대학교 보건행정경영학과
2천안의료원 총무팀
Correspondence:  Eunjeong Kang,
Email: marchej72@sch.ac.kr
This study aimed to identify the validity of CH-6D, a generic preference-based health-related quality of life measure for children and adolescents.
A group of children were recruited from 3 elementary schools and 3 community child- centers in Cheonan (n=112). Adolescents were recruited nationwide from the panel of high school students provided by Macromilembrain (n=229). The elementary school students completed the survey through self-administration and the high school students completed it on-line through their smart phone. Two kinds of construct validity were tested. First, convergent validity was tested by correlating the CH-6D score with Health Utilities Index (HUI) Mark 2 which was also a utility measure for children and adolescents. Second, known-group validity was tested by testing differences in the CH-6D scores by subjective health status and use of medical services.
The correlation between CH-6D and HUI Mark 2 was statistically significant in both elementary and high school students. The Pearson correlation coefficients for the elementary and high school samples were .52 (p<0.0001) and .66 (p<.0001), respectively. Results of a one-way ANOVA showed that better the subjective health status, the higher was the CH-6D score. The results of the t-tests showed that the CH-6D score was significantly lower in those who had used medical service in the previous two weeks than in those who had not used it for both elementary and high school samples.
CH-6D was found to have convergent validity and known-group validity for both elementary and high school students. This shows the potential validity of CH-6D for clinical and economic research in children and adolescents.
Key Words: children, adolescents, quality of life, patient preference, validation studies

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