The construct validity of the Child Health Utility 9D-DK instrument

Table 2 Correlations between CHU9D¹ dimensions and PedsQL² dimensions

	Worried	Sad	Pain	Tired	Annoyed	Schoolwork Homework	Sleep	Daily routine	Activities	CHU9D utility
Physical Health	0.35	0.38	0.44	0.44	0.34	0.39	0.38	0.39	0.48	0.64 0.62
Psychosocial Health	0.46	0.43	0.34	0.38	0.48	0.44	0.37	0.41	0.46	0.65 0.65
- Emotional function	0.47	0.53	0.38	0.31	0.50	0.41	0.45	0.40	0.41	0.68 0.69
- Social function	0.28	0.31	0.21	0.22	0.38	0. 31	0.21	0.33	0.35	0.44 0.43
- School function	0.33	0.29	0.26	0.38	0.36	0.38	0.26	0.36	0.40	0.51 0.50
PedsQL total score	0.45	0.44	0.40	0.43	0.46	0.45	0.40	0.43	0.49	0.69 0.68

CHU9D Child Health Utility 9 Dimension, PedsQL Pediatric Quality of Life Inventory™ 4.0 Generic Core Scales
The last column shows the CHU9D utility correlations when the adult scoring algorithm (standard gamble-method) was applied, underlined numbers when the adolescent scoring algorithm (best-worst scaling-method) was applied
All Spearman’s correlations are statistically significant (all p values < 0.001). The correlations between like dimensions are indicated in boldface. The three least correlated dimensions are indicated in italic

ISSN: 1477-7525