Deriving the PedsUtil health state classification system to measure health utilities for pediatric populations based on the PedsQL: a confirmatory factor analysis

Kim DeLuca, Ellen; Dalziel, Kim; Wittenberg, Eve; Rose, Angela M.; Prosser, Lisa A.

doi:10.1186/s12955-024-02300-8

Table 4 Confirmatory factor analysis fit indices for models A-D across subgroups

From: Deriving the PedsUtil health state classification system to measure health utilities for pediatric populations based on the PedsQL: a confirmatory factor analysis

Fit Indices	Children with Special Healthcare Needs								Typically Functioning Children
Fit Indices	2/3 years^a	4/5 years	6/7 years	8/9 years	10/11 years	12/13 years	14/15 years	16/17 years	2/3 years^a	4/5 years	6/7 years	8/9 years	10/11 years	12/13 years	14/15 years	16/17 years
Model A
RMSEA	0.087	0.107	0.113	0.112	0.117	0.112	0.118	0.109	0.071	0.092	0.101	0.098	0.107	0.094	0.109	0.103
RMSEA 90% CI	0.080–0.093	0.104–0.111	0.110–0.116	0.109–0.115	0.114–0.120	0.109–0.115	0.114–0.122	0.105–0.114	0.068–0.074	0.091–0.094	0.099–0.102	0.097-0.100	0.106–0.108	0.092–0.095	0.107–0.111	0.101–0.105
CFI	0.907	0.881	0.885	0.879	0.892	0.898	0.909	0.908	0.918	0.887	0.902	0.889	0.896	0.906	0.922	0.902
TLI	0.892	0.863	0.870	0.864	0.878	0.885	0.897	0.896	0.905	0.870	0.890	0.875	0.882	0.894	0.912	0.890
Model B
RMSEA	–	0.082	0.101	0.098	0.110	0.104	0.109	0.102	–	0.067	0.089	0.088	0.100	0.085	0.104	0.098
RMSEA 90% CI	–	0.079–0.086	0.098–0.104	0.095–0.101	0.107–0.113	0.101–0.107	0.105–0.113	0.097–0.106	–	0.066–0.069	0.088–0.091	0.087–0.090	0.098–0.101	0.083–0.087	0.102–0.106	0.095-0.100
CFI	–	0.912	0.910	0.908	0.906	0.914	0.923	0.921	–	0.929	0.925	0.913	0.911	0.924	0.931	0.914
TLI	–	0.899	0.897	0.895	0.892	0.901	0.912	0.909	–	0.917	0.914	0.900	0.898	0.913	0.920	0.901
Model C
RMSEA	–	0.109	0.110	0.111	0.111	0.104	0.109	0.099	–	0.093	0.096	0.094	0.100	0.087	0.100	0.088
RMSEA 90% CI	–	0.105–0.113	0.107–0.113	0.108–0.114	0.108–0.115	0.100-0.107	0.104–0.113	0.091-0.100	–	0.092–0.095	0.094–0.096	0.093–0.096	0.098–0.102	0.085–0.089	0.098–0.102	0.085–0.090
CFI	–	0.898	0.909	0.898	0.917	0.925	0.934	0.930	–	0.901	0.925	0.912	0.923	0.929	0.945	0.937
TLI	–	0.881	0.896	0.882	0.904	0.913	0.925	0.920	–	0.885	0.913	0.899	0.912	0.919	0.937	0.928
Model D
RMSEA	0.077	0.072	0.093	0.094	0.102	0.093	0.096	0.089	0.061	0.058	0.079	0.080	0.089	0.075	0.092	0.078
RMSEA 90% CI	0.070–0.085	0.068–0.076	0.089–0.096	0.090–0.097	0.098–0.105	0.090–0.097	0.092–0.101	0.084–0.094	0.057–0.064	0.057–0.060	0.077–0.080	0.078–0.081	0.087–0.090	0.073–0.076	0.090–0.095	0.076–0.081
CFI	0.937	0.942	0.937	0.929	0.932	0.941	0.950	0.948	0.947	0.953	0.950	0.939	0.941	0.949	0.954	0.951
TLI	0.925	0.932	0.926	0.916	0.920	0.930	0.941	0.939	0.937	0.945	0.942	0.928	0.930	0.940	0.946	0.943

Abbreviations RMSEA root mean square error of approximation; CFI comparative fit index; TLI Tucker-Lewis index; CI confidence interval
^a For children aged 2–3 years, the measurement models for Models A and B and for Models C and D were the same because only 1 School Functioning item was included in the LSAC dataset

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