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J Clin Epidemiol. 2002 Jan;55(1):67-76.

Reliability and validity of comprehensive health status measures in children: The Child Health Questionnaire in relation to the Health Utilities Index.

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1
Department of Public Health, Erasmus University, P.O. Box 1738, 3000 DR, Rotterdam, The Netherlands. raat@mgz.fgg.eur.nl

Abstract

This study assesses the feasibility, reliability and validity of the Child Health Questionnaire-Parent Form (CHQ-PF50), consisting of 11 multi-item scales covering the physical, emotional and social well-being of children. The Health Utilities Index mark 2 (HUI2) was selected for comparison. Parents of 467 Dutch schoolchildren (age 5-13) were sent CHQ and HUI questionnaires. A subgroup of 79 parents of children aged 10-11 were sent a retest after 2 weeks. Feasibility: 78% response with few missing/non-unique CHQ-answers (<1%). Internal consistency: Cronbach's alphas of.39-.96 (mean.72). Item-own scale correlations were higher than item-other scale correlations. Test-retest ICCs were statistically significant for all but two CHQ scales (ICCs.31-.84). Test-retest CHQ-scale means did not show statistically significant differences except for one scale ("Behavior").

VALIDITY:

the CHQ-scales, with one exception, correlated better with predefined parallel HUI domains (ICCs.26-.53), than with non-parallel domains. Six CHQ scales discriminated clearly between children with and without chronic conditions and three scales discriminated between high and low medical consumption. This was at least equivalent to the discriminative ability of the HUI2 in this study. Additional studies of test-retest reliability and responsiveness to change of the CHQ in varied populations are needed. From the present study and literature data on other (clinical) populations we conclude that psychometric properties of CHQ-based health status measurement justify application in pediatric outcome studies, in addition to clinical measures.

PMID:
11781124
[Indexed for MEDLINE]
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