Comparing different revisions of the Childhood Health Assessment Questionnaire to reduce the ceiling effect and improve score distribution: Data from a multi-center European cohort study of children with JIA
<p>Abstract</p> <p>Background</p> <p>The original version of the Childhood Health Assessment Questionnaire (CHAQ30orig) suffers from a ceiling effect and hence has reduced clinical validity. The purpose of this study was to evaluate the effect of adding eight more deman...
Main Authors: | , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2010-05-01
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Series: | Pediatric Rheumatology Online Journal |
Online Access: | http://www.ped-rheum.com/content/8/1/16 |