Department of Pediatric Physical Therapy & Exercise Physiology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
Pediatr Rheumatol Online J. 2008 Sep 11;6:14. doi: 10.1186/1546-0096-6-14.
Evaluating the original, and the revised version of the Dutch Childhood Health Assessment Questionnaire (CHAQ). To explore the effect of different score calculation methods and eight more challenging items as proposed by Lam et al. (2004) on the score distribution in a population of patients with Juvenile Idiopathic Arthritis (JIA).
Two convenience samples of 59 and 31 children with JIA were studied. Box-and-whisker plots and the Kolmogorov-Smirnov (K-S) one-sample test of normality were used, to explore the score distributions.
The results of this study confirm a ceiling effect when using the original CHAQ-30 with either score calculation method. The original CHAQ with the added eight more challenging items and the "mean" score calculation method, as well as the revised CHAQ showed less ceiling effect.
The original CHAQ-38 with the "mean" score calculation method as well as the revised CHAQ are a possible alternative for future studies. However, there is a need for further prospective studies to improve the CHAQ and to support our findings.
评估荷兰儿童健康评估问卷（CHAQ）的原始版本和修订版本。探讨不同评分计算方法以及 Lam 等人提出的 8 项更具挑战性的项目对幼年特发性关节炎（JIA）患者人群中评分分布的影响。
研究了两个便利样本，共 59 名和 31 名 JIA 患儿。使用箱线图和 Kolmogorov-Smirnov（K-S）单样本正态性检验来探索评分分布。
本研究结果证实，使用原始 CHAQ-30 及其任意评分计算方法时存在天花板效应。原始 CHAQ 添加了 8 项更具挑战性的项目和“平均值”评分计算方法，以及修订后的 CHAQ 显示出的天花板效应较小。
原始 CHAQ-38 采用“平均值”评分计算方法以及修订后的 CHAQ 可能是未来研究的一种替代选择。然而，需要进一步进行前瞻性研究来改进 CHAQ，并支持我们的发现。
