Pouchot Jacques, Ecosse Emmanuel, Coste Joël, Guillemin Francis
Hôpital Louis Mourier, Colombes, France.
Arthritis Rheum. 2004 Aug 15;51(4):519-26. doi: 10.1002/art.20529.
To determine whether the Childhood Health Assessment Questionnaire (CHAQ) is valid for the comparison of different age subgroups and for longitudinal studies in juvenile idiopathic arthritis (JIA).
A CHAQ was administered to 306 children with JIA. Rasch analyses were used to compare the difficulty of each of the 30 items of the questionnaire for children of 2 age groups (> or =10 years old and <10 years old).
Independent of the physical disability level assessed by the Rasch model, 8 of the 30 items (27%) of the CHAQ were rated significantly different in the 2 age groups. Despite this age-related variation in item difficulty, the impact on the CHAQ disability index using its original scoring system remained low (about 0.25 points on a scale of 0-3).
The difficulty of 8 of 30 items of the CHAQ depends on the respondent's age. Nevertheless, the design of the CHAQ and its scoring system remove most of the expected physical development bias.
确定儿童健康评估问卷（CHAQ）是否适用于比较不同年龄亚组以及用于幼年特发性关节炎（JIA）的纵向研究。
对306例JIA患儿进行CHAQ评估。采用拉施分析比较问卷30项中每项对于2个年龄组（≥10岁和<10岁）儿童的难度。
不考虑拉施模型评估的身体残疾水平，CHAQ的30项中有8项（27%）在2个年龄组中的评分有显著差异。尽管项目难度存在与年龄相关的差异，但使用其原始评分系统对CHAQ残疾指数的影响仍然较低（在0 - 3分的量表上约为0.25分）。
CHAQ的30项中有8项的难度取决于应答者的年龄。然而，CHAQ的设计及其评分系统消除了大部分预期的身体发育偏差。
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