Ryll Ulrike C, Eliasson Ann-Christin, Bastiaenen Carolien Hg, Green Dido
a Department of Women's and Children's Health , Karolinska Institutet , Stockholm , Sweden.
b Caphri Research Institute, Program Functioning and Rehabilitation, Department of Epidemiology , Maastricht University , Maastricht , The Netherlands.
Phys Occup Ther Pediatr. 2019;39(2):168-180. doi: 10.1080/01942638.2018.1438554. Epub 2018 Feb 26.
To explore the validity of change scores of the Children's Hand-use Experience Questionnaire (CHEQ).
Analysis of the CHEQ included 44 children (15 girls) between 6-16 years (median 9.0; IQR 8-11) with unilateral cerebral palsy, with baseline and post- (two-week intensive) intervention assessments using the Goal Attainment Scale (GAS) as external anchor for change. Hypotheses on the magnitude of expected change were formulated and correlation coefficients and effect sizes calculated. Receiver operating curve analysis was performed and the area under the curve (AUC) calculated to investigate the ability of CHEQ to discriminate between improvement and non-improvement according to GAS.
All hypotheses about the magnitude of change were confirmed supporting longitudinal validity of CHEQ scales to measure change in the perception of bimanual performance. AUCs for the Grasp efficacy and the Time utilization were slightly below, and for the Feeling bothered slightly above the threshold. The latter one accurately discriminating between children that improved and did not improve according to the GAS.
Evidence was found that CHEQ scales capture change in bimanual performance but with limited accuracy for two out of three scales. The validity of CHEQ change scores needs to be further explored in a wider population.
探讨儿童手部使用经验问卷（CHEQ）变化得分的有效性。
对44名6至16岁（中位数9.0；四分位间距8至11）的单侧脑瘫儿童的CHEQ进行分析，使用目标达成量表（GAS）作为变化的外部参照，进行基线及干预后（为期两周的强化干预）评估。制定关于预期变化幅度的假设，并计算相关系数和效应量。进行受试者工作特征曲线分析，并计算曲线下面积（AUC），以研究CHEQ根据GAS区分改善与未改善情况的能力。
所有关于变化幅度的假设均得到证实，支持CHEQ量表在测量双手操作感知变化方面的纵向有效性。抓握效能和时间利用的AUC略低于阈值，而感觉困扰的AUC略高于阈值。后者能够准确区分根据GAS改善和未改善的儿童。
有证据表明CHEQ量表能够反映双手操作的变化，但三个量表中有两个的准确性有限。CHEQ变化得分的有效性需要在更广泛的人群中进一步探索。
