因子分析法及受试者工作特征曲线构建4~6岁儿童感觉统合筛查方法

Factor analysis and ROC curve construction of sensory integration screening for children aged 4-6 years

目的研发并验证4~6岁儿童感觉统合的简式筛查方法。方法2017年10月至11月采用分层整群随机抽样的方法,调查936例4~6岁儿童,男476例,女460例。用感觉统合评定量表(幼儿版)测评其感觉统合能力,因子分析提取主要条目构建简式筛查量表,结合受试者工作特征曲线(ROC)下面积确定临界值,进行信效度、灵敏度、特异度等评估。结果4~6岁儿童感觉统合失调率为47.76%。因子分析共提取14个因子,累积贡献率为75.052%。经过方差最大正交旋转后,选择因子载荷矩阵系数≥0.75的条目,构建感觉统合简式筛查量表,具体为原表的13个项目简化为二分类选项。简式筛查量表的灵敏度为82.77%、特异度为80.16%,ROC曲线下面积为0.815。简表的前庭平衡、本体感受、触觉感受、视觉平顺、听觉识别等分表与总表的相关系数分别为0.793、0.372、0.699、0.604、0.482(均P=0.000)。简表与总表的Kappa为0.628(P=0.000)。简表的Cronbach′s Alpha为0.767。结论简式筛查量表将感觉统合评定量表简化为几个主要条目,操作简单,计分便捷,可作为感觉统合失调的初筛手段。

Objective To research, develop and verify of a simple screening path for 4-6 year old children′s sensory integration. Methods Nine hundred and thirty-six children aged 4-6 years were investigated by stratified cluster random sampling from October to November of 2017, of whom 476 were boys and 460 were girls.A sensory integration rating scale (Children′s Edition) was used to assess the sensory integration ability, and the main entry construction profile screening scale was extracted according to the factor analysis, and the critical value was determined in combination with the area under the subject operating characteristic curve(ROC), the reliability, validity, sensitivity and specificity were evaluated. Results The sensory integration disorder rate of 4-6 year old children was 47.76%, and the 14 main factors were extracted by factor analysis, and the cumulative contribution rate was 75.052%.After the maximal orthogonal rotation of variance, the items with factor load matrix coefficient ≥0.75 were selected to construct the simple sensory integration screening scale, which were simplified to 2 classification options from 13 items in the original table.The sensitivity of the simple screening scale was 82.77%, and the specificity was 80.16%, and the area under the ROC curve was 0.815.The correlation coefficients of vestibular balance, proprioception, tactile sensation, visual smoothness and auditory recognition with the summary table were 0.793, 0.372, 0.699, 0.604, 0.482, respectively(all P=0.000). The Kappa of the summary tables and generad table was 0.628 (P=0.000). The Cronbach′s Alpha of the summary table was 0.767. Conclusions The simple screening scale simplifies the sensory integration rating scale into several main items, which is simple to operate and can be used as a primary screening method for sensory integration disorder.