Zhao Jiang-Li, Chen Pei-Ming, Ng Shamay S M, Mao Yu-Rong, Huang Dong-Feng
Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China.
Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China.
Front Hum Neurosci. 2023 Jun 1;17:977078. doi: 10.3389/fnhum.2023.977078. eCollection 2023.
This study aimed to translate the English version of the Short Orientation-Memory-Concentration (SOMC) test into a Chinese version, denoted the C-SOMC test, and to investigate the concurrent validity, sensitivity, and specificity of the C-SOMC test against a longer and widely used screening instrument in people with a first cerebral infarction.
An expert group translated the SOMC test into Chinese using a forward-backward procedure. Eighty-six participants (67 men and 19 women, mean age = 59.31 ± 11.57 years) with a first cerebral infarction were enrolled in this study. The validity of the C-SOMC test was determined using the Chinese version of Mini Mental State Examination (C-MMSE) as the comparator. Concurrent validity was determined using Spearman's rank correlation coefficients. Univariate linear regression was used to analyze items' abilities to predict the total score on the C-SOMC test and the C-MMSE score. The area under the receiver operating characteristic curve (AUC) was used to demonstrate the sensitivity and specificity of the C-SOMC test at various cut-off values distinguishing cognitive impairment from normal cognition.
The total score for the C-SOMC test and the score for item 1 on this test exhibited moderate-to-good correlations with the C-MMSE score, with respective ρ-values of 0.636 and 0.565 ( 0.001). The scores for each of items 2, 4, 5, 6, and 7 yielded fair correlations with C-MMSE score, with ρ-value from 0.272 to 0.495 ( 0.05). The total score on the C-SOMC test and the item score were good predictors (adjusted = 0.049 to 0.615) of the C-MMSE score, and six items were good predictors (adjusted = 0.134 to 0.795) of the total score. The AUC was 0.92 for the C-SOMC test. A cut-off of 17/18 on the C-SOMC test gave optimal performance: correct classification of 75% of participants, with 75% sensitivity and 87.9% specificity.
The C-SOMC test demonstrated good concurrent validity, sensitivity and specificity in a sample of people with a first cerebral infarction, demonstrating that it could be used to screen for cognitive impairment in stroke patients.
本研究旨在将简易定向记忆注意力测试（SOMC）的英文版翻译成中文版，即C-SOMC测试，并针对一种使用更广泛的较长筛查工具，研究C-SOMC测试在首次发生脑梗死患者中的同时效度、敏感性和特异性。
一个专家小组采用正反翻译程序将SOMC测试翻译成中文。本研究纳入了86例首次发生脑梗死的参与者（67例男性和19例女性，平均年龄=59.31±11.57岁）。以中文版简易精神状态检查表（C-MMSE）作为对照，确定C-SOMC测试的效度。使用Spearman等级相关系数确定同时效度。采用单变量线性回归分析各项目预测C-SOMC测试总分和C-MMSE分数的能力。受试者工作特征曲线（AUC）下的面积用于展示C-SOMC测试在区分认知障碍与正常认知的不同临界值时的敏感性和特异性。
C-SOMC测试的总分及该测试第1项的得分与C-MMSE分数呈中度至高度相关，ρ值分别为0.636和0.565（P<0.001）。第2、4、5、6和7项的得分与C-MMSE分数呈中等程度相关，ρ值在0.272至0.495之间（P<0.05）。C-SOMC测试的总分和项目得分是C-MMSE分数的良好预测指标（调整R²=0.049至0.615），6个项目是总分的良好预测指标（调整R²=0.134至0.795）。C-SOMC测试的AUC为0.92。C-SOMC测试的临界值为17/18时表现最佳：正确分类75%的参与者，敏感性为75%，特异性为87.9%。
C-SOMC测试在首次发生脑梗死的患者样本中显示出良好的同时效度、敏感性和特异性，表明它可用于筛查卒中患者的认知障碍。
