The Weigl Colour-Form Sorting Test: A quick and easily administered bedside screen for dementia and executive dysfunction
The Weigl Colour-Form Sorting Test: A quick and easily administered bedside screen for dementia and executive dysfunction
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DOI：
10.1002/gps.1765
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发表时间：
2007-09-01
影响因子：
4
通讯作者：
Taylor, Caroline
中科院分区：
文献类型：
--
作者：
Hobson, Peter;Meara, Jolyon;Taylor, Caroline
在医院和社区进行认知障碍的背景筛查需要一种有效、可靠、简明、耐受性好、易于管理的仪器。在这项研究中，我们研究了一种非语言认知筛查工具：Weigl的颜色形式分类测试(WCFT)，以确定其在社区中风幸存者、帕金森病(PD)患者和年龄/性别匹配的对照组样本中作为简短认知筛查的有效性。方法共236名受试者同意参加本次调查，其中卒中幸存者105人，帕金森病患者40人，对照组91人。WCFT检测显著认知损害的敏感性和特异性是基于精神病学访谈、认知评估和DSMIV标准的应用。结果WCFT检测认知功能障碍的最佳临界点为2/4。WCFT在卒中存活组的敏感性和特异性分别为77.8%和78.3%，在PD组分别为78.6%和85.5%，在对照组分别为83.3%和94.1%。用受试者工作曲线下面积计算的WCFT在所有受试者中的诊断准确率均大于0.70，这表明它具有可接受的心理测量学特性来区分认知障碍的病例和非病例。结论WCFT在检测所有受试者的认知功能障碍方面具有良好的敏感性和特异性。这一工具将在临床实践中被证明是现有认知筛查的一个有用的辅助工具，因为它具有良好的心理测量学特性，并且不依赖语言技能。版权所有(C)2007 John Wiley&Sons，Ltd.
Background Screening for cognitive impairment in hospital and the community requires a valid, reliable, concise, well tolerated, easily administered instrument. In this investigation, we have studied a non-verbal cognitive screening instrument; Weigl's Colour-Form Sorting Test (WCFT), to determine its utility as a brief cognitive screen in a community based sample of stroke survivors, Parkinson's disease (PD) patients and age/sex matched controls. Methods A total of 236 subjects consented to participate in this investigation, consisting of 105 stroke survivors, 40 PD and 91 control subjects. The sensitivity and specificity of the WCFT to detect significant cognitive impairment was based upon psychiatric interview, cognitive assessment and application of DSMIV criteria. Results The optimal cut-point of the WCFT to detect cases of cognitive impairment was 2/4 in all of the groups in this investigation. The sensitivity and specificity of the WCFT at the cut point of 2 in the stroke survivors was 77.8% and 78.3, in the PD patients, it was 78.6% and 85.5% and, in the control group 83.3% and 94.1% respectively. The diagnostic accuracy of the WCFT as calculated by the area under the receiver operating curve was greater than 0.70 in all subject groups, which suggests that it has acceptable psychometric properties to discriminate between case and non-cases of cognitive impairment. Conclusion The WCFT was able to demonstrate good sensitivity and specificity, at detecting cognitive impairments in all of the subjects. This instrument will prove to be a useful adjunct to existing cognitive screens in clinical practice, due to its excellent psychometric properties, and lack of dependency on language skills. Copyright (c) 2007 John Wiley & Sons, Ltd.