Factor analysis of the catatonia rating scale and catatonic symptom distribution across four diagnostic groups
Factor analysis of the catatonia rating scale and catatonic symptom distribution across four diagnostic groups
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DOI：
10.1016/s0010-440x(03)00108-1
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发表时间：
2003-11-01
影响因子：
7.3
通讯作者：
Bräunig, P
中科院分区：
文献类型：
--
作者：
Krüger, S;Bagby, RM;Bräunig, P
紧张症是一种常见的精神运动综合征，在过去十年中越来越受到重视。紧张性综合征的评估需要系统的评定量表，涵盖紧张性运动体征和行为的复杂谱。紧张症评定量表（CRS）就是这样一种工具，它已经过验证，并经过了广泛的可靠性测试。在本研究中，为了进一步验证CRS，组成该量表的项目被提交到主成分因子提取，然后进行方差最大旋转。进行方差分析（ANOVA），以评估精神分裂症，单纯躁狂症，混合躁狂症和抑郁症（N = 165）患者的提取因素的组间差异。共提取出4个因子，解释了71.5%的方差。这些因素对应于以下临床综合征：（1）紧张性兴奋，（2）异常不自主运动/习惯，（3）意志障碍/僵住症，和（4）紧张性抑制。方差分析显示，各组均显示出独特的紧张性症状模式，诊断组之间的重叠最小。我们的结论是，这四个因素的紧张症的症状结构的挑战目前的概念，提出只有两个症状亚型。(C)2003年爱思唯尔公司All rights reserved.
Catatonia is a frequent psychomotor syndrome, which has received increasing recognition over the last decade. The assessment of the catatonic syndrome requires systematic rating scales that cover the complex spectrum of catatonic motor signs and behaviors. The Catatonia Rating Scale (CRS) is such an instrument, which has been validated and which has undergone extensive reliability testing. In the present study, to further validate the CRS, the items composing this scale were submitted to principal components factor extraction followed by a varimax rotation. An analysis of variance (ANOVA) was performed to assess group differences on the extracted factors in patients with schizophrenia, pure mania, mixed mania, and major depression (N = 165). Four factors were extracted, which accounted for 71.5% of the variance. The factors corresponded to the clinical syndromes of (1) catatonic excitement, (2) abnormal involuntary movements/mannerisms, (3) disturbance of volition/catalepsy, and (4) catatonic inhibition. The ANOVA revealed that each of the groups showed a distinctive catatonic symptom pattern and that the overlap between diagnostic groups was minimal. We conclude that this four-factor symptom structure of catatonia challenges the current conceptualization, which proposes only two symptom subtypes. (C) 2003 Elsevier Inc. All rights reserved.