Universidade Federal de São Paulo, São Paulo, Brazil.
Psychiatry Res. 2011 Jan 30;185(1-2):157-60. doi: 10.1016/j.psychres.2009.11.006.
As a consequence of the increasing urban violence in Brazil, many cases of posttraumatic stress disorder (PTSD) are now seen in the community and clinical settings. The main aim of this article is to assess the psychometric properties of the Clinician-Administered PTSD Scale (CAPS) to study factors related to the etiology, prognosis, and efficacy of interventions of PTSD in civilian populations. PTSD outpatients from a program of victims of violence and subjects identified in an epidemiological survey conducted in the city of Sao Paulo completed a battery of validated instruments and the CAPS. Instrument reliability and validity were measured. The comparison between the CAPS scores and the Structured Clinical Interview for DSM IV (SCID) interview resulted in the following validity coefficients: sensitivity=90%, specificity=95%, and misclassification rate=7.1%. The area under the receiver operating characteristic (ROC) curve was 0.97. There was a positive correlation between CAPS scores with Beck Depression Inventory (BDI; 0.70) and Beck Anxiety Inventory (BAI; 0.76) scores. The Kappa coefficients were all higher than 0.63 for all CAPS items. The internal consistency for all CAPS items resulted in a Cronbach's alpha coefficient of 0.97. The CAPS showed to be both an accurate and a reliable research instrument to identify PTSD cases in a civilian population.
由于巴西城市暴力的不断增加，现在在社区和临床环境中可以看到许多创伤后应激障碍（PTSD）病例。本文的主要目的是评估临床医生管理的 PTSD 量表（CAPS）的心理测量特性，以研究与 PTSD 的病因、预后和干预效果相关的因素在平民人群中。来自暴力受害者计划的 PTSD 门诊患者和在圣保罗市进行的流行病学调查中确定的受试者完成了一套经过验证的工具和 CAPS。测量了工具的可靠性和有效性。CAPS 评分与 DSM-IV 结构临床访谈（SCID）访谈的比较得出了以下有效性系数：敏感性=90%，特异性=95%，误分类率=7.1%。接收者操作特征（ROC）曲线下的面积为 0.97。CAPS 评分与贝克抑郁量表（BDI；0.70）和贝克焦虑量表（BAI；0.76）评分之间存在正相关。所有 CAPS 项目的 Kappa 系数均高于 0.63。所有 CAPS 项目的内部一致性导致 Cronbach 的 alpha 系数为 0.97。CAPS 被证明是一种准确可靠的研究工具，可用于在平民人群中识别 PTSD 病例。
