Department of Genetics, National Institute of Psychiatry "Ramón de la Fuente Muñíz", Av. Mexico-Xochimilco 101, Huipulco, Tlalpan, Mexico City, 14370, Mexico.
Clinical services, National Institute of Psychiatry "Ramón de la Fuente Muñíz", Av. Mexico-Xochimilco 101, Huipulco, Tlalpan, Mexico City, 14370, Mexico.
Psychiatry Res. 2021 Nov;305:114197. doi: 10.1016/j.psychres.2021.114197. Epub 2021 Aug 29.
Posttraumatic stress disorder (PTSD) is a common and disabling condition developing in one of four survivors after an earthquake. Brief and self-reported validated measures for assessing PTSD symptom severity are necessary to improve care access and assess disorder progress and treatment response. Therefore, we evaluated the psychometric properties of the PTSD-Checklist for the DSM-5 (PCL-5) of 20-, 8- and 4-item in patients that sought specialized mental health services after a catastrophic earthquake that stroke Mexico on September 19th, 2017. The internal consistency of 20-, 8- and 4-item PCL-5 was adequate (≥.7). Using the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) as a reference, signal detection analyses revealed a PCL-5 score of 27 as optimal (sensitivity = .96, specificity = .73) for identifying probable PTSD cases. The shortened versions highly correlated with the full PCL-5 and had comparable diagnostic utility. Our results indicate that the 20-item PCL-5 and the abridged versions can effectively identify possible PTSD cases. The 8-item version has better psychometric properties and more consistent diagnostic utility across time and civil populations. These measures must be evaluated in independent samples to corroborate their utility in different populations and regarding diverse traumatic events.
创伤后应激障碍（PTSD）是一种常见且致残的疾病，在地震后，有四分之一的幸存者会患上这种疾病。为了改善护理的可及性，并评估疾病的进展和治疗反应，有必要采用简短的、自我报告的、经过验证的方法来评估 PTSD 症状的严重程度。因此，我们评估了 PTSD 检查表（PCL-5）的 20 项、8 项和 4 项条目在经历了 2017 年 9 月 19 日墨西哥灾难性地震后寻求专门心理健康服务的患者中的心理测量特性。20 项、8 项和 4 项 PCL-5 的内部一致性均良好（≥.7）。使用DSM-5 临床医生管理 PTSD 量表（CAPS-5）作为参考，信号检测分析显示 PCL-5 得分为 27 时，识别可能患有 PTSD 的病例的效果最佳（敏感性=0.96，特异性=0.73）。简短版本与完整的 PCL-5 高度相关，且具有相似的诊断效用。我们的结果表明，20 项 PCL-5 及简化版本可以有效地识别可能患有 PTSD 的病例。8 项版本具有更好的心理测量特性和更一致的诊断效用，无论是在不同时间还是在不同人群中。这些测量方法必须在独立的样本中进行评估，以证实其在不同人群和不同创伤事件中的效用。
