National Centre for Psychotraumatology, Institute of Psychology, University of Southern Denmark, Odense, Denmark.
Eur J Psychotraumatol. 2012;3. doi: 10.3402/ejpt.v3i0.18201. Epub 2012 Jun 12.
Since the introduction of Acute Stress Disorder (ASD) into the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) research has focused on the ability of ASD to predict PTSD rather than focusing on addressing ASD's underlying latent structure. The few existing confirmatory factor analytic (CFA) studies of ASD have failed to reach a clear consensus regarding ASD's underlying dimensionality. Although, the discrepancy in the results may be due to varying ASD prevalence rates, it remains possible that the model capturing the latent structure of ASD has not yet been put forward. One such model may be a replication of a new five-factor model of PTSD, which separates the arousal symptom cluster into Dysphoric and Anxious Arousal. Given the pending DSM-5, uncovering ASD's latent structure is more pertinent than ever.
USING CFA, FOUR DIFFERENT MODELS OF THE LATENT STRUCTURE OF ASD WERE SPECIFIED AND TESTED: the proposed DSM-5 model, the DSM-IV model, a three factor model, and a five factor model separating the arousal symptom cluster.
The analyses were based on a combined sample of rape and bank robbery victims, who all met the diagnostic criteria for ASD (N = 404) using the Acute Stress Disorder Scale.
The results showed that the five factor model provided the best fit to the data.
The results of the present study suggest that the dimensionality of ASD may be best characterized as a five factor structure which separates dysphoric and anxious arousal items into two separate factors, akin to recent research on PTSD's latent structure. Thus, the current study adds to the debate about how ASD should be conceptualized in the pending DSM-5.
自《精神疾病诊断与统计手册》（DSM）第四版引入急性应激障碍（ASD）以来，研究重点一直放在 ASD 预测 PTSD 的能力上，而不是解决 ASD 的潜在潜在结构问题。少数现有的 ASD 验证性因素分析（CFA）研究未能就 ASD 的潜在维度达成明确共识。尽管结果存在差异可能是由于 ASD 患病率不同，但仍有可能尚未提出捕捉 ASD 潜在结构的模型。这样的模型之一可能是 PTSD 的新五因素模型的复制，该模型将唤醒症状群分为烦躁和焦虑唤醒。鉴于即将推出的 DSM-5，揭示 ASD 的潜在结构比以往任何时候都更加重要。
使用 CFA，指定并测试了 ASD 潜在结构的四种不同模型：拟议的 DSM-5 模型、DSM-IV 模型、三因素模型和分离唤醒症状群的五因素模型。
该分析基于强奸和银行抢劫受害者的综合样本，所有这些受害者都使用急性应激障碍量表符合 ASD 的诊断标准（N = 404）。
结果表明，五因素模型最适合数据。
本研究的结果表明，ASD 的维度特征可能最好描述为五因素结构，将烦躁和焦虑唤醒项目分为两个单独的因素，类似于最近对 PTSD 潜在结构的研究。因此，本研究增加了关于 ASD 应该如何在即将推出的 DSM-5 中概念化的争论。
