Department of Psychology, The University of Iowa, Iowa City, IA 52242-1407, USA.
Clin Psychol Rev. 2011 Aug;31(6):993-1003. doi: 10.1016/j.cpr.2011.06.005. Epub 2011 Jun 22.
Posttraumatic Stress Disorder (PTSD) has been found to be a multidimensional disorder most likely consisting of four distinct symptom dimensions. Many studies have investigated the fit of two competing structural models of PTSD (King et al., 1998; Simms et al., 2002). However, little research has been done on the utility and differential external correlates of these dimensions. Meta-analysis was used to find the correlations between dimensions of PTSD and five external variables (depression, anxiety, panic, substance use, and trauma history), and multivariate analysis was used to find the unique contributions of each dimension in predicting each variable. It was found that the Simms et al. (2002) model better divides PTSD symptoms into specific and general factors. The relative specificity of each factor is discussed.
创伤后应激障碍（PTSD）被发现是一种多维障碍，很可能由四个不同的症状维度组成。许多研究已经调查了 PTSD 的两种竞争结构模型（King 等人，1998 年；Simms 等人，2002 年）的拟合情况。然而，对于这些维度的实用性和差异外部相关性的研究很少。元分析用于发现 PTSD 维度与五个外部变量（抑郁、焦虑、惊恐、物质使用和创伤史）之间的相关性，多元分析用于发现每个维度对每个变量的预测的独特贡献。结果发现，Simms 等人（2002 年）的模型更好地将 PTSD 症状分为特定和一般因素。讨论了每个因素的相对特异性。
