Confirmatory factor analyses of posttraumatic stress symptoms in deployed and nondeployed veterans of the Gulf War
Confirmatory factor analyses of posttraumatic stress symptoms in deployed and nondeployed veterans of the Gulf War
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DOI：
10.1037//0021-843x.111.4.637
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发表时间：
2002-11-01
影响因子：
4.6
通讯作者：
Doebbeling, BN
中科院分区：
文献类型：
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作者：
Simms, LJ;Watson, D;Doebbeling, BN
在3，695名部署的海湾战争退伍军人（N = 1，896）和未部署的对照组（N = 1，799）中，使用了解释性因素分析来比较6种创伤后应激障碍（PTSD）症状模型，范围从I到4个因素。4个相关因素侵入、回避、过度觉醒和焦虑提供了最佳拟合。烦躁因素结合了传统的麻木和过度兴奋的标志。模型优越性在多个子样本中进行了交叉验证，包括暴露于创伤性战斗压力源的部署参与者的子集。此外，收敛和判别效度的相关性表明，入侵可能是相对具体的创伤后应激障碍，而烦躁不安可能代表了许多疾病的非特异性组成部分。结果进行了讨论的背景下，层次模型的焦虑和抑郁。
Confirmatory factor analysis was used to compare 6 models of posttraumatic Stress disorder (PTSD) symptoms, ranging from I to 4 factors, in a sample of 3,695 deployed Gulf War veterans (N = 1,896) and nondeployed controls (N = 1,799). The 4 correlated factors-intrusions, avoidance, hyperarousal; and dysphoria-provided the best fit. The dysphoria factor combined traditional markers of numbing and hyperarousal. Model superiority was cross-validated in multiple subsamples, including a subset of deployed participants who were exposed to traumatic combat stressors. Moreover, convergent and discriminant validity correlations suggested that intrusions may be relatively specific to PTSD, whereas dysphoria may represent a nonspecific component of many disorders. Results are discussed in the context of hierarchical models of anxiety and depression.