New Mexico Veterans Affairs Health Care System-Albuquerque, Albuquerque, New Mexico 87108, USA.
J Trauma Stress. 2010 Jun;23(3):350-7. doi: 10.1002/jts.20528.
Previous research with other trauma populations demonstrated that internalizing and externalizing personality styles are associated with different PTSD comorbidities. The present study tested this association in two distinct Operation Enduring Freedom-Operation Iraqi Freedom (OEF/OIF) combat samples. Cluster analysis was used to categorize subtypes, which were compared on measures of PTSD, depression, anxiety, and substance use. Internalizers showed the highest rates of PTSD and depression. Externalizers had higher rates of alcohol problems in one sample only, whereas the other sample showed more substance misuse. In general, these findings suggest that this method of classifying trauma survivors is useful in OEF/OIF populations. Results suggest some differences across this population in terms of how substance use issues are expressed in externalizers.
先前针对其他创伤人群的研究表明，内倾和外倾的人格类型与不同的 PTSD 共病有关。本研究在两个不同的持久自由行动-伊拉克自由行动（OEF/OIF）作战样本中检验了这种关联。聚类分析用于对亚型进行分类，然后比较 PTSD、抑郁、焦虑和物质使用的测量结果。内倾者的 PTSD 和抑郁发生率最高。只有在一个样本中外倾者的酒精问题发生率更高，而另一个样本则显示出更多的物质滥用。总的来说，这些发现表明，这种对创伤幸存者进行分类的方法在 OEF/OIF 人群中是有用的。结果表明，在这一人群中，外倾者表达物质使用问题的方式存在一些差异。
