PTSD is associated with increased physical and psychological aggression in civilian, active duty, and veteran populations in the extant literature. That said, not all individuals with PTSD exhibit aggressive behaviors. As such, more work is needed to identify mediators and moderators of this relationship. The present study examined a conditional process model that examined 1) the degree to which depressive symptoms mediated the relationship between PTSD and both physical and psychological aggression, and, 2) whether any of the paths in the mediation model differed for individuals who screened positive for TBI versus those who did not. For the overall sample, the PTSD severity total effect was significant for both types of aggression, and depression was a significant mediator for psychological, but not physical, aggression. The multiple groups model showed that the indirect effect seen in the total sample existed only for those who had not screened positive for TBI, though the direct effect was significant for both groups. These findings help reconcile conflicting results from earlier studies and have important clinical implications, chiefly that individuals with PTSD should be monitored for psychological aggression regardless of TBI screening status, and that treating concurrent depressive symptoms may help reduce psychological aggression specifically for those who do not screen positive for TBI.

在现有文献中，PTSD 与平民、现役和退伍军人群体的身体和心理攻击性增加有关。也就是说，并非所有患有 PTSD 的人都表现出攻击性行为。因此，需要做更多的工作来确定这种关系的调解人和调解人。本研究检查了一个条件过程模型，该模型检查了 1）抑郁症状在多大程度上介导了 PTSD 与身体和心理攻击之间的关系，以及 2）中介模型中的任何路径对于筛查呈阳性的个体是否不同TBI 与那些没有的人。对于整个样本，创伤后应激障碍严重程度的总效应对两种类型的攻击都是显着的，而抑郁是心理攻击而非身体攻击的重要中介。多组模型显示，在总样本中看到的间接效应仅存在于那些没有筛查出 TBI 阳性的人，尽管直接效应对两组都很显着。这些发现有助于调和早期研究的相互矛盾的结果，并具有重要的临床意义，主要是无论 TBI 筛查状态如何，都应监测患有 PTSD 的个体的心理攻击，并且治疗并发的抑郁症状可能有助于减少心理攻击，特别是对于那些不筛查的人TBI 阳性。