Social support is one of the most robust predictors of posttraumatic stress disorder (PTSD). Yet, little is known about factors that moderate the relationship between social support and PTSD symptom severity. This meta-analysis estimated the overall effect size of the relationship between self-reported social support and PTSD severity and tested meaningful demographic, social support, and trauma characteristics that may moderate this association using both crosssectional and longitudinal effect sizes. A comprehensive search identified 139 studies with 145 independent cross-sectional effect sizes representing 62,803 individuals and 37 studies with 38 independent longitudinal effect sizes representing 25,792 individuals. Study samples had to comprise trauma-exposed, nonclinical adult populations to be included in the analysis. Crosssectional and longitudinal analyses revealed a near medium overall effect size (rcross = -.27; 95% CI [-.30, -.24]; rlong = -.25; 95% CI [-28, -.21]) with a high degree of heterogeneity (crosssectional I 2 = 91.6, longitudinal I 2 = 86.5). Both cross-sectional and longitudinal moderator analyses revealed that study samples exposed to natural disasters had a weaker effect size than samples exposed to other trauma types (e.g., combat, interpersonal violence), studies measuring negative social reactions had a larger effect size than studies assessing other types of social support, and veteran samples revealed larger effect sizes than civilian samples. Several other methodological and substantive moderators emerged that revealed a complex relationship between social support and PTSD severity. These findings have important clinical implications for the types of social support interventions that could mitigate PTSD severity. Public Significance StatementThis meta-analysis indicates that social support buffers against posttraumatic stress disorder (PTSD) symptoms among trauma-exposed individuals. The effect was weaker among individuals exposed to a natural disaster and stronger among veterans. The effect was also stronger when examining negative social reactions in response to trauma.Posttraumatic stress disorder (PTSD) is a debilitating condition that is associated with significant chronic impairment (

BackgroundIntensive delivery of evidence-based treatment for posttraumatic stress disorder (PTSD) is becoming increasingly popular for overcoming barriers to treatment for veterans. Understanding how and for whom these intensive treatments work is critical for optimizing their dissemination. The goals of the current study were to evaluate patterns of PTSD and depression symptom change over the course of a 3-week cohort-based intensive outpatient program (IOP) for veterans with PTSD, examine changes in posttraumatic cognitions as a predictor of treatment response, and determine whether patterns of treatment outcome or predictors of treatment outcome differed by sex and cohort type (combat versus military sexual trauma [MST]).MethodOne-hundred ninety-one veterans (19 cohorts: 12 combat-PTSD cohorts, 7 MST-PTSD cohorts) completed a 3-week intensive outpatient program for PTSD comprised of daily group and individual Cognitive Processing Therapy (CPT), mindfulness, yoga, and psychoeducation. Measures of PTSD symptoms, depression symptoms, and posttraumatic cognitions were collected before the intervention, after the intervention, and approximately every other day during the intervention.ResultsPre-post analyses for completers (N = 176; 92.1% of sample) revealed large reductions in PTSD (d = 1.12 for past month symptoms and d = 1.40 for past week symptoms) and depression symptoms (d = 1.04 for past 2 weeks). Combat cohorts saw a greater reduction in PTSD symptoms over time relative to MST cohorts. Reduction in posttraumatic cognitions over time significantly predicted decreases in PTSD and depression symptom scores, which remained robust to adjustment for autocorrelation.ConclusionIntensive treatment programs are a promising approach for delivering evidence-based interventions to produce rapid treatment response and high rates of retention. Reductions in posttraumatic cognitions appear to be an important predictor of response to intensive treatment. Further research is needed to explore differences in intensive treatment response for veterans with combat exposure versus MST.

There is little information available on the mental health effects of exposure to shared community violence such as the August 2014 violence that occurred in Ferguson, Missouri. This study sought to examine the relationship between proximity to community violence and mental health in both community members and police officers. We recruited 565 adults (community, n = 304, and police, n = 261) exposed to the violence in Ferguson to complete measures of proximity to violence, posttraumatic stress, depression, and anger. Using structural equation modeling, we assessed aspects of proximity to violence-connectedness, direct exposure, fear from exposure, media exposure, reactions to media, and life interruption-as correlates of posttraumatic stress disorder (PTSD) symptoms, depression, and anger. The final model yielded (n = 432), χ(2) (d = 12) = 7.4, p = .830; comparative fit index = 1.0, root mean square error of approximation = 0 [0, .04]. All aspects of proximity except direct exposure were associated with mental health outcomes. There was no moderation as a function of community versus police. Race moderated the relationship between life interruptions and negative outcomes; interruption was related to distress for White, but not Black community members. Based on group comparisons, community members reported more symptoms of PTSD and depression than law enforcement (ηp (2) = .06 and .02, respectively). Black community members reported more PTSD and depression than White community members (ηp (2) = .05 and .02, respectively). Overall, distress was high, and mental health interventions are likely indicated for some individuals exposed to the Ferguson events.

Moral injury refers to acts of commission or omission that violate individuals' moral or ethical standards. Morally injurious events are often synonymous with psychological trauma, especially in combat situations; thus, morally injurious events are often implicated in the development of PTSD for military service members and veterans. Although Prolonged Exposure (PE) and Cognitive Processing Therapy (CPT) have been well-established as effective treatments for veterans who are struggling with posttraumatic stress disorder (PTSD), it has been suggested that these two evidence-based therapies may not be sufficient for treating veterans whose PTSD resulted from morally injurious events. The purpose of this manuscript is to detail how the underlying theories of PE and CPT can account for moral-injury based PTSD and to describe two case examples of veterans with PTSD stemming from morally injurious events who were successfully treated with PE and CPT. The manuscript concludes with a summary of challenges that clinicians may face when treating veterans with PTSD resulting from moral injury using either PE or CPT.

, thousands of international troops have fought in a global war on terror. In the two largest operations of that war, Operation Enduring Freedom (OEF) and Operation Iraqi Freedom (OIF), there have been more than 5,000 casualties and approximately 16,000 wounded in action and unable to return to duty among U.S. service members (U.S. Department of Defense, 2011). During deployment, service members are exposed to a wide variety of stressors that can have long-lasting effects on their mental health and well-being (Hoge, Auchterlonie, & Milliken, 2006; Hoge et al., 2004). Experiencing combat-related traumatic events is commonly associated with a variety of psychological disorders, including traumatic brain injury, posttraumatic stress disorder (PTSD), and depression (Tanielian & Jaycox, 2008). Epidemiological studies have shown that up to 30% of service members who deployed reported postdeployment mental health problems (Hoge et al., 2006). In fact, Hoge et al. (2004) found that the prevalence of mental health problems in Soldiers and Marines is twice as high after their return compared to predeployment screenings. Other research has shown that deployment-related mental health problems are likely to increase over time