PTSD symptom severity mediates the impact of war zone stress exposure on postdeployment physical health: The Fort Devens Gulf War veterans cohort

OBJECTIVE

Exposure to traumatic events is associated with increased risk for negative physical health outcomes, but more work is needed to advance understanding of the mechanisms underlying this relationship. As military deployments frequently involve trauma exposure, this issue has clear implications for veteran populations. This longitudinal study examined the role of mental health symptomatology (i.e., PTSD, depression, and anxiety) in the association between war zone stress and postdeployment physical health in Gulf War veterans.

METHOD

Data were collected in three waves over 7 years from a sample of 2,929 (92% male) Army personnel who were deployed to the 1990-1991 Gulf War. Structural equation modeling (SEM) was used to examine the associations linking war zone stress exposure reported at deployment return with subsequent physical health 6 to 7 years later, including the postdeployment onset of health symptoms and conditions and health functioning. The roles of PTSD, depression, and anxiety symptom severity as potential risk mechanisms linking stress exposure with later health outcomes were examined.

RESULTS

Self-reported higher stress exposure was linked with greater severity of PTSD, depression, and anxiety symptoms. SEM analyses revealed that PTSD symptom severity was the only significant mediator of stress exposure on subsequent physical health.

CONCLUSION

Findings support the unique and significant role of PTSD in the development of physical health problems in the wake of war zone stress for Gulf War veterans. These results suggest that targeted PTSD interventions could reduce or prevent future physical health problems that can result from trauma exposure and mental health sequelae linked to military service. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

The Impact of Hazardous Drinking Among Active Duty Military With Posttraumatic Stress Disorder: Does Cognitive Processing Therapy Format Matter?

This study was a secondary data analysis of clinical trial data collected from 268 active duty U.S. military service members seeking cognitive processing therapy (CPT) for posttraumatic stress disorder (PTSD) at Fort Hood, Texas, related to combat operations following September 11, 2001. Our primary aim was to evaluate changes in PTSD symptom severity and alcohol misuse as a function of baseline hazardous drinking and treatment format (i.e., group or individual). At baseline and posttreatment, PTSD was assessed using the PTSD Symptom Scale-Interview Version and PTSD Checklist for DSM-5. Hazardous drinking was categorically defined as an Alcohol Use Disorder Identification Test total score of 8 or higher. Employing intent-to-treat, mixed-effects regression analysis, all groups reported reduced PTSD symptom severity, Hedges' gs = -0.33 to -1.01, except, unexpectedly, nonhazardous drinkers who were randomized to group CPT, Hedges' g = -0.12. Hazardous drinkers who were randomized to individual therapy had larger reductions in PTSD symptoms than nonhazardous drinkers who were randomized to group CPT, Hedges' g = -0.25. Hazardous drinkers also reported significant reductions in alcohol misuse, regardless of treatment format, Hedges' gs = -0.78 to -0.86. This study builds upon an emerging literature suggesting that individuals with PTSD and co-occurring alcohol use disorder can engage successfully in CPT, which appears to be an appropriate treatment for these individuals whether it is delivered individually or in a group format. However, as a portion of participants remained classified as hazardous drinkers at posttreatment, some individuals may benefit from integrated treatment.

Intensive, Multi-Couple Group Therapy for PTSD: A Nonrandomized Pilot Study With Military and Veteran Dyads

Cognitive-behavioral conjoint therapy for posttraumatic stress disorder (CBCT for PTSD; Monson & Fredman, 2012) is efficacious in improving PTSD symptoms and relationship adjustment among couples with PTSD. However, there is a need for more efficient delivery formats to maximize engagement and retention and to achieve faster outcomes in multiple domains. This nonrandomized trial was designed to pilot an abbreviated, intensive, multi-couple group version of CBCT for PTSD (AIM-CBCT for PTSD) delivered over a single weekend for 24 couples that included an active-duty service member or veteran with PTSD who had deployed in support of combat operations following September 11, 2001. All couples completed treatment. Assessments conducted by clinical evaluators 1 and 3 months after the intervention revealed significant reductions in clinician-rated PTSD symptoms (ds = -0.77 and -0.98, respectively) and in patients' self-reported symptoms of PTSD (ds = -0.73 and -1.17, respectively), depression (ds = -0.60 and -0.75, respectively), anxiety (ds = -0.63 and -0.73, respectively), and anger (ds = -0.45 and -0.60, respectively), relative to baseline. By 3-month follow-up, partners reported significant reductions in patients' PTSD symptoms (d = -0.56), as well as significant improvements in their own depressive symptoms (d = -0.47), anxiety (d = -0.60), and relationship satisfaction (d = 0.53), relative to baseline. Delivering CBCT for PTSD through an abbreviated, intensive multi-couple group format may be an efficient strategy for improving patient, partner, and relational well-being in military and veteran couples with PTSD.

Weekly Changes in Blame and PTSD Among Active-Duty Military Personnel Receiving Cognitive Processing Therapy

Both negative posttraumatic cognitions and posttraumatic stress disorder (PTSD) symptoms decrease over the course of cognitive-behavior therapy for PTSD; however, further research is needed to determine whether cognitive change precedes and predicts symptom change. The present study examined whether weekly changes in blame predicted subsequent changes in PTSD symptoms over the course of cognitive processing therapy (CPT). Participants consisted of 321 active duty U.S. Army soldiers with PTSD who received CPT in one of two clinical trials. Symptoms of PTSD and blame were assessed at baseline and weekly throughout treatment. Bivariate latent difference score modeling was used to examine temporal sequential dependencies between the constructs. Results indicated that changes in self-blame and PTSD symptoms were dynamically linked: When examining cross-construct predictors, changes in PTSD symptoms were predicted by prior changes in self-blame, but changes in self-blame were also predicted by both prior levels of and prior changes in PTSD. Changes in other-blame were predicted by prior levels of PTSD, but changes in other-blame did not predict changes in PTSD symptoms. Findings highlight the dynamic relationship between self-blame and PTSD symptoms during treatment in this active military sample.

Post-Traumatic Stress Disorder Symptoms from Multiple Stressors Predict Chronic Pain in Cancer Survivors

Background: Despite the association between chronic pain and post-traumatic stress disorder (PTSD), little is known about the longitudinal course of pain and PTSD during cancer treatment. Objectives: We examined the prevalence of PTSD and chronic pain at three time periods in veterans with a diagnosis of cancer, and the relationship between the experience of pain and PTSD. Methods: Participants (N = 123) with oral-digestive cancers were recruited from the Veterans Healthcare System (age M = 65.31 and SD = 9.13; 98.4% male) and completed face to face interviews at 6, 12, and 18 months post-diagnosis. Measures included the Post-traumatic Stress Disorder Checklist-Stressor-Specific version (PCL-S), Primary care PTSD (PC-PTSD), and the Patient-Reported Outcomes Measurement Information System (PROMIS) Pain Impact Scale. Results: About one-third (26.8%) of the sample had chronic pain, defined as elevated pain at two time periods. About one-fifth (20.3%) endorsed symptoms of combat-related PTSD at 6 months, and 22.8% endorsed symptoms of cancer-related PTSD, exceeding a clinical cutoff for older adults (12 months = 21.1%, 18 months = 23.1%). Changes over time were observed for cancer-related PTSD symptom clusters of hyperarousal (F = 3.85 and p = 0.023) and emotional numbing (F = 4.06 and p = 0.018) with a statistically significant quadratic function increasing at 18 months. In logistic regression, individuals with both combat and cancer-related PTSD symptoms at six months had 8.49 times higher odds of experiencing chronic pain (χ² = 25.91 and p < 0.001; R² = 0.28). Conclusions: Persisting pain may be a concern in veterans with cancer. Individuals who have experienced traumatic events with persisting PTSD symptoms may be at elevated risk for chronic pain. Veterans with PTSD symptoms from both cancer and combat are at the highest risk to experience chronic pain.

Doxazosin for the treatment of co-occurring PTSD and alcohol use disorder: Design and methodology of a randomized controlled trial in military veterans

Posttraumatic stress disorder (PTSD) and alcohol use disorders (AUD) are two of the most common mental health disorders affecting civilians as well as military populations. If left untreated, individuals with co-occurring PTSD/AUD are at increased risk for developing other mental health problems (e.g., depression, anxiety), physical health problems, reduced resiliency and military readiness, and vocational and social impairment. Substantial gaps in the treatment of co-occurring PTSD/AUD exist and there is a critical need to develop more effective pharmacological treatments. The current study addresses this gap in the literature by testing the efficacy and safety of doxazosin, a long-acting and selective alpha-1 adrenergic antagonist, as compared to placebo in reducing PTSD and AUD severity among U.S. military veterans. Noradrenergic dysregulation has been implicated in the development and maintenance of PTSD and AUD, and pilot studies examining doxazosin in PTSD-only or AUD-only samples have shown promise. This is the first study, however, to evaluate doxazosin in a comorbid PTSD/AUD sample. This paper describes the rationale, design and methodology of a randomized, double-blind, placebo-controlled trial of doxazosin (16 mg/day) delivered over 12 weeks among military veterans with current PTSD and AUD. In addition, functional magnetic resonance imaging (fMRI) is applied at pre- and post-treatment to investigate the underlying pathophysiology of comorbid PTSD/AUD and identify prognostic indicators of treatment outcome. This study is designed to accelerate research on co-occurring PTSD/AUD and provide empirical evidence to inform clinical practice.