Factors associated with PTSD symptom improvement among Iraq and Afghanistan veterans receiving evidenced-based psychotherapy

Prioritizing Veteran Social Well-Being: A Call to Action

The Department of Veteran Affairs (VA) has an increased interest in addressing the well-being and whole health of Veterans. In March of 2023, the VA convened a conference to discuss whole-person outcomes of relevance for Veterans in clinical, research, and population health areas. Based upon perceptions from conference participants who are Veteran community members, the aim of this manuscript is to offer a Veteran community perspective on the importance of prioritizing social well-being as part of VA Whole Health programming. Through the involvement of Veterans, their caregivers and their families, the VA can offer a more culturally relevant model of holistic care that promotes social belonging, connectedness, and support for all Veterans.

Life After EBPs: Characterizing Subsequent Engagement in Evidence-Based Psychotherapy After Completion of an Initial Trauma-Focused EBP in a National Sample of VA Patients

Many Veterans who complete prolonged exposure (PE) or cognitive processing therapy (CPT) report residual symptoms, but it is unclear how to best address the mental health needs of these individuals. Examining patterns of mental health service utilization following completion of these two treatments may provide insight into how to best serve this group of individuals. In a large cohort of Veterans (N = 12,514) who sought treatment in the Veterans Health Administration during Fiscal Years 2015-2019, logistic regression models were used to assess the odds of initiating an additional course of trauma-focused (i.e., PE or CPT) or depression-focused psychotherapy in the year following completion of PE or CPT based on demographic, psychiatric, and treatment effectiveness-related variables. Approximately 9% of Veterans engaged in either trauma-(6%) or depression-(3%) related psychotherapy in the year following discharge from PE or CPT. Factors associated with increased odds of trauma-focused treatment initiation included having a sleep disorder diagnosis (OR = 1.23), a substance use disorder diagnosis (OR = 1.27), or experiencing military sexual trauma (OR = 1.64). Factors associated with increased odds of depression-focused treatment initiation included having a depression diagnosis (OR = 2.02). This study suggests that certain subgroups of Veterans who engage in PE or CPT (e.g., Veterans with comorbid sleep or substance use problems) are more likely to seek additional evidence-based treatment and may require augmentations to maximize clinical benefits, either during the initial course of treatment or subsequent to PTSD treatment.

Transitioning into trauma-focused evidence-based psychotherapy for posttraumatic stress disorder from other treatments: a qualitative investigation

Although trauma-focused evidence-based psychotherapy (TF-EBP) is recommended for posttraumatic stress disorder (PTSD), rates of TF-EBP initiation among veterans is very low. Service delivery research has shown that other treatments are commonly provided to veterans diagnosed with PTSD, including stabilization treatments. As little is known about how veterans experience the transition to TF-EBP, we conducted a qualitative examination of veterans' perspectives on transitions in PTSD treatment. We recruited a diverse sample of veterans (n = 30) who recently initiated TF-EBP to complete semi-structured qualitative interviews focusing on six domains (PTSD treatment options, cultural sensitivity of treatment, PTSD treatment selection, transition criteria, beliefs about stabilization treatment, treatment needs/preferences). Rapid qualitative analysis procedures were used to identify themes. Themes included: (1) wanting to learn about TF-EBP earlier; (2) perceived risks of transition; (3) relationships with non-TF-EBP providers as transition barriers; (4) high symptoms and poor interpersonal functioning as transition facilitators; (5) benefits of treatment planning and handoffs; (6) prior therapy best when aligned with TF-EBP; (7) socialization as a key benefit of prior therapy; and (8) medications supporting TF-EBP. Results highlight the importance of introducing TF-EBP early to veterans, establishing and communicating a comprehensive care plan, and anchoring stabilization treatment in TF-EBP concepts.

Advancing health equity by understanding race disparities and other factors associated with PTSD symptom improvement following evidence-based psychotherapy

Several studies found that Black veterans demonstrate less posttraumatic stress disorder (PTSD) symptom improvement than White veterans following PTSD evidence-based psychotherapies (EBPs). We aimed to understand this disparity among veterans receiving EBPs by modeling race with demographic, clinical, and service utilization factors. Using electronic health records, we employed a cohort study of Iraq and Afghanistan War Veterans who initiated PTSD EBP treatment and completed > 2 PTSD symptom measures (N = 21,751). Using hierarchical Bayesian logistic regressions, we modeled the probability of PTSD symptom improvement. Black race was associated with less PTSD improvement (mean posterior odds ratio [MPOR] = 0.92; 95 % plausibility interval [PI] = 0.84, 1.0), as was group therapy (MPOR = 0.67; 95 % PI = 0.62, 0.73). Factors associated with greatest improvement included prolonged exposure (MPOR = 1.35; 95 % PI = 1.25, 1.45) and treatment density (MPOR = 1.40; 95 % PI = 1.36, 1.45). On average, Black veterans evidenced PTSD EBP improvement disparities. Clinical and utilization did not fully account for these disparities, although disproportionate representation of Black veterans in group CPT may explain some of these differences. Understanding experiences such as race-based trauma and chronic racism and discrimination is critical to provide Black veterans with the most effective PTSD care.

Does recommended mental health follow-up care occur after postdeployment screening in the Canadian Armed Forces? A retrospective cohort study

OBJECTIVE

To determine Canadian service members' level of adherence to a recommendation for mental health services follow-up that was assigned by clinicians during postdeployment screening.

DESIGN

Retrospective cohort study.

SETTING

Canadian military population.

PARTICIPANTS

The cohort consisted of personnel (n=28 460) with a deployment within the 2009-2014 time frame. A stratified random sample (n=3004) was selected for medical chart review. However, we restricted our analysis to individuals whose completed screening resulted in a recommendation for mental health services follow-up (sample n=316 (weighted n=2034) or 11.2% of screenings.

INTERVENTIONS

Postdeployment health screening.

PRIMARY OUTCOME MEASURE

The outcome was adherence to a screening-indicated mental health services follow-up recommendation, assessed within 90 days, a preferred delay, and within 365 days, a delay considered partially associated with the screening recommendation.

RESULTS

Adherence within 90 days of screening was 71.1% (95% CI 59.7% to 82.5%) for individuals with 'major' mental health concerns, 36.1% (95% CI 23.9% to 48.4%) for those with 'minor' mental health concerns, and 46.8% (95% CI 18.6% to 75.0%), for those with psychosocial mental health concerns; the respective 365-day adherence fractions were 85.3% (95% CI 76.1% to 94.5%), 55.7% (95% CI 42.0% to 69.4%) and 48.6% (95% CI 20.4% to 76.9%). Logistic regression indicated that a 90-day adherence among those with a 'major' mental health concern was higher among those screening after 2012 (adjusted OR (AOR) 5.45 (95% CI 1.08 to 27.45)) and lower, with marginal significance, among those with deployment durations greater than 180 days (AOR 0.35 (95% CI 0.11 to 1.06)).

CONCLUSIONS

On an individual level, screening has the potential to identify when a care need is present and a follow-up assessment can be recommended; however, we found that adherence to this recommendation is not absolute, suggesting that administrative checks and possibly, process refinements would be beneficial to ensure that care-seeking barriers are minimised.

Who improves in trauma-focused treatment: A cluster analysis of treatment response in VA patients undergoing PE and CPT

BACKGROUND

Although most veterans with posttraumatic stress disorder (PTSD) benefit from evidence-based treatments, questions persist concerning the profiles of those at risk for poor outcomes. To help address these gaps, this study analyzed a large clinical cohort of veterans receiving prolonged exposure (PE) or cognitive processing therapy (CPT).

METHODS

Cluster analysis using Ward's method with Euclidian distances identified clinically meaningful subgroups of veterans in a national cohort (n = 20,848) using variables maintained in the electronic medical record. The clusters were then compared via one-way analysis of variance and Tukey's HSD on indicators of treatment progress including PTSD symptom change, clinical recovery, clinically significant change, remission, and treatment completion.

RESULTS

Effect size differences on clinical outcome measures for PE and CPT were negligible. Less than half of veterans achieved at least a 15-point reduction in PCL-5 score and half completed treatment. We identified 10 distinct clusters. Higher rates of PTSD service-connected disability were linked to poorer outcomes across multiple clusters, especially when combined with Post-Vietnam service era. Non-White race was also linked with poorer clinical outcomes. Factors associated with better outcomes included a greater proportion of female veterans, especially when combined with recent service era, and longer PTSD diagnosis duration.

CONCLUSIONS

This study suggests the need to improve PTSD treatment outcomes for non-White and male veterans, examine treatment response in Post-Vietnam era veterans, and consider ways in which the service connection process could hinder treatment response. The results from this study also indicate the benefits of integrating elements of clinical complexity into an analytic approach.

Veterans receiving a second course of cognitive processing therapy or prolonged exposure therapy: is it better to switch or stay the same?

Cognitive processing therapy (CPT) and prolonged exposure therapy (PE) are effective psychotherapies for post-traumatic stress disorder (PTSD). However, these treatments also have high rates of dropout and non-response. Therefore, patients may need a second course of treatment. We compared outcomes for patients who switched between CPT/PE and those who repeated CPT/PE during a second course of treatment. We collected data from Iraq and Afghanistan war veterans (n = 2,958) who received a second course of CPT/PE in the Veterans Health Administration from 2001 to 2017 and had symptom outcomes (PTSD checklist; PCL). We measured the association between treatment sequence and change in PCL score over the second course of treatment using hierarchical Bayesian regression, adjusted for sociodemographic and clinical characteristics. All treatment sequences showed a significant reduction in PCL score over time (β = -4.80; HDI₉₅: -5.74, -3.86). Veterans who switched from CPT to PE had modestly greater PCL reductions during the second course than those who repeated CPT. However, no significant difference in PCL change during the second course was observed between veterans who repeated PE and those who switched from PE to CPT. Veterans participating in a second course of CPT/PE can benefit, and switching treatment may be slightly more beneficial following CPT.

Equine-Assisted Activities and Therapies for Veterans With Posttraumatic Stress Disorder: Current State, Challenges and Future Directions

Posttraumatic stress disorder is common among military Veterans. While effective treatments exist, many Veterans either do not engage in treatment or fail to achieve full remission. Thus, there is a need to develop adjunctive complementary interventions to enhance treatment engagement and/or response. Equine-assisted activities and therapies (EAAT) are one category of animal assisted interventions that might serve this function. The aim of this article is to review the current state and challenges regarding the use of EAAT for Veterans with PTSD and provide a roadmap to move the field forward. EAAT hold promise as adjunctive complementary interventions for symptom reduction among Veterans with PTSD. Additionally, there is evidence that these approaches may enhance wellbeing in this population. At this time, many gaps in the literature exist and rigorous randomized controlled trials are needed before definitive conclusions can be drawn. The authors of this work provide recommendations as a roadmap to move the field forward. These include standardizing the EAAT nomenclature, focusing mechanism of action studies on the human-horse bond using biological metrics and using a standardized intervention model across studies.

How do gender and military sexual trauma impact PTSD symptoms in cognitive processing therapy and prolonged exposure?

OBJECTIVE

Effectiveness of evidence-based psychotherapy (EBP) for PTSD can vary based on gender and trauma type, with poorer outcomes for men and sexual traumas. Among veterans receiving EBPs for PTSD, the effects of the interaction between gender and military sexual trauma (MST) on treatment outcome are unclear. This study examined how gender and MST impact PTSD symptoms following cognitive processing therapy (CPT) and prolonged exposure (PE).

METHOD

We conducted a national, retrospective cohort study of all post 9/11 veterans who had a PTSD diagnosis from 10/2001-9/2017 at VHA facilities and >1 psychotherapy visit. Inclusion criteria included completion of ≥8 CPT/PE sessions and pre- and post-treatment PCL (N = 9711). Mixed-effects linear regression models were conducted, separately by treatment, to examine associations between changes in PTSD symptoms and gender, MST, and their interactions with time.

RESULTS

For both treatments, there were no significant differences in pre-treatment PCL by gender or MST, and PCL decreased significantly over time. In adjusted models, only the gender by time interaction on pre-to-post-CPT change was significant (p < .001); the decrease in women's PCL was 2.67 points greater, compared to men.

CONCLUSIONS

Women veterans demonstrated greater reductions in PTSD symptoms from CPT. There were no differences by gender for PE, suggesting men and women veterans benefit similarly. Results suggest outcomes may be impacted by gender socialization when utilizing certain cognitive behavioral techniques. MST, regardless of gender, did not impact PTSD outcomes for either treatment. Both CPT and PE may thus be effective for veterans irrespective of MST history.