Military personnel and first responders are distinct populations that share similarities on work, cultural, and peritraumatic factors that may impact evidence-based PTSD treatment (EBT) outcomes. Little research to date has compared their response to EBTs or identified predictors of EBT outcomes for both populations. The present study examined whether first responders' treatment outcomes were non-inferior to those of military personnel in a three-week Trauma Management Therapy (TMT)-based intensive outpatient program (IOP) and whether baseline hyperarousal symptoms were predictive of outcomes. Data were analyzed from 111 military personnel and first responders (85.6% male, mean age=43.0 years) who completed the IOP. Changes in PTSD (CAPS-5, PCL-5), depression (PHQ-8), and suicide-related (PHQ item 9) symptom severity from pre- to post-treatment were examined. Military personnel and first responders reported large reductions in CAPS-5 (d=1.96), PCL-5 (d=1.84), and PHQ-8 (d=1.46) scores and medium reductions in PHQ item 9 (d=0.5) scores. First responders' treatment outcomes were non-inferior to those of military personnel (ps>.013). Baseline hyperarousal symptom severity on the CAPS-5 was predictive of CAPS-5 outcomes (p=.011) but not of other treatment outcomes after controlling for baseline symptom severity on the other three CAPS-5 clusters (ps > .013). Findings demonstrate the effectiveness of the IOP for military personnel and first responders and suggest the potential applicability of existing EBT approaches used with military personnel for first responders. Future research should seek to facilitate the development and dissemination of EBT approaches for first responders and to identify predictors of outcomes for military personnel and different first responder types (e.g., firefighter, law enforcement, etc.).
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Master of Science (M.S.)
College of Sciences
Length of Campus-only Access
Masters Thesis (Campus-only Access)
Steigerwald, Victoria, "Predictors of PTSD, Depression, and Suicide-Related Outcomes for Military Personnel and First Responders in a Three-Week Intensive Outpatient Program for PTSD" (2022). Electronic Theses and Dissertations, 2020-. 1442.
Restricted to the UCF community until December 2023; it will then be open access.