Current Research on Matching Trauma-Focused Therapies to Veterans: A Scoping Review

Trauma-focused (psycho)therapies (TFTs) are often used to treat post-traumatic stress disorder (PTSD) of (military) veterans, including prolonged exposure (PE), cognitive processing therapy (CPT), and eye movement desensitization and reprocessing. However, research thus far has not conclusively determined predictors of TFTs' success in this population. This scoping review's objectives are 1) to explore whether it is possible, based on currently available evidence, to match TFTs to veterans to maximize their outcomes, (2) to identify possible contraindications and adaptations of TFTs for this population, and (3) to identify gaps in the literature to guide future research.

Standard scoping review methodology was used. "White" and "gray" literature searches resulted in 4963 unique items identified. Following title and abstract screening and full-text analysis, 187 sources were included in the review. After data extraction, a narrative summary was used to identify common themes, discrepancies between sources, and knowledge gaps.

Included publications most often studied CPT and PE rather than eye movement desensitization and reprocessing. These TFTs were at least partly effective with mostly moderate effect sizes. Attrition rates were slightly higher for PE versus CPT. There was variance in the methodological quality of the included studies.

The current literature on TFTs to treat PTSD in veterans contains several knowledge gaps, including regarding treatment matching. Future research should examine effectiveness of these treatments using multiple sources of outcomes, longer time periods, combination with other treatment, outcomes outside of PTSD symptoms (such as functioning), and resilience.