RCT of a brief phone-based CBT intervention to improve PTSD treatment utilization by returning service members.

Objectives: Many service members do not seek care for mental health and addiction problems, often with serious consequences for them, their families, and their communities. This study tested the effectiveness of a brief, telephone-based, cognitive-behavioral intervention designed to improve treatment engagement among returning service members who screened positive for posttraumatic stress disorder (PTSD).

Methods: Service members who had served in Operation Enduring Freedom or Operation Iraqi Freedom who screened positive for PTSD but had not engaged in PTSD treatment were recruited (N=300), randomly assigned to either control or intervention conditions, and administered a baseline interview. Intervention participants received a brief cognitive-behavioral therapy intervention; participants in the control condition had access to usual services. All participants received follow-up phone calls at months 1, 3, and 6 to assess symptoms and service utilization.

Results: Participants in both conditions had comparable rates of treatment engagement and PTSD symptom reduction over the course of the six-month trial, but receiving the telephone-based intervention accelerated service utilization (treatment engagement and number of sessions) and PTSD symptom reduction.

Conclusions: A one-time brief telephone intervention can engage service members in PTSD treatment earlier than conventional methods and can lead to immediate symptom reduction. There were no differences at longer-term follow-up, suggesting the need for additional intervention to build upon initial gains.