Overcoming Adversity and Stress Injury Support (OASIS): Evaluation of Residential Treatment Outcomes for U.S. Service Members with Posttraumatic Stress Disorder

Abstract

Research on residential posttraumatic stress disorder (PTSD) treatment has predominantly focused on the U.S. veteran population, whereas limited research exists regarding active duty service members. The present study evaluated outcomes among service members who received treatment in the Department of Defense's only residential PTSD program, Overcoming Adversity and Stress Injury Support (OASIS). Over a 5-year period, 289 male service members with combat-related PTSD received treatment in the program. Service members completed an initial assessment and weekly PTSD and depression self-report measures during the 10-week program. Multilevel modeling results demonstrated statistically significant reductions in PTSD. On average, participants reported a 0.76-point reduction on the PTSD Checklist, B = 0.76, p < .001, for each additional week of treatment. Pretreatment symptom scores and fitness-for-duty status predicted PTSD symptoms across time. Weekly changes in depression symptoms were not statistically significant; however, a significant Time Pretreatment Depression Severity interaction emerged. Service members with higher baseline levels of depression severity showed larger reductions in depression symptom severity than those with lower levels, B = 0.02, p = .020, although a sizeable minority continued to retain symptoms at diagnostic levels. Depression symptom change was not related to any other treatment- or service-related variables. Differing trajectories were found between service members whose symptoms improved over the course of residential treatment and those who did not. The results indicate that there were larger improvements in PTSD than depression symptoms and highlight the need to optimize care provision for service members with severe PTSD or comorbid symptoms.

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Document Details

Document Type
Technical Report
Publication Date
Jan 29, 2021
Accession Number
AD1139440

Entities

People

  • Cameron T. Mccabe
  • Casey B. Kohen
  • Jessica R Watrous
  • Justin S. Campbell
  • Kristen H Walter

Organizations

  • Leidos
  • Naval Health Research Center

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Active Duty
  • Anxiety Disorders
  • Cognition
  • Department Of Defense
  • Department Of Veterans Affairs
  • Depression
  • Diseases And Disorders
  • Governments
  • Medical Personnel
  • Mental Disorders
  • Mental Health
  • Personnel Management
  • Psychiatry
  • Psychology
  • Psychotherapy
  • Rehabilitation
  • Traumatic Stress Disorder

Fields of Study

  • Medicine
  • Psychology

Readers

  • Mental Health of Military Veterans with Posttraumatic Stress Disorder (PTSD): Risk Factors, Prevalence, Symptoms, and Treatment.
  • Psychological Intervention/Treatment for Stress, Anxiety, PTSD, and Related Emotional and Cognitive Health Symptoms.