Trajectories of Trauma Symptoms and Resilience in Deployed US Military Service Members: Prospective Cohort Study

Within the larger Millennium Cohort Study (MCS), this longitudinal study sampled nearly 8,000 deployed Service members from all branches of the military. Researchers investigated trajectories of posttraumatic stress disorder (PTSD) symptoms among Service members prior to and after deployment to Iraq and Afghanistan. Results suggest that the trajectories of PTSD symptoms were very similar for Service members with one or multiple deployments, and that the most common category by far was the stable “low symptoms of PTSD over time.”