The Relationship Between Course of PTSD Symptoms in Deployed U.S. Marines and Degree of Combat Exposure

Male Marines participated in a study examining the longitudinal course of posttraumatic stress disorder (PTSD) symptoms after combat exposure. Marines were split into three groups based on level of combat exposure (low, medium, and high). Distinct trajectories within each level of combat exposure emerged which represented fluctuations in PTSD symptoms over time.