Insomnia is the Most Commonly Reported Symptom and Predicts Other Symptoms of Post-Traumatic Stress Disorder in U.S. Service Members Returning From Military Deployments

Service members who had recently returned from deployment were screened at the Naval Medical Center in San Diego over a two year period. This study focused on rates of posttraumatic stress disorder (PTSD) symptoms upon initial return and 3 months later. Insomnia was the most common PTSD symptom reported and had the highest average severity score of any PTSD symptom.