Psychological Services Vol. 15, Iss. 2,  (May 2018): 230-237. Understanding the links between posttraumatic stress disorder (PTSD) symptoms and functional impairment is essential for assisting veterans in transitioning to civilian life. Moreover, there may be differences between men and women in the relationships between PTSD symptoms and functional impairment. However, no prior studies have examined the links between functional impairment and the revised symptom clusters as defined in the Diagnostic and Statistical Manual of Mental Disorders, 5th ed. (DSM–5; American Psychiatric Association, 2013) or whether the associations between PTSD symptom clusters and functional impairment differ by gender.. To read the full article, log in using your NHS OpenAthens details.