Obsessive-compulsive disorder (OCD) is considered one of the most debilitating disorders worldwide. Data suggests that trauma may be a significant source of not only posttraumatic stress disorder (PTSD), but also OCD. An epidemiologic study of the general population found the risk for OCD to be increased 10-fold in persons with PTSD. The National Vietnam Veterans Readjustment Study found the prevalence of OCD to be 5.2% in war-zone veterans and other studies highlighted PTSD-OCD comorbidity rates ranging from 41% to 70%. However, the frequency of diagnosed OCD is low among veterans (0.6%), and veterans with OCD receive little mental healthcare after diagnosis (mean: 3.8 sessions). The present study examined obsessive-compulsive (OC) tendencies in a sample of veterans with PTSD seeking treatment in a Veterans Affairs (VA) PTSD program between 2011 and 2013. Of the 318 veterans with PTSD included in the current study, 125 (36%) also reported OC tendencies. Data analyses revealed that participants with PTSD who showed evidence of OC tendencies demonstrated more severe PTSD symptoms, higher anxiety sensitivity, and lower cognitive flexibility than participants with PTSD without comorbid OC tendencies; no differences regarding posttraumatic growth were found between the two groups. This is a preliminary study aiming to assess OC tendencies in a sample of veterans with PTSD and expand on the limited existing literature on OCD-PTSD comorbid presentation among veterans.
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