Understanding the relationship of perceived social support to post-trauma cognitions and posttraumatic stress disorder

► Social support predicted posttraumatic stress disorder (PTSD) symptom maintenance. ► Social support was associated with negative post-trauma cognitions (PTC). ► Social support did not predict PTSD maintenance when jointly assessed with PTC. ► Negative social interaction did not predict PTSD maintenance when assessed with PTC. ► Positive social interaction did predict PTSD maintenance when assessed with PTC.