Do unit and post-deployment social support influence the association between deployment sexual trauma and suicidal ideation?

Deployment sexual trauma is associated with post-deployment suicidal ideation. No studies have examined the role of social support in this association. The present study examined if perceived unit support and post-deployment support influenced the association between deployment sexual trauma and suicidal ideation. 824 post-9/11 veterans (480 men, 344 women) from the Survey of Experiences of Returning Veterans completed the Deployment Risk and Resilience Inventory-2 and Columbia-Suicide Severity Rating Scale. Age, possible depression, posttraumatic stress disorder symptoms, and lifetime suicide attempt were covaried. Among men, post-deployment support moderated the association between deployment sexual trauma and suicidal ideation; deployment sexual trauma predicted suicidal ideation only for men reporting low post-deployment support. Among women, post-deployment support mediated the association between deployment sexual trauma and suicidal ideation. Unit support neither moderated nor mediated the association between deployment sexual trauma and suicidal ideation. Among men who experience deployment sexual trauma, those with low perceived post-deployment support may be at particularly elevated risk for suicidal ideation and may benefit from more intensive monitoring and interventions that bolster social support. Increasing perceived post-deployment support for women who experience deployment sexual trauma is also warranted. Determining optimal ways to strengthen post-deployment support for sexual trauma survivors is essential.