INTRODUCTION: Previous research has demonstrated an association between military sexual trauma and risk for suicide; however, risk for self-directed violence such as suicide attempt or nonsuicidal self-injury following military sexual trauma is understudied. This study examines the relationship between military sexual trauma and serious self-directed violence resulting in hospitalization, as well as whether this relationship differs by sex. METHODS: Participants were 750,176 Operations Enduring Freedom/Iraqi Freedom/New Dawn veterans who were enrolled in Veterans Health Administration care during the period of October 1, 2001-September 30, 2014 and who were screened for military sexual trauma. Data were analyzed in 2019. Bivariate analyses and Cox proportional hazards regression models were employed. RESULTS: Women veterans were more likely to screen positive for military sexual trauma (21.33% vs 1.63%), and women and men were equally likely to experience serious self-directed violence (1.19% women vs 1.18% men). Controlling for demographic variables and psychiatric morbidity, military sexual trauma predicted serious self-directed violence for both men and women. Further, men with military sexual trauma were 15% less likely to experience self-directed violence compared with women with military sexual trauma (hazard ratio=0.85, 95% CI=0.74, 0.98). CONCLUSIONS: Military sexual trauma is associated with risk for serious self-directed violence for both men and women veterans, and the relationship may be pronounced among women. Results underscore the importance of incorporating military sexual trauma into treatment and preventative efforts for self-directed violence.

PURPOSE: Trauma has been associated with risky sexual behavior in diverse populations. However, little is known about this association among men and women veterans. This study hypothesized that 1) a history of trauma would be associated with risky sexual behavior among men and women veterans, 2) interpersonal trauma would predict risky sexual behavior among women, whereas noninterpersonal trauma would predict risky sexual behavior among men, and 3) military-related trauma would constitute additional risk. Using data from 567 women and 524 men veterans enrolled at the Veterans Health Administration, this study investigated the association between trauma-related experiences and risky sexual behavior in the last 12 months. Risk and protective factors that have been frequently associated with sexual behavior in previous research were also included in the model. METHODS: This study was drawn from the Women Veterans Cohort Study, a national survey of veterans. Bivariate and multivariate analyses were performed after multiple imputation for missing data. RESULTS: Predictive factors associated with risky sexual behavior differed between men and women veterans. Among women, childhood sexual victimization and intimate partner violence were associated with risky sexual behavior. Among men, binge drinking was the single significant risk factor. Military exposures were not significantly associated with risky sexual behavior in either men or women. CONCLUSIONS: This study lays the groundwork for theory-generating research into the psychological underpinnings of noted associations and underscores the importance of integrated health services to address the range of issues affecting sexual behavior and related health outcomes.