Background Our goal was to examine the association between moral injury, mental health, and suicide attempts during military service and after separation by gender in post-9/11 veterans. Methods A nationally representative sample of 14057 veterans completed a cross-sectional survey. To examine associations of exposure to potentially morally injurious events (PMIEs; witnessing, perpetrating, and betrayal) and suicidal self-directed violence, we estimated two series of multivariable logistic regressions stratified by gender, with peri- and post-military suicide attempt as the dependent variables. Results PMIE exposure accounted for additional risk of suicide attempt during and after military service after controlling for demographic and military characteristics, current mental health status, and pre-military history of suicidal ideation and attempt. Men who endorsed PMIE exposure by perpetration were 50% more likely to attempt suicide during service and twice as likely to attempt suicide after separating from service. Men who endorsed betrayal were nearly twice as likely to attempt suicide during service; however, this association attenuated to non-significance after separation in the fully adjusted models. In contrast, women who endorsed betrayal were over 50% more likely to attempt suicide during service and after separation; PMIE exposure by perpetration did not significantly predict suicide attempts before or after service among women in the fully adjusted models. Conclusions Our findings indicate that suicide assessment and prevention programs should consider the impact of moral injury and attend to gender differences in this risk factor in order to provide the most comprehensive care.

Adverse childhood experiences (ACEs) are robustly associated with physical and mental health problems over the life span. Relatively limited research has examined the breadth of ACEs among military veteran populations, for whom ACEs may be premilitary traumas associated with suicidal ideation and attempt. Using data from the Comparative Health Assessment Interview Research Study, a large national survey sponsored by the U.S. Department of Veterans Affairs, this investigation examined the prevalence of 22 self-reported potentially traumatic experiences before the age of 18 (i.e., ACEs) among veterans and nonveterans and estimated the association of ACEs with suicidal ideation and attempt at age 18 or older. All analyses were weighted to account for complex sampling design and stratified by gender. The study sample included 9,571 veteran men, 3,143 nonveteran men, 5,543 veteran women, and 1,364 nonveteran women. Veteran men reported greater average frequency of ACEs than nonveteran men (2.7 ACEs vs. 2.3 ACEs, respectively, p < .001); 11.1% of veteran men indicated >6 ACEs compared with 7.3% of nonveteran men (p < .001). Veteran women reported greater average frequency of ACEs than nonveteran women (3.1 ACEs vs. 2.4 ACEs, respectively, p < .001). Among women, more veterans than nonveterans reported >6 ACEs (14.9% vs. 8.6%, respectively, p < .001). The strongest correlate of suicide attempt at age 18 or older for veteran men was having >6 ACEs (adjusted odds ratio, aOR = 4.20, 95%CI = 2.72–6.49); for veteran women, the strongest correlate was suicidal ideation or attempt before age 18 (aOR = 5.37, 95%CI = 4.11–7.03). Suicide prevention research, policy, and practice should address ACEs among veterans as salient premilitary risk factors.

Background: Rising US suicide rates are particularly notable among military veterans, especially women. It is unknown whether these differences extend to suicidal ideation (SI) and suicide attempts (SA), which are major predictors of suicide. Literature comparing SI and SA prevalence and timing of onset between veterans and nonveterans is limited. Objective: The objective of this study was to estimate and compare SI and SA prevalence and onset timing relative to age and military service between veterans and nonveterans, by gender. Research Design: Gender-stratified analysis of cross-sectional data from the Comparative Health Assessment Interview Study. Generalized estimating equations logistic regression was used to compare prevalence and onset of SI and SA between time periods and across groups, controlling for years at risk in each time period. Subjects: National sample of 15,082 post-9/11 veterans (36.7% women) and 4638 nonveterans (30.5% women). Measures: Columbia-Suicide Severity Rating Scale adapted to assess SI and SA relative to age (less than 18 y, 18 y and above) and military service (pre-, during, and post-military). Results: Veteran men experienced significantly higher odds of lifetime SI compared with nonveteran men (odds ratio=1.13), whereas veteran women experienced significantly higher odds of lifetime SA compared with nonveteran women (odds ratio=1.35). SI and SA onset varied considerably for veterans and nonveterans and by gender within veteran groups. Conclusions: Veterans and nonveterans appear to differ in periods of risk for SI and SA. Furthermore, gender differences in SI and SA onset for veterans highlight the need for gender-informed veteran suicide prevention strategies that target periods of highest risk.

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