Cannabis use disorder and suicide attempts in Iraq/Afghanistan-era veterans.

The objective of the present research was to examine the association between lifetime cannabis use disorder (CUD), current suicidal ideation, and lifetime history of suicide attempts in a large and diverse sample of Iraq/Afghanistan-era veterans (N = 3233) using a battery of well-validated instruments. As expected, CUD was associated with both current suicidal ideation (OR = 1.683, p = 0.008) and lifetime suicide attempts (OR = 2.306, p < 0.0001), even after accounting for the effects of sex, posttraumatic stress disorder, depression, alcohol use disorder, non-cannabis drug use disorder, history of childhood sexual abuse, and combat exposure. Thus, the findings from the present study suggest that CUD may be a unique predictor of suicide attempts among Iraq/Afghanistan-era veterans; however, a significant limitation of the present study was its cross-sectional design. Prospective research aimed at understanding the complex relationship between CUD, mental health problems, and suicidal behavior among veterans is clearly needed at the present time.

Kimbrel NA ，Newins AR ，Dedert EA ，Van Voorhees EE ，Elbogen EB ，Naylor JC ，Ryan Wagner H ，Brancu M ，VA Mid-Atlantic MIRECC Workgroup ，Beckham JC ，Calhoun PS ... -  《-》

Cannabis Use Disorder and Post-Deployment Suicide Attempts in Iraq/Afghanistan-Era Veterans.

Adkisson K ，Cunningham KC ，Dedert EA ，Dennis MF ，Calhoun PS ，Elbogen EB ，Beckham JC ，Kimbrel NA ... -  《-》

Nonsuicidal self-injury and suicide attempts in Iraq/Afghanistan war veterans.

The present study examined the association between history of nonsuicidal self-injury (NSSI) and history of suicide attempts (SA) among 292 Iraq/Afghanistan veterans, half of whom carried a lifetime diagnosis of posttraumatic stress disorder (PTSD). Consistent with hypotheses, veterans who reported a history of NSSI were significantly more likely to report a history of SA than veterans without a history of NSSI. In addition, logistic regression demonstrated that NSSI remained a significant predictor of SA even after a wide range of covariates (i.e., combat exposure, traumatic brain injury, PTSD, depression, alcohol dependence) were considered. Taken together, these findings suggest that clinicians working with veterans should include NSSI history as part of their standard risk assessment battery.

Kimbrel NA ，DeBeer BB ，Meyer EC ，Gulliver SB ，Morissette SB ... -  《-》

The Impact of Cannabis Use Disorder on Suicidal and Nonsuicidal Self-Injury in Iraq/Afghanistan-Era Veterans with and without Mental Health Disorders.

The objective of this study was to assess the association between cannabis use disorder (CUD) and self-injury among veterans. As expected, after adjusting for sex, age, sexual orientation, combat exposure, traumatic life events, traumatic brain injury, posttraumatic stress disorder, depression, alcohol use disorder, and noncannabis drug use disorder, CUD was significantly associated with both suicidal (OR = 3.10, p = .045) and nonsuicidal (OR = 5.12, p = .009) self-injury. CUD was the only variable significantly associated with self-injury in all three models examined. These findings are consistent with prior research among civilians and suggest that CUD may also increase veterans' risk for self-injurious behavior.

Kimbrel NA ，Meyer EC ，DeBeer BB ，Gulliver SB ，Morissette SB ... -  《-》

A 12-Month prospective study of the effects of PTSD-depression comorbidity on suicidal behavior in Iraq/Afghanistan-era veterans.

The present study used validated clinical interviews to assess the effect of comorbid PTSD-depression on suicidal behavior over the course of 12 months in 309 Iraq/Afghanistan-era veterans. Logistic regression models demonstrated that comorbid PTSD-depression was a statistically significant predictor of suicide attempts at the 12-month follow-up in both the total sample and in the subset of veterans with PTSD/depression (n=98). In contrast, gender, age, race, sexual orientation, and baseline history of suicide attempts did not have significant effects. These findings suggest that comorbid PTSD-depression may be a significant risk factor for future suicidal behavior in veterans.

Kimbrel NA ，Meyer EC ，DeBeer BB ，Gulliver SB ，Morissette SB ... -  《-》