Psychosocial predictors of military misconduct.

The objective of this longitudinal study was to determine psychosocial predictors of military misconduct in a cohort of Marine Corps war veterans. The study included data from 20,746 male Marines who completed a life history questionnaire during initial basic training and were subsequently deployed to a combat zone. Associations between psychosocial variables, psychiatric diagnoses, and subsequent misconduct outcomes were analyzed using Cox proportional hazards regression. The strongest predictors of misconduct outcomes (bad conduct discharges and military demotions) were psychiatric diagnoses and young age at first combat deployment. The results indicate that combat-related psychological disorders may manifest in numerous harmful ways, including impulsive, disruptive, and antisocial behavior. We recommend that the association between misconduct and psychiatric disorders be more explicitly acknowledged in research and treatment efforts involving military war veterans and other trauma victims.