Findings  This longitudinal cohort study of 9650 enlisted soldiers with a documented suicide attempt and 153 528 control person-months found no history of mental health diagnosis in more than one-third of those who attempted suicide. Risk factors for attempt (sociodemographic, service related, physical health care, injury, subjection to crime, crime perpetration, and family violence) were similar regardless of previous diagnosis, although the strength of associations differed.. Please contact the library to request a copy of this article - http://bit.ly/1Xyazai