The Relationship between Suicidal Responses and Traumatic Brain Injury and Severe Insomnia in Active Duty, Veteran, and Civilian Populations

This study examined how a positive traumatic brain injury (TBI) screening and insomnia severity relate to suicidal outcomes across active duty, veteran, and civilian samples. Data were used from 3,993 participants from 19 studies. We conducted a series of analyses by group to identify which significantly differed on the variables of interest. TBI and insomnia each had independent relationships with outcomes over and above the impact of the other factor. Veterans presented as clinically worse across the outcomes. However, the relationship between insomnia and suicidal responses was stronger for active duty military compared to veterans. Continued research on TBIs and insomnia severity across groups will improve quality of care for those at risk of suicide.