Adolescent Mental Health Risk post-mild Traumatic Brain Injury: Examination of Diagnostic codes in Electronic Health Records.

mTBI had a mean age of injury of 14.4 years (SD=3.3).

Females, higher socio-economic disadvantage, or a prior mental health diagnosis were found to have a higher risk of a mental health diagnosis in all three groups.

Small-town/rural or micropolitan residents were found to have a higher risk of a mental health diagnosis post-mTBI, but not in orthopedic injury or typically developing.

ADHD emerged as the most common condition; however, anxiety and trauma or stress-related disorders also continued to increase over time.