Preinjury Emotional-Behavioral Functioning of Children With Lingering Problems After Mild Traumatic Brain Injury.

This study aimed to characterize preinjury emotional-behavioral functioning in pediatric patients with lingering problems after mild traumatic brain injury (TBI). The clinical case series design included 278 patients 8-17 years old. Parents retrospectively rated children's preinjury emotional-behavioral functioning on a broadband questionnaire. The rate of clinically significant preinjury anxiety was elevated compared with national norms. The number of previous TBIs was associated with clinically significant preinjury externalizing problems, suggesting a link between externalizing disorders and mild TBI exposure. Premorbid emotional-behavioral difficulties may play an important role in the establishment or maintenance of lingering symptoms after pediatric mild TBI.