Nelson LD, et al. - Using data from a Transforming Research and Clinical Knowledge in Traumatic Brain Injury (TRACK-TBI) study, a cohort study of 1,453 patients was carried out to understand the natural history of daily function recovery after mild traumatic brain injury (mTBI) vs peripheral orthopedic traumatic injury in the first 12 months postinjury. Using clinical computed tomographic (CT) scans, they also evaluated if the presence (CT+) or absence (CT−) of acute intracranial findings in the mTBI group was associated with results. The control group included patients with peripheral orthopedic trauma injury. Impairment 12 months after injury was reported by 53% of participants with mild traumatic brain injury vs 38% of those with orthopedic trauma. While patients without abnormalities did report problems at 12 months, patients with intracranial abnormalities had the poorest outcomes. More systematic follow-up of patients with mTBI is needed to reduce the risk of chronic problems after mTBI.