Clinical Research Directory

Inclusion Criteria * Aged 65 years or older * Treated for mild TBI (defined below) at the R Adams Cowley Shock Trauma Center (STC) or at one of six University of Maryland Affiliated Hospitals within 72 hours of injury * Mild TBI was defined as: * Traumatically induced physiological disruption of brain function, as manifested by at least one of the following 1) loss of consciousness ≤30 minutes, post-traumatic amnesia \<24 hours, observed or self-reported transient confusion, disorientation, or impaired consciousness, or neurologic deficit as defined by a Glasgow Coma Scale (GCS) score of 13-14 on admission. * GCS of 15 with no other evidence of mild TBI was also accepted with positive computed tomography image. Exclusion criteria * Injury to any other body region resulting in an abbreviated injury scale (AIS) score \>2 * Anticipation that patient would not be ambulatory at 2-weeks post-injury * History of dementia as determined by patient/proxy report or medical history * Non-ambulatory pre-injury * No available proxy * Not English speaking * Prisoners * Live \>55 miles from the STC.