the annual prevalence is very high. Most persons with MTBI am treated and released from emergency departments or do not seek healthcare for their injury. Although there are an approximately 1,365,000 emergency department visits for TBI annually, there are an unknown number of persons who sustain an MTBI and do not seek care (Faul et al., 2010); thus, the true incidence of this injury is unknown. MTBI may be caused by falls,