Traumatic Brain InjuryTraumatic brain injury (TBI) is a serious public health problem in the United States. Each year, traumatic brain injuries contribute to a substantial number of deaths and cases of permanent disability. Recent data shows that, on average, approximately 1.7 million people sustain a traumatic brain injury annually.1
A TBI is caused by a bump, blow or jolt to the head or a penetrating head injury that disrupts the normal function of the brain. Not all blows or jolts to the head result in a TBI. The severity of a TBI may range from “mild,” i.e., a brief change in mental status or consciousness to “severe,” i.e., an extended period of unconsciousness or amnesia after the injury. The majority of TBIs that occur each year are concussions or other forms of mild TBI.2
CDC’s research and programs work to prevent TBI and help people better recognize, respond, and recover if a TBI occurs.
- Traumatic Brain Injury in the United States: Emergency Department Visits, Hospitalizations, and Deaths, 2002-2006. Available as [PDF 2MB ] or [Word 482K ].
- New Report – Surveillance for Traumatic Brain Injury–Related Deaths — United States, 1997–2007, MMWR Surveillance Summaries
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