The Afro-American population has a higher rate of TBI than other ethnic groups in the United States. Most of these incidents are related to homicide. Another significant risk factor in the incidence of brain injury is the occurrence of a previous brain injury. After a TBI incident, the potential risk for subsequent multiple injuries is extremely common. Children are at a particular risk of bicycle-related injuries and deaths.
Boys are more likely than girls to sustain a brain injury.
To go directly to a section, click on a topic below. Head Injury Task Force Reports, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 1990. To go directly to a section, click on a topic below. It is, however, estimated based on epidemiological studies using different statistical methodologies and approaches. Worldwide TBI mortality rates range from about 15 to 30 per 100,000 population annually.