Findings from a major U.S. survey of persons hospitalized with head injuries.

In 1974, work began on the first national survey of head and spinal cord injuries in the United States. The survey was a project of the National Institute of Neurological and Communicative Disorders and Stroke of the Public Health Service. This article presents highlights of the survey, particularly the findings about head injuries (that is, brain injuries). The survey population consisted of people admitted to U.S. hospitals as inpatients between January 1, 1970, and December 31, 1974. To be medically eligible, patients must have experienced physical injury (except birth trauma) caused by an external, mechanical force. Probability sampling was used in a three-stage plan to select appropriate hospital records. Findings of the head and spinal cord injury survey follow: Of all age groups, 15- to 24-year-olds had the highest rate of head injuries. Males had a rate of head injuries more than twice that of females. Head injuries occurred most often on Fridays, Saturdays, and Sundays. The chief cause of head injuries was motor vehicle accidents