The accuracy of mechanism of injury criteria and trauma scores as triage criteria for identifying major trauma patients has been determined from the experience at one trauma center treating 2,500 patients over a 2 year period. Death of the other occupant of the same vehicle as the patient and patient extrication taking longer than 20 minutes were determined to be sufficiently accurate triage criteria. Trauma scores of 14 or less were more accurate than trauma scores of 12 or less.