How long do we need to observe head injuries in hospital?

Abstract
Between 1974 and 1981, a total of 28,701 children in Wales [UK] were admitted to hospital for observation after head injury. Only 22 of 35 who subsequently developed intracranial hemorrhage presented for examination within 24 hof the injury. All of the patients had symptoms or signs clearly needing continued observation or treatment 6 h after the injury. Many children who are currently admitted to hospital could safely be discharged after a limited observation period.