The present study was a multicentre prospective, randomized, study of children who serially presented to emergency department with head injury.

A total of 9,460 children were seen between 1996 and 2000, and it sample was divided in two groups: Phase I (1996-98) with 4,690 patients and Phase II (1999-2000) with 4,770 patients. Each child was seen by medical staff and evaluated during acute care. A Standardized database sheet subject was completed to include general demographics, medical status, Glasgow Coma Score and Paediatrics Score, neuroradiology study. Indicators consisted in frequency counts and tabulations. On follow-up each subject was given a Glasgow Outcome Score and asked set standardized questions considered detect functional level and quality of life. The baseline information and subsequent outcome score were compared and evaluated.