• Johan Styrke, Britt-Marie Stålnacke, Peter Sojka, and Ulf Björnstig.
• Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden. jonste00@student.umu.se
• J. Neurotrauma. 2007 Sep 1;24(9):1425-36.

AbstractThe aim was to describe epidemiological and medical aspects of 449 cases of traumatic brain injury (TBI) from a well-defined geographical area with a population of 137,000 inhabitants. An episode of disturbed consciousness was a prerequisite for inclusion in the study. The incidence of TBI was 354/100,000 inhabitants. Median age was 23 years, range 0-91 years; 55% were men and 45% were women; 33% children 0-14 years, 50% adults 15-64 years, and 17% elderly persons 65-91 years old. Severity classification was based on Glasgow Coma Scale (GCS) on arrival; mild TBI 97% (GCS 13-15), moderate 1% (GCS 9-12), and severe 2% (GCS 3-8). The most common injury events were falls (55%) and vehicle-related events (30%). The percentage of falls was high among children and elderly persons but among adults vehicle-related injury events were also prominent. At least 17% of all patients were under the influence of alcohol, especially adult male bicyclists. CT was performed on 163 cases (36%) revealing 34 cases with intracranial hemorrhage (ICH) which is 21% of the examined or 8% of all the injured. The rate of ICH increased with increasing age (from 3% among children to 17% among the elderly persons) and also increased with decreasing GCS from 6% in the group of mild TBI to 60% among those with severe TBI. Attention should be directed to acute management of mild TBI in order to detect potentially dangerous ICH as well as to preventive actions against falls and vehicle related accidents.

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