This study aims at showing if and to what extent injury severity in frontal car crashes in creases with the age of front seat occupants. Data on 2,658 belted drivers and front seat passengersin Volvo privatec ar series 140, 240 and 740/760, involved in frontal crashes were extracted from the Volvo Car Crash Register.

The results show that the risk of injury resulting in "medical observation" does not increase systematically with age. However, the risk of fracture with any localization is more than three times higher among those aged 65-74 as compared to those aged 18-24, and the risk of fracture in the rib cage is nearly eleven times higher among the older as compared to the younger age group. It can be concluded that the incidence of specific types of injuries —as exemplified with fractures of any localizaton and fractures in the rib cage— increases with increasing age.