Finvers KA, Strother RT, Mohtadi N.
Clinical Journal of Sports Medicine, 1996 Apr;6(2):102-7
All children presenting to the Albert Children's Hospital Emergency Department from April 1991 to September 1993 were entered into the CHIRPP database. Standardized information collected included age and sex of child, nature, location and time of injury; whether any safety devices were being used; and the attending physician's determination of injuries and treatment rendered. Bicycle accidents resulted in 856 injuries. 13.7% of children were wearing a helmet at the time of injury. 76 serious head injuries were recorded. The risk of serious head injury was significantly greater when a helmet was not worn. There was no significant difference in serious injuries overall comparing helmeted and non-helmeted children.
Towner E, Dowswell T, Burkes M, Dickinson H, Towner J, Hayes M, 2002. Bicycle helmets - a review of their effectiveness: a critical review of the literature. Department for Transport Road Safety Research Report 30.