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AAP Grand Rounds 13:30-31 (2005) Effectiveness of Helmets in Skiers and SnowboardersSource: Hagel BE, Pless IB, Goulet C, et al. Effectiveness of helmets in skiers and snowboarders: case-control and case crossover study. BMJ. doi:10.1136/bmj.38314.480035.7C published 4 January 2005.
The authors from the University of Alberta, McGill University, and the Government of Québec evaluated skiing and snowboarding injuries that occurred at 19 ski areas in Québec, Canada from November 2001 to April 2002. Cases included people with an injury involving the head or neck while controls consisted of people with injuries to other body regions as reported by the ski patrol. Questionnaires were sent to the subjects (those without a known address received a telephone interview) to obtain information regarding demographic data, helmet use, and injury-related information. Parents responded for participants less than 15 years of age. Severe cases were defined as those evacuated by ambulance.
One thousand five hundred and seventy-six potential cases and 4667 potential controls were identified and contacted for further information. The overall response rate was 70% (69% for cases and 71% for controls) with similar response rates for skiers and snowboarders, so the
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