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Overall incidence in the past 3 years was 8.7%, which equates to a 2.9% annual average. 12/46 (26.0%) of 14–17-year-olds report a diagnosed concussion as a result of skiing or snowboarding. 2/63 (3.2%) of 18–23-year-olds. No diagnosed concussions were reported in the last 3 years by anyone older than 30 years.
