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AAP Grand Rounds 13:28-29 (2005) Concussion Risk in High School AthletesSource: Schulz MR, Marshall SW, Mueller FO, et al. Incidence and risk factors for concussion in high school athletes, North Carolina, 19961999. Am J Epidemiology. 2004;160:937944.
Participants in contact or collision sports such as football, wrestling, and soccer risk trauma that could result in a mild brain injury (concussion). Using data collected as part of the North Carolina High School Athletic Injury Study (NCHSAIS), a prospective cohort study was performed of injury rates among 15,802 high school student-athletes followed from 19961999. Participants in 12 sports including football, cheerleading, wrestling, volleyball, baseball, softball, boys and girls basketball, boys and girls soccer, and boys and girls track were monitored, with selected varsity teams followed for 3 years. Gender breakdown in each sport was not given unless specified. A total of 137 males and 31 females experienced concussions. Concussions were defined as a "clinical syndrome characterized by immediate and transient post-traumatic impairment of neural functions, such as alteration of consciousness, disturbance of vision, equilibrium, etc., due to brain stem involvement."1 Concussions were defined based
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