title: One-Year Concussion Prevalence in Marion County, Florida High School Athletes.
abstract: OBJECTIVE
  The purpose of this study was to evaluate data on concussion prevalence in 1 geographic location and to identify which sports have a higher prevalence of concussion in the Marion County, Florida, school district.
  
  
  METHODS
  High school athletic trainers in Marion County, Florida, are required to compile statistics related to number of participants and concussions sustained in the county school district during each season. They provided the data for the 2011-2012 school year to independent analysts with the permission of the athletic director. The study evaluated 3689 student-athletes (2102 male, 1587 female), and 34 concussions (24 male, 10 female) were reported. Concussions were self-reported by the athletes and diagnosed by trainers on field or by follow-up after physician referral. Consent was included in consent to participate in interscholastic athletics, and all athletes enrolling in a sport during the 2011-2012 academic year were included regardless of participation level. Number of participants and concussions sustained was calculated per 100 participants for each sport and in total for 1 year.
  
  
  RESULTS
  The percentages of concussions per sport were as follows: basketball, 1.83%; cheerleading, 0.40%; football, 2.83%; soccer, 1.84%; track and field, 0.44%; and wrestling, 0.70%. Ten additional sports were included in the study but had no reported concussions. Total prevalence for the district was 0.922% (1.14% male, 0.63% female) during a 1-year period.
  
  
  CONCLUSIONS
  The concussion prevalence in this district during the 2011-2012 school year was just under 1%. The sport reporting the highest prevalence was football, followed by soccer. Females reported a higher rate of concussions than males in sports played by both male and female participants. This highlights the need to minimize risk for concussion, especially in noncollision contact sports, and in female athletes.
authors.affiliation: Palmer College of Chiropractic, Port Orange, FL.
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Young
authors.affiliation: Private Practice, Chiropractic USA, Ocala, FL.
authors.forename: Mark
authors.initials: M
authors.lastname: Chen
keywords: Adolescent; Brain concussion; Sports