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Table 3 Incidence of concussion in men’s and women’s soccer

From: Epidemiology of sports-related concussion in seven US high school and collegiate sports

  No. (%) of concussions Injury risk (incidence proportion) per seasona Injury rate (incidence rate) per 100,000 athlete-exposures
Athlete-seasons Risk (%)a 95 %CI CLR Athlete-exposures Rate 95 %CI CLR
Men’s soccer 54 (100) 4029 1.3 0.9, 1.6 1.7 285,931 18.9 13.9, 24.0 1.7
 Exposure type          
  Games 43 (79.6) –– –– –– –– 79,890 53.8 37.7, 69.6 1.9
  Practices 9 (16.7) –– –– –– –– 206,041 4.4 1.5, 7.2 4.8
 Setting          
  High school (n = 97) 49 (90.7) 6661 1.3 0.9, 1.7 1.9 257,835 19.0 13.7, 24.3 1.8
  College (n = 8) 5 (9.3) 368 1.4 0.2, 2.5 12.5 28,097 17.8 2.2, 33.4 15.2
 Position          
  Goalkeeper 11 (20.4) 292 3.4 1.3, 5.5 4.2 20,717 53.1 21.7,84.5 3.9
  Defense 16 (29.6) 1172 1.3 0.6, 1.9 3.2 83,279 19.2 9.8, 28.6 2.9
  Midfield 13 (24.1) 1308 1.0 0.5, 1.5 3.0 92,820 14.0 6.4, 21.6 3.4
  Forward 14 (25.9) 1196 1.2 0.6, 1.8 3.0 84,742 16.5 7.9, 25.2 3.2
Women’s soccer 35 (100) 3798 0.9 0.6, 1.2 2.0 259,678 13.5 9.0, 17.9 2.0
 Exposure type          
  Games 32 (91.4) –– –– –– –– 65,923 48.5 31.7, 65.4 2.1
  Practices 3 (8.6) –– –– –– –– 193,755 1.6 0.0, 3.3 0
 Setting          
  High school (n = 94) 31 (88.6) 3443 0.9 0.6, 1.2 2.0 231,221 13.4 8.7, 18.1 2.1
  College (n = 9) 4 (11.4) 355 1.1 0.03, 2.2 73 28,457 14.1 0.3, 27.8 99
 Positionb          
  Goalkeeper 8 (22.9) 353 2.3 0.7, 3.8 5.4 24,301 32.9 10.1,55.7 5.5
  Defense 7 (20) 1075 0.7 0.2, 1.1 5.5 73,967 9.5 2.5, 16.5 6.7
  Midfield 9 (25.7) 1423 0.6 0.2, 1.0 5.0 97,019 9.3 3.2, 15.3 4.8
  Forward 9 (25.7) 899 1.0 0.4, 1.7 4.3 61,095 14.7 5.1, 24.4 4.8
  1. CI confidence interval, CLR confidence limit ratio
  2. aInjury risk is the average probability that an athlete will be concussed during a season
  3. bFor women’s soccer, there were two concussions (6 %) with missing data for position