Table 2. .
Comparison of Concussion Rates Among High School Athletes by Event Type, National Athletic Treatment, Injury and Outcomes Network (NATION), 2011–2012 Through 2013–2014 Academic Yearsa
| Sport |
Boys Versus Girls: Rate Ratio (95% Confidence Interval) |
||
| Competitions |
Practices |
Overall |
|
| Baseball and softball | 5.21 (2.24, 12.09)b | 3.50 (1.73, 7.08)b | 4.14 (2.42, 7.09)b |
| Basketball | 2.14 (1.48, 3.08)b | 1.29 (0.86, 1.93) | 1.76 (1.34, 2.30)b |
| Lacrosse | 0.67 (0.44, 1.03) | 1.16 (0.70, 1.91) | 0.83 (0.60, 1.15) |
| Soccer | 1.51 (1.07, 2.15)b | 2.00 (1.20, 3.35)b | 1.53 (1.15, 2.05)b |
| Tennis | NA | 4.35 (1.21, 15.59)b | 2.16 (0.80, 5.85) |
| Indoor track and field | NA | 2.56 (0.64, 10.25) | 3.81 (1.03, 14.08)b |
| Outdoor track and field | 0.96 (0.22, 4.29) | 2.53 (0.63, 10.13) | 1.63 (0.61, 4.38) |
| Totalc | 1.46 (1.20, 1.77)b | 1.75 (1.39, 2.20)b | 1.56 (1.34, 1.81)b |
Abbreviation: NA, not applicable.
a
Sports in which both sexes had concussion counts <5 are not shown (ie, crew, cross-country, golf, swimming and diving).
b
Statistically significant (ie, 95% confidence interval does not include 1.00).
c
Only includes sports in which both sexes participated (ie, baseball or softball, basketball, crew, cross-country, golf, lacrosse, soccer, swimming and diving, tennis, indoor track and field, and outdoor track and field).