Table 1 Injury rate ratios for day 1 versus day 2
Athlete participation hoursNumber of injuriesInjury rate*Rate ratio (95% CI)Severity†
Total
    Day 15438.1437.911.17 (0.72 to 1.92)3.5
    Day 23701.0256.752.3
Boys
    Day 12141.5219.81‡2.82 (1.06 to 7.48)2.5
    Day 21438.753.480.0
Girls
    Day 13296.7226.670.76 (0.41 to 1.38)4.5
    Day 22262.4208.842.9
<14 years
    Day 13648.9256.851.32 (0.66 to 2.63)2.4
    Day 22311.5125.191.3
>14 years
    Day 11789.21810.061.08 (0.53 to 2.20)5.1
    Day 21389.6139.363.2
  • *Rate is per 1000 athlete participation hours.

  • †Mean number of days missed.

  • ‡Statistically significant difference between day 1 and day 2 (p<0.05).