2018 (807 players) | 2019 (906 players) | IR | 95% CI | P value | ||||||||
n | IP% | I | 95% CI | n | IP% | I | 95% CI | |||||
All injuries | ma | 90 | 11.2 | 30.9 | 24.5–37.3 | 97 | 10.7 | 28.4 | 22.8–34.1 | 0.92 | 0.7 to 1.2 | 0.56 |
t-l | 89 | 11.0 | 30.6 | 24.2–36.9 | 83 | 9.2 | 24.3 | 19.1–29.5 | 0.79 | 0.6 to 1.1 | 0.13 | |
Head injuries | ma | 38 | 4.7 | 13.1 | 8.9–17.2 | 47 | 5.2 | 13.8 | 9.8–17.7 | 1.05 | 0.7 to 1.6 | 0.81 |
t-l | 37 | 4.6 | 12.7 | 8.6–16.8 | 36 | 4.3 | 10.5 | 7.1–14 | 0.83 | 0.5 to 1.3 | 0.42 | |
SRC | 26 | 3.2 | 8.9 | 5.5–12.4 | 21 | 2.3 | 6.1 | 3.5–8.8 | 0.69 | 0.4 to 1.2 | 0.20 |
I, incidence rate per 1000 hours; IP%, n/total registered players; IR, incidence rate ratio; ma, medical attention; SRC, sport-related concussion; t-l, time-loss.