Table 2

Number and incidence (injuries per 1000 playing hours) of all and acute floorball injuries and incidence rate ratio in the intervention group versus control group

Intervention group N, incidence (95% CI)Control group N, incidence (95% CI)Incidence rate ratio (95% CI)P value
All injuries
 Total*197, 12.1 (10.4 to 14.0)152, 18.7 (15.8 to 22.1)0.65 (0.52 to 0.81) <0.001
 Female76, 12.8 (10.0 to 16.3)31, 16.6 (11.2 to 24.4)0.77 (0.49 to 1.22)0.265
 Male121, 11.7 (9.8 to 14.1)121, 19.3 (16.1 to 23.2)0.61 (0.47 to 0.79) <0.001
Lower limb injuries
 Total*155, 9.5 (8.1 to 11.2)126, 15.5 (12.9 to 18.6)0.62 (0.48 to 0.79) <0.001
 Female58, 9.7 (7.3 to 12.9)27, 14.4 (9.5 to 21.7)0.68 (0.41 to 1.12)0.126
 Male97, 9.4 (7.7 to 11.5)99, 15.8 (12.9 to 19.3)0.60 (0.45 to 0.79) <0.001
Knee injuries
 Total*87, 5.4 (4.3 to 6.7)57, 7.0 (5.4 to 9.2)0.76 (0.54 to 1.08)0.127
 Female34, 5.8 (4.0 to 8.3)12, 6.3 (3.4 to 11.7)0.91 (0.45 to 1.86)0.798
 Male53, 5.2 (3.9 to 6.8)45, 7.2 (5.3 to 9.7)0.72 (0.48 to 1.08)0.108
All time loss injuries
 Total*79, 4.9 (3.9 to 6.1)64, 7.7 (6.0 to 9.9)0.64 (0.45 to 0.90) 0.010
 Female28, 4.6 (3.3 to 6.5)9, 4.8 (2.6 to 8.8)0.96 (0.48 to 1.94)0.916
 Male51, 4.9 (3.7 to 6.6)55, 8.7 (6.6 to 11.5)0.57 (0.38 to 0.85) 0.005
Acute injuries
 Total*52, 3.2 (2.4 to 4.2)47, 5.8 (4.3 to 7.7)0.55 (0.37 to 0.83) 0.004
 Female21, 3.5 (2.3 to 5.4)9, 4.8 (2.5 to 9.3)0.73 (0.33 to 1.60)0.431
 Male31, 3.0 (2.1 to 4.3)38, 6.0 (4.4 to 8.4)0.50 (0.31 to 0.81) 0.005
Acute time loss injuries
 Total*28, 1.7 (1.2 to 2.5)25, 3.1 (2.1 to 4.5)0.55 (0.33 to 0.94) 0.029
 Female11, 1.8 (1.0 to 3.2)6, 3.2 (1.5 to 6.9)0.57 (0.22 to 1.50)0.254
 Male17, 1.7 (1.0 to 2.6)19, 3.0 (2.0 to 4.7)0.54 (0.29 to 1.03)0.062
  • P values in bold type are statistically significant.

  • *Model adjusted for sex.