Location and injury type | Rate per 1000 player-hours (95% CI)* | |||
Location | Body checking (n=213) | No body checking (n=40) | ||
N (/213) | Rate | N (/40) | Rate | |
Head/face† | 70 | 3.78 (2.76 to 5.19) | 18 | 1.94 (1.13 to 3.34) |
Neck/throat | 3 | 0.18 (0.04 to 0.53) | 0 | 0.00 (0.00 to 0.47) |
Shoulder/clavicle | 38 | 2.31 (1.64 to 3.17) | 2 | 0.26 (0.03 to 0.93) |
Arm/elbow/forearm | 8 | 0.49 (0.21 to 0.96) | 1 | 0.13 (0.00 to 0.71) |
Wrist/hand | 21 | 1.28 (0.79 to 1.95) | 2 | 0.26 (0.03 to 0.93) |
Back/side | 9 | 0.55 (0.25 to 1.04) | 0 | 0.00 (0.00 to 0.47) |
Chest/ribs/abdomen | 5 | 0.30 (0.10 to 0.71) | 0 | 0.00 (0.00 to 0.47) |
Pelvis/hips/groin/upper leg | 6 | 0.37 (0.13 to 0.79) | 0 | 0.00 (0.00 to 0.47) |
Knee | 20 | 1.22 (0.74 to 1.88) | 4 | 0.51 (0.14 to 1.31) |
Lower leg/ankle/foot | 9 | 0.55 (0.25 to 1.04) | 2 | 0.26 (0.03 to 0.93) |
Other | 0 | 0.00 (0.00 to 0.22) | 0 | 0.00 (0.00 to 0.47) |
Missing/unknown | 24 | 1.46 (0.94 to 2.17) | 11 | 1.41 (0.70 to 2.53) |
Type | ||||
Contusion | 13 | 0.79 (0.42 to 1.35) | 2 | 0.26 (0.03 to 0.93) |
Concussion† | 69 | 3.84 (2.77 to 5.33) | 18 | 1.97 (1.14 to 3.37) |
Joint/ligament sprain/dislocation | 41 | 2.49 (1.79 to 3.38) | 2 | 0.26 (0.03 to 0.93) |
Fracture | 32 | 1.95 (1.33 to 2.75) | 3 | 0.38 (0.08 to 1.12) |
Muscle strain/tendonitis | 19 | 1.16 (0.70 to 1.80) | 1 | 0.13 (0.00 to 0.71) |
Abrasion/bleeding/burn/cut/blister | 2 | 0.12 (0.01 to 0.44) | 0 | 0.00 (0.00 to 0.47) |
Other | 7 | 0.43 (0.17 to 0.88) | 0 | 0.00 (0.00 to 0.47) |
Missing/unknown | 30 | 1.82 (1.23 to 2.61) | 14 | 1.80 (0.98 to 3.01) |
*Crude rates with 95% exact Poisson CIs.
†Rate and corresponding 95% CI are based on Poisson regression analysis, offset for exposure game hours and adjusted for clustering by team.