Table 5:

Number and rates of game-related injuries among ice hockey players aged 15–17 years by years of bodychecking experience and location and injury type

Injury	≤ 2 yr bodychecking experience		≥ 3 yr bodychecking experience
	No. (%) of injuries* n = 29	Rate per 1000 player-hours (95% CI)†	No. (%) of injuries* n = 309	Rate per 1000 player-hours (95% CI)†
Location
Head or face‡	10 (34)	1.67 (0.89–3.12)	119 (39)	4.60 (3.71–5.70)
Neck or throat	1 (3)	0.17 (0.00–0.93)	6 (2)	0.23 (0.09–0.50)
Shoulder or clavicle	7 (24)	1.16 (0.47–2.40)	51 (17)	1.97 (1.47–2.59)
Arm, elbow or forearm	0 (0)	0.00 (0.00–0.61)	9 (3)	0.35 (0.16–0.66)
Wrist or hand	4 (14)	0.67 (0.18–1.70)	28 (9)	1.08 (0.72–1.56)
Back or side	2 (7)	0.33 (0.04–1.20)	9 (3)	0.35 (0.16–0.66)
Chest, ribs or abdomen	0 (0)	0.00 (0.00–0.61)	3 (1)	0.12 (0.02–0.34)
Pelvis, hips, groin or upper leg	1 (3)	0.17 (0.00–0.93)	20 (6)	0.77 (0.47–1.19)
Knee	1 (3)	0.17 (0.00–0.93)	28 (9)	1.08 (0.72–1.56)
Lower leg, ankle or foot	2 (7)	0.33 (0.04–1.20)	12 (4)	0.46 (0.24–0.81)
Missing or unknown	1 (3)	0.17 (0.00–0.93)	24 (8)	0.93 (0.59–1.38)
Type
Contusion	2 (7)	0.33 (0.04–1.20)	23 (7)	0.89 (0.56–1.33)
Concussion‡	10 (34)	1.67 (0.89–3.12)	115 (37)	4.44 (3.57–5.53)
Joint or ligament sprain or dislocation	5 (17)	0.83 (0.27–1.94)	59 (19)	2.28 (1.74–2.94)
Fracture	7 (24)	1.16 (0.47–2.40)	40 (13)	1.55 (1.10–2.10)
Muscle strain or tendinitis	3 (10)	0.50 (0.10–1.46)	30 (10)	1.16 (0.78–1.65)
Abrasion, bleeding, burn or blister	0 (0)	0.00 (0.00–0.61)	3 (1)	0.12 (0.02–0.34)
Other	0 (0)	0.00 (0.00–0.61)	9 (3)	0.35 (0.16–0.66)
Missing or unknown	2 (7)	0.33 (0.04–1.20)	30 (10)	1.16 (0.78–1.65)

Note: CI = confidence interval.

^*Percent frequencies do not total 100 because of rounding error.

^†Crude rates with 95% exact Poisson CIs.

^‡Corresponding 95% Poisson CIs adjusted for cluster by team (offset by game-hours).