Table 2.

Incidence and Rate of Severe Injuries Sustained in Boys’ High School Football, Soccer, Wrestling, Ice Hockey, and Lacrosse by Type of Exposure^a

Sport	No. of Injuries	No. of AEs	Rate/1000 AEs	Rate Ratio (95% CI)b
Football
Competition	1603	590,327	2.72	6.48 (6.02-6.98)
Practice	1231	2,938,463	0.42
Total	2834	3,528,790	0.80
Soccer
Competition	298	406,788	0.73	5.97 (4.82-7.39)
Practice	117	953,517	0.12
Total	415	1,360,305	0.31
Wrestling
Competition	279	318,415	0.88	2.17 (1.86-2.54)
Practice	360	892,988	0.40
Total	639	1,211,403	0.53
Ice hockey
Competition	124	101,725	1.22	16.0 (9.51-26.9)
Practice	16	210,092	0.08
Total	140	311,817	0.45
Lacrosse
Competition	166	163,878	1.01	4.02 (3.12-5.19)
Practice	92	365,390	0.25
Total	258	529,268	0.49
All Sports
Competition	2470	1,581,133	1.56	4.61 (4.34-4.90)
Practice	1816	5,360,450	0.34
Total	4286	6,941,583	0.62

^aAE, athlete-exposure.

^bPractice is the referent group. All rate ratios were significant (P < .001).