TABLE 3.

Injury Rate and Risk Ratio^a

	IRb	RR (95% CI)	P Value
Shoulder brace	0.71	0.46 (0.16-1.30)	.14
No shoulder brace	1.9
Freshmen	2.27	0.17 (0.02-1.38)	.09
Sophomores	1.91	0.20 (0.02-1.71)	.14
Juniors	0.99	0.50 (0.05-5.51)	.57
Seniors	0.98	0.14 (0.01-2.76)	.19

^aIR, injury rate; RR, risk ratio.

^bInjuries per 1000 athlete-exposures.