Table 8.

Elbow injury rates per 10,000 athlete-exposures (AEs) among collegiate baseball student-athletes by season

	Injuries (n)	AEs (n)	Injury Rate* (per 10,000 AEs)	aIRR* (95% CI)
Preseason	88	257185	2.6	Referent
Inseason	182	514582	2.5	1.00 (0.77, 1.30) 1.00 (0.77, 1.29)†
Postseason	11	32974	3.1	1.19 (0.74, 2.0) 0.84 (0.50, 1.35) †
				Inseason vs Postseason ‡ 0.82 (0.51, 1.32)

^*Adjusted by year and division

^†aIRR expressed as inverse ratio for interpretation of the preseason relative to the inseason and postseason, as appropriate.

^‡Referent category for specific aIRR

aIRR = adjusted injury rate ratio