Table 6.

Concussions and injury exposures (correlation coefficients)

Injury Exposures	Practice Concussions (n = 19)		Game Concussions (n = 21)
Practice	0.303	P = 0.0273	−0.075	P = 0.5969
Full-contact practice	0.512	P = 0.0001	0.066	P = 0.6398
Game	0.102	P = 0.4683	0.061	P = 0.6666
Full-contact practice + gamea	0.462	P = 0.0005	0.126	P = 0.3730
Practice + gamea	0.325	P = 0.0177	−0.051	P = 0.7171
Strength training	−0.205	P = 0.1417	0.040	P = 0.7764
Practice + gamea + strength training	0.289	P = 0.0355	−0.034	P = 0.8122

^aScrimmages for preseason.