Table 1. Participant Characteristics.

Measure	Group	Mean (S.D.)	T test	P value
Age, yr	Control	21.3 (2.6)	0.64	0.49
	Concussion	21.9 (2.4)
Education, yr	Control	16.3 (1.2)	0.15	0.83
	Concussion	16.6 (1.3)
Sex	Control	13 M 3 F
	Concussion	13 M 3 F
Height, cm	Control	173.4 (15.7)	0.36	0.63
	Concussion	171.7 (17.2)
Weight, kg	Control	79.8 (9.3)	0.53	0.41
	Concussion	82.3 (10.7)