Table 2. Subject characteristics.

Characteristic	Munich Athletes (n = 30)	Rochester Athletes (n = 16)	Combined Cohort (n = 46)
Age, Mean Years (SD)	28.4 (4.5)	19.8 (1.4)	25.4 (5.5)
Male, N (%)	30 (100)	11(68.8)	41 (89.1)
Race
Caucasian, N (%)	30 (100)	14 (87.5)	44 (95.7)
African American/European, N (%)	0	2 (12.5)	2 (4.3)
Sport
Ice Hockey, N (%)	30 (100)	4 (25)	34 (73.9)
Soccer, N (%)	0	3 (18.8)	3 (6.5)
Football, N (%)	0	8 (50)	8 (17.4)
Basketball, N (%)	0	1 (6.2)	1 (2.2)
Baseline S100B, mean μg/L (SD)*	0.070 (.03)	0.068 (.04)	0.070 (.03)

T-test to assess difference between Munich and Rochester cohorts at baseline, p = 0.85.