Table 2 Donor demographic statistics

Sample size (n)

16

25

Age at death (S.E.M), range, years

65 (3), 46–86

62 (4), 31–89

P = 0.694

Race or ethnicity (n)

 White/Caucasian, n (%)

14 (88%)

18 (72%)

 Black/African American, n (%)

1 (6%)

6 (28%)

 Hispanic, n (%)

1 (6%)

0 (0%)

RHI y/n (%exposed)

7/9 (44%)

25/0 (100%)

Exposure source, n (%)

 Football

6 (38%)

25 (100%)

 Combat veteran

0 (0%)

2 (8%)

 Rugby

2 (12%)

2 (8%)

 Soccer

0 (0%)

1 (4%)

 Wrestling

1 (6%)

0 (0%)

 Hockey

1 (6%)

3 (12%)

 Boxing

1 (6%)

2 (8%)

 Lacrosse

0 (0%)

1 (4%)

RHI Exposure years (S.E.M.)

11(3)*

15(1)

P = .284

CTE Severity

 Low

0% (0)

48% (12)

 High

0% (0)

52% (13)