From: What boxing tells us about repetitive head trauma and the brain
 | Boxers | Mixed martial artists | Total |
---|---|---|---|
Number | 104 | 135 | 239 |
Age, years | 28.38 (8.07) | 28.14 (5.01) | 28.25 (6.51) |
Percentage of Hispanics | 46.05 | 27.68 | 34.76 |
Percentage of Caucasians | 20.43 | 25.17 | 22.59 |
Percentage of African-Americans | 53.76 | 19.93 | 39.42 |
Percentage of Asians/Pacific Islanders | 3.23 | 4.55 | 3.97 |
Years of education | 12.61 (2.24) | 13.90 (2.27) | 13.34 (2.34) |
Years of fighting | 3.96 (4.95) | 4.08 (3.98) | 4.03 (4.42) |
Number of fights | 11.85 (16.54) | 10.56 (13.05) | 11.11 (14.62) |