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Table 1 Demographic and fight exposure details of fighters recruited to date

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)
  1. Values are presented as mean (standard deviation) unless otherwise indicated.