Table 3. Odds Ratios (OR) and 95% Confidence Intervals (CIs) of injury in mixed martial arts matches from multivariate logistic regression models, September 2001 through December 2004, Nevada.
Model Variables OR 95%CI
Unconditional logistic regression
Age * 1.29 0.73-2.26
Weight * 1.03 0.95-1.11
Lost match 2.32 1.36-3.98
KO or TKO 1.71 0.97-3.01
Rounds fought 1.44 1.11-1.87
1:1 matched conditional logistic regression
Age * 3.11 1.11-8.59
Weight difference * 1.10 0.90-1.34
Lost match 2.69 1.44-5.0
† A continuous variable.
*Odds Ratio for a ten-unit change in age and weight.