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Table 3 Regression coefficients of the variable expressing the number of injuries

From: The counterintuitive effect of multiple injuries in severity scoring: a simple variable improves the predictive ability of NISS

Predictor Odds Ratio Std. Error z P of Wald test 95% CI
2 injuries vs. 1 injury 0.520 0.146 -2.33 0.02 0.300-0.902
3 injuries vs. 1 injury 0.174 0.044 -6.92 <0.01 0.106-0.286
  1. The model includes NISS with fractional polynomial transformation and the dependent variable is mortality