Table 8 Logistic regression model for predictors of nonunion using a set and combination of three previously-identified prognostic variables
Factor | Group sample size* | Nagelkerke R square | Odds ratio [95% CI] | Probability |
|---|---|---|---|---|
One Risk Factor ± | 193 | 0.007 | 0.708 [0.330, 1.517] | 0.374 |
Two Risk Factors | 193 | 0.045 | 2.450 [1.165, 5.154] | 0.018 |
Three Risk Factors | 193 | 0.028 | 3.800 [0.967, 14.938] | 0.056 |
Combination of Two Risk Factors | Â | Â | Â | Â |
  Fracture Gap and Open Fracture | 193 | 0.083 | 3.382 [1.601, 7.143] | 0.001 |
  Fracture Gap and Transverse Fracture | 193 | 0.020 | 2.417 [0.841, 6.947] | 0.101 |
  Open Fracture and Transverse Fracture | 199 | 0.021 | 3.152 [0.842, 11.794] | 0.088 |