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. 2013 Mar 22;14:103. doi: 10.1186/1471-2474-14-103

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
 
 
 
 
  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

*n denominators do not equate to 200 due to missing values.

±Risk factors include: Fracture gap, Open fracture, Transverse fracture.