Multiple logistic regression analysis of risk factors for delayed union
| Factor | OR | 95% CI | P value |
| Age | 1.05 | 0.99 to 1.11 | 0.13 |
| AO classification | 2.78 | 0.59 to 13.1 | 0.19 |
| Open fracture | 3.13 | 0.62 to 15.9 | 0.17 |
| Displacement of the third fragment | 1.13 | 1.01 to 1.26 | 0.03 |