Table 3.
Results from the multivariate regression model
| Variable | Crude odds ratio | 95% CI | Adjusted odds ratio | 95% CI | p value | ||
|---|---|---|---|---|---|---|---|
| Lower | Upper | Lower | Upper | ||||
| Female sex | 0.49 | 0.17 | 1.35 | ||||
| Age | 1.02 | 0.99 | 1.04 | 1.02 | 0.99 | 1.05 | 0.131 |
| Preoperative tibial length (mm) | 1.00 | 0.99 | 1.01 | ||||
| Time in frame (months) | 0.95 | 0.80 | 1.11 | ||||
| Amount of lengthening (mm) | 1.05 | 1.02 | 1.07 | 1.05 | 1.02 | 1.07 | < 0.001 |
| Lengthening as percentage of preoperative tibial length | 1.11 | 1.04 | 1.18 | ||||
| Congenital etiology | 1.90 | 0.86 | 4.15 | ||||
Blank values under the adjusted odds ratio column indicate variables that were not retained in the final model.