Table 4.
Multiple logistic backward regression models for qualitative parameters.
| Model (dependent variable, R2) | OR | 95% CI | P-value |
|---|---|---|---|
| Model 1 (Miniscrew bicortical placement) | |||
| Constant | 0.62 | -- | -- |
| Model 2 (Miniscrew incisive canal perforation, 0.275) | |||
| Constant | 142.7 | -- | -- |
| Age | 0.71 | 0.48–1.05 | .083; NS |
| Maxillary anterior teeth crowding | 1.32 | 1.04–1.67 | .021; S |
| Maxillary intercanine width | 0.82 | 0.66–1.02 | .075; NS |
| Model 3 (Miniscrew nasal floor perforation) | |||
| Constant | 0.268 | -- | -- |
Age, sex, maxillary incisor inclination, maxillary anterior teeth crowding, and maxillary intercanine width were entered as explanatory variables; CI, confidence interval; S, statistically significant; NS, not statistically significant.