Table 12.
Area under receiver operating characteristic curve for all arch widths and combinations of arch widths
| Parameters | AUC | Standard error | P | 95% confidence interval | |
|---|---|---|---|---|---|
|
| |||||
| Lower bound | Upper bound | ||||
| Intercanine width (ICW) | 0.742 | 0.022 | 0.000 | 0.699 | 0.785 |
| Interpremolar width (IPW) | 0.764 | 0.021 | 0.000 | 0.723 | 0.806 |
| Intermolar width (IMW) | 0.801 | 0.020 | 0.000 | 0.762 | 0.839 |
| ICW + IPW | 0.771 | 0.021 | 0.000 | 0.730 | 0.812 |
| IPW + IMW | 0.809 | 0.019 | 0.000 | 0.771 | 0.846 |
| ICW + IMW | 0.801 | 0.019 | 0.000 | 0.763 | 0.839 |
| ICW + IPW + IMW | 0.804 | 0.019 | 0.000 | 0.766 | 0.842 |