Table 7.
Results of multivariate Cox regression analysis of primary teeth after pulpectomy
| Co-variable | Subgroup | B | P∗ | HR | 95% CI for HR |
|
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Age | – | 0.169 | 0.000 | 1.185 | 1.082 | 1.297 |
| Attending doctors | Intern | 0 | 1 | |||
| Exporter | −0.041 | 0.762 | 0.960 | 0.737 | 1.251 | |
| Treatment method | Non-GA | 0 | 1 | |||
| GA | −0.015 | 0.936 | 0.985 | 0.682 | 1.422 | |
| Periapical lesion | No | 0 | 1 | |||
| Yes | −0.095 | 0.439 | 0.910 | 0.715 | 1.157 | |
| Root filling materials | Iodoform zinc oxide paste | 0 | 1 | |||
| Vitapex | 0.063 | 0.651 | 1.065 | 0.811 | 1.397 | |
| Restoration materials | Resin filling | 0 | 1 | |||
| GIC filling | 0.414 | 0.049 | 1.513 | 1.002 | 2.285 | |
| PMC | −0.138 | 0.231 | 0.871 | 0.695 | 1.092 | |
∗The bold P value indicated that the difference was significant (P < 0.05).
B, coefficient of regression; CI, confidence interval; GA, general anesthesia; GIC, glass ionomer cement; HR, hazard ratio; non-GA, non-general anesthesia; PMC, preformed metal crown.