Table 3 Multivariable logistic regression analysis to identify predictive factors for endodontic failure within 5 years
From: Predicting early endodontic treatment failure following primary root canal treatment
Explanatory variables (test category/reference category) | Endodontic failure within 5 years | |||
|---|---|---|---|---|
95% CI | ||||
Odds ratio | Lower | Upper | P value | |
Age (per year) | .978 | .953 | 1.003 | .079 |
Sex (female/male) | .489 | .205 | 1.169 | .108 |
Tooth type (molar/non-molar) | 1.385 | .541 | 3.549 | .497 |
Complex anatomy (C-shaped/non-C-shaped) | 1.457 | .374 | 5.671 | .588 |
Obturation quality (inadequate/adequate) | 1.177 | .413 | 3.356 | .760 |
Coronal status (inadequate/adequate) | .121 | .048 | .305 | .000* |
Separated instrument (presence/absence) | 8.406 | .701 | 100.773 | .093 |
Untreated additional canals (presence/absence) | 3.770 | 1.108 | 12.828 | .034* |