Multivariate analysis of postextraction bleeding events by potential risk factors
| 95% CI | ||||
|---|---|---|---|---|
| OR | Lower | Upper | p Value | |
| Age (years) | ||||
| <65 | 1 (Ref) | |||
| ≥65 | 0.126 | 0.035 | 0.448 | 0.001* |
| Type | ||||
| Foretooth or premolar | 1 (Ref) | |||
| Molar | 0.953 | 0.288 | 3.151 | 0.937 |
| Cause for extraction | ||||
| Caries, apical periodontitis, or other | 1 (Ref) | |||
| Periodontitis or wisdom tooth pericoronitis | 2.301 | 0.742 | 7.142 | 0.149 |
| Status of antiplatelet therapy | ||||
| No | 1 (Ref) | |||
| Yes | 0.100 | 0.010 | 0.986 | 0.049* |
| PT-INR | 7.797 | 2.2930 | 26.510 | 0.001* |
| Use of inferior alveolar nerve block | ||||
| No | 1 (Ref) | |||
| Yes | 2.437 | 0.336 | 17.659 | 0.378 |
| Comorbidity possibly influencing haemostasis | ||||
| No | 1 (Ref) | |||
| Yes | 0.503 | 0.157 | 1.612 | 0.247 |
| History of acute inflammation at extraction site | ||||
| No | 1 (Ref) | |||
| Yes | 3.722 | 1.0850 | 12.773 | 0.037* |
| Abnormal granulation tissue in extraction socket | ||||
| None-to-little | 1 (Ref) | |||
| Medium-to-much | 2.895 | 0.8940 | 9.369 | 0.076 |
*p≤0.05 was considered significant.
PT-INR, prothrombin time–international normalised ratio.