Table 3.
Univariate and multivariate logistic regression analyses for the assessment of anatomical factors associated with extrahepatic bile duct type 1 according to Renzulli and type 1 as per the standard classification
| New classification according to Renzulli et al. for EHBD type 1 | Standard classification for EHBD type 1 | |||||||
|---|---|---|---|---|---|---|---|---|
| Univariate logistic regression (OR 95% CI) | P | Multivariate logistic regression (OR 95% CI) | P | Univariate logistic regression (OR 95% CI) | P | Multivariate logistic regression (OR 95% CI) | P | |
| Gender (M) | 1.111 (0.805–1.534) | 0.522 | 0.742 (0.375–1.467) | 0.390 | ||||
| Age (years)* | 1.009 (0.999–1.019) | 0.086 | 1.002 (0.981–1.022) | 0.890 | ||||
| Intra-hepatic biliary variants4 | ||||||||
| Type 1 | Referent | - | Referent | - | ||||
| Type 2 | 1.639 (1.061–2.532) | 0.026 | 1.868 (0.755–4.623) | 0.177 | ||||
| Type 3a | 1.723 (1.133–2.62) | 0.011 | 2.526 (1.125–5.682) | 0.025 | ||||
| Type 3b | 1.095 (0.519–2.314) | 0.810 | 2.276 (0.642–8.069) | 0.203 | ||||
| CDDP length (mm)* | 0.757 (0.726–0.790) | < 0.001 | 0.794 (0.760–0.829) | < 0.001 | 0.648 (0.569–0.739) | < 0.001 | 0.668 (0.582–0.764) | < 0.001 |
| EHBD length (mm)* | 0.993 (0.981–1.006) | 0.308 | 0.983 (0.957–1.010) | 0.225 | ||||
| CD radial insertion in the EHBD | ||||||||
| Lateral | Referent | - | Referent | - | Referent | - | Referent | - |
| Posterior | 2.441 (1.426–4.177) | 0.001 | 1.089 (0.512–2.318) | 0.825 | 6.993 (1.394–35.086) | 0.018 | 3.999 (0.442–36.186) | 0.217 |
| Medial | 29.239 (18.340–46.615) | < 0.001 | 5.098 (2.276–11.415) | < 0.001 | 77.798 (23.304–259.726) | < 0.001 | 6.227 (1.235–31.388) | 0.027 |
| Intra-pancreatic CD | 43.764 (27.552–69.516) | < 0.001 | 7.838 (3.885–15.814) | < 0.001 | 80.009 (24.156–265.001) | < 0.001 | ||
CDDP, cystic duct to duodenal papilla; EHBD, extrahepatic bile duct; CD, cystic duct; MRCP, magnetic resonance cholangiopancreatography
*Per unit increase