Table 4.
Univariate and multivariate logistic regression analyses for the assessment of the anatomical factors associated with the intra-pancreatic cystic duct
| Univariate logistic regression (OR 95% CI) | P | Multivariate logistic regression (OR 95% CI) | P | |
|---|---|---|---|---|
| Gender (M) | 0.913 (0.644–1.295) | 0.610 | ||
| Age (years)* | 1.013 (1.001–1.024) | 0.031 | ||
| Intra-hepatic biliary variants4 | ||||
| Type 1 | Referent | - | ||
| Type 2 | 1.932 (1.224–3.052) | 0.005 | ||
| Type 3a | 1.702 (1.077–2.691) | 0.023 | ||
| Type 3b | 1.647 (0.796–3.407) | 0.178 | ||
| CDDP length (mm)* | 0.855 (0.835–0.876) | < 0.001 | ||
| EHBD length (mm)* | 0.996 (0.982–1.010) | 0.554 | ||
| Ratio CDDP/EHBD (%)* | 1.61e−08 (1.19e−09–2.17e−07) | < 0.001 | 3.48−07 (2.26−08–5.36−06) | < 0.001 |
| New classification for EHBD | ||||
| Type 1 (ratio CDDP/EHBD ≤ 50%) | 268.734 (36.732–1966.103) | < 0.001 | ||
| Type 2 (ratio CDDP/EHBD > 50% and ≤ 75%) | 7.316 (0.992–53.970) | 0.051 | ||
| Type 3 (ratio CDDP/EHBD > 75%) | Referent | - | ||
| Standard classification for EHBD | ||||
| Type 1 (ratio CDDP/EHBD ≤ 33%) | 764.5 (182.859–3196.235) | < 0.001 | ||
| Type 2 (ratio CDDP/EHBD > 33% and ≤ 66%) | 17.775 (7.732–40.863) | < 0.001 | ||
| Type 3 (ratio CDDP/EHBD > 66%) | Referent | - | ||
| CD radial insertion in the EHBD | ||||
| Lateral | Referent | - | Referent | - |
| Posterior | 2.003 (1.047–3.834) | 0.036 | 0.965 (0.447–2.084) | 0.927 |
| Medial | 36.131 (22.347–58.419) | < 0.001 | 5.528 (2.939–10.395) | < 0.001 |
| Previous cholecystectomy | 1.056 (0.680–1.640) | 0.809 | ||
CDDP, cystic duct to duodenal papilla; EHBD, extrahepatic bile duct; CD, cystic duct
*Per unit increase