Total bile acid better reflects the early biochemical biliary drainage response after endoscopic retrograde cholangiopancreatography

Table 7 Multivariable logistic regression analysis of factors associated with early biochemical drainage response after endoscopic retrograde cholangiopancreatography

Variable	OR (95%CI)	P value
Initial ERCP	1.772 (1.163-2.748)	0.009
Drainage strategy: ENBD + stent	0.496 (0.284-0.838)	0.011
Drainage strategy: Stent only	0.564 (0.354-0.887)	0.015
Common bile duct diameter, mm	1.026 (0.997-1.056)	0.083
Baseline Tbil	1.003 (1.001-1.005)	< 0.001
Baseline ALP	0.999 (0.998-1.000)	0.105
Baseline GGT	1.002 (1.001-1.002)	< 0.001
Baseline WBC	1.042 (1.006-1.080)	0.021

Only variables retained in the final multivariable model are shown. Odds ratios were estimated for early biochemical drainage response after endoscopic retrograde cholangiopancreatography. Continuous variables were modeled per unit increase. ERCP: Endoscopic retrograde cholangiopancreatography; OR: Odds ratio; CI: Confidence interval; ENBD: Endoscopic nasobiliary drainage; Tbil: Total bilirubin; ALP: Alkaline phosphatase; GGT: Gamma-glutamyl transferase; WBC: White blood cell count.