Table 3.

Multivariate Analysis of Risk Factors for ERCP-related Complications.

	Odds ratio	95% CI	p value
Single-stage endoscopic stone removal (Yes)	1.2	0.36-4.2	0.69
Indication for ERCP (Asymptomatic CBDSs)	6.8	2.4-20.3	0.0003
Time of deep cannulation (>10 min)	2.3	0.99-5.5	0.053
Serum bilirubin (Normal)	0.95	0.34-2.6	0.93
Biliary stent placement (No)	2.3	0.70-8.0	0.17
Antibiotics (No)	0.65	0.22-1.8	0.40
Pancreatic stent placement (Yes)	2.0	0.62-6.2	0.24
Age (≥75 yr)	2.0	0.87-4.8	0.11
Chemoprebentation (No)	2.0	0.76-6.3	0.16
Stone number (≤1)	2.4	0.92-7.2	0.075

ERCP: endoscopic retrograde cholangiopancreatography, CBDSs: common bile duct stones, CI: confidence interval