Impact of changing our cannulation method on the incidence of post-endoscopic retrograde cholangiopancreatography pancreatitis after pancreatic guidewire placement

Table 3 Impact of contrast injection using a single-lumen on post-endoscopic retrograde cholangiopancreatography pancreatitis after pancreatic guidewire placement according to multivariate analysis

	Model 1 crude OR (95% C.I.)	Model 2adjusted OR (95% C.I.)	Model 3adjusted OR (95% C.I.)
CI using a single-lumen catheter	9.4 (1.2-72)a	10.2 (1.3-83)a	10.8 (1.3-88)a
Female		1.5 (0.56-3.9)	1.4 (0.50-3.7)
< 50 yr		6.8 (0.79-59)	6.1 (0.67-56)
Failed cannulation			1.2 (0.30-4.9)
Bile duct stone removal			1.9 (0.46-7.5)
Pancreatic brush cytology			0.55 (0.061-5.0)
Biliary sphincterotomy			1.3 (0.36-4.7)

^aP < 0.05. CI: Contrast injection; OR: Odds ratio; C.I.: Confidence interval.