Endoscopic Management of the Difficult Bile Duct Stones: A Single Tertiary Center Experience

Table 3

Multivariate analysis for factors affecting endoscopic success.

Variable	OR	%95 CI	p value
Age	0.963	(0.921–1.006)	0.089
Previous cholecystectomy	1.006	(0.997–1.015)	0.181
Periampullary diverticula	1.040	(0.315–1.780)	0.774
Bile duct size in first session	0.780	(0.681–0.893)	0.001
Maximum stone size in first session	0.808	(0.726–0.898)	0.001