Table 5.

Risk factors for common bile duct stone recurrence

Factor	B	OR (95%CI)	P value	B	OR (95%CI)	P value
Age ≥ 70yr	0.69	1.99 (0.99-4.00)	0.06
CBD diameter ≥ 1.5 cm	0.79	2.20 (1.08-4.46)	0.03
EPBD/EPLBD	0.92	2.51 (0.89-7.06)	0.08
ESBD	-1.04	0.35 (0.17-0.75)	< 0.01
Gastrectomy	1.46	4.29 (0.84-21.83)	0.08
CBD morphology			< 0.01			< 0.01
Straight type		Reference		-0.90	0.41 (0.19-0.88)	0.02
S type	1.89	6.61 (2.61-16.77)	< 0.01	0.99	2.70 (1.08-6.73)	0.03
Polyline type	0.90	2.45 (1.14-5.26)	0.02		Reference

CBD: Common bile duct; EPBD: Endoscopic papillary balloon dilation; EPLBD: Endoscopic papillary large balloon dilation; ESBD: Endoscopic biliary sphincterotomy with balloon dilation; OR: Odds ratio.