Common bile duct morphology is associated with recurrence of common bile duct stones in Billroth II anatomy patients

Table 5 Risk factors for common bile duct stone recurrence

Factor	β	OR (95%CI)	P value	β	OR (95%CI)	P value
PAD	0.55	1.74 (0.61-4.95)	0.30
Procedure time	0.01	1.01 (0.98-1.03)	0.84
CBD diameter ≥ 1.5 cm	1.82	6.15 (1.87-20.24)	< 0.01
		Model 1			Model 2
CBD morphology			< 0.01			< 0.01
Straight type		Reference		-1.60	0.20 (0.06-0.70)	0.01
S type	2.82	16.79 (4.27-66.09)	< 0.01	1.22	3.38 (1.07-10.72)	0.04
Polyline type	1.60	4.97 (1.42-17.38)	0.01		Reference

PAD: Periampullary diverticulum; CBD: Common bile duct; OR: Odds ratio; CI: Confidence interval.