Causes associated with recurrent choledocholithiasis following therapeutic endoscopic retrograde cholangiopancreatography: A large sample sized retrospective study

Table 3 Endoscopic retrograde cholangiopancreatography-related factors compared between the recurrence group and control group

Variable	Recurrence group (n = 477)	Control group (n = 477)	OR (95%CI)	P-value
EML (Y/N)	74/391	40/437	2.068 (1.375-3.110)	0.000
EPBD (Y/N)	111/345	25/461	5.669 (3.594-8.941)	0.000
EST (Y/N)	404/60	382/96	1.701 (1.197-2.417)	0.003
CBD stent implantation (Y/N)	130/334	45/432	3.737 (2.587-5.398)	0.000
ENBD (Y/N)	271/192	282/195	0.976 (0.753-1.266)	0.855
ERCP procedures, mean ± SD	1.38 ± 0.55	1.14 ± 0.39	3.043 (2.242-4.130)	0.000

ERCP: Endoscopic retrograde cholangiopancreatography; EML: Endoscopic mechanical lithotripsy; EPBD: Endoscopic papillary balloon dilation; EST: Endoscopic sphincterotomy; CBD: Common bile duct; ENBD: Endoscopic nasobiliary drainage; Y: Yes; N: No.