Recurrence of choledocholithiasis following endoscopic bile duct clearance: Long term results and factors associated with recurrent bile duct stones

Table 3 Baseline characteristics of the study groups

Variable	Recurrence group (n = 67)	Control group (n = 67)	P value
Age, yr	71.2 ± 12.4	71.9 ± 12.6	0.82
Sex, male	26/67	28/67	0.86
History of cholecystectomy before first ERCP	37	40	0.73
BEA/gastric surgery	4	2	0.68
	(2 billroth, 2 BEA)	(1 billroth, 1 BEA)
Mean follow-up time, mo	70,1 ± 31.7	68.5 ± 36.1	0.8
	(2-121)	(1-129)

Recurrence group: Patients with a history of recurrent common bile duct stones; Control group: Patients with a history of non recurrent common bile duct stones; BEA: Biliary enteric anastomosis.