Clinical outcomes of endoscopic papillectomy of ampullary adenoma: A multi-center study

Table 4 Risk factors of late recurrence

	Simple logistic regression (Univariate analysis)		Multiple logistic regression (Multivariate analysis)
	OR (95%CI)	P value	OR (95%CI)	P value
Age, > 65 yr	0.564 (0.162-1.961)	0.368
Sex, Male	0.865 (0.263-2.847)	0.812
Body mass index > 25 kg/m2	2.095 (0.645-6.810)	0.219
Symptomatic	4.659 (1.292-16.797)	0.019	4.213 (0.091-16.728)	0.061
EUS	0.521 (0.134-2.023)	0.346
Cholangiogram	1.250 (0.377-4.140)	0.715
Pancreatogram	2.880 (0.351-23.609)	0.324
Submucosal lifting	2.500 (0.240-26.004)	0.443
Piecemeal resection	7.114 (1.993-25.398)	0.003	6.610 (1.760-24.820)	0.005
Thermal ablation	2.434 (0.715-8.293)	0.155
BDS	1.524 (0.426-5.449)	0.517
PDS	4.657 (0.576-37.636)	0.149
Size, > 15 mm	0.444 (0.092-2.140)	0.312
Positive/uncertain resection margin	0.286 (0.035-2.326)	0.242
Complication	0.913 (0.231-3.606)	0.897

OR: Odds ratio; EUS: Endoscopic ultrasound; BDS: Bile duct stent insertion; PDS: Pancreatic duct stent insertion.