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

Table 5 Risk factors of non-curative resection

	Simple logistic regression (Univariate analysis)		Multiple logistic regression (Multivariate analysis)
	OR (95% CI)	P value	OR (95% CI)	P value
Age, > 65 yr	1.485 (0.595-3.703)	0.397
Sex, Male	1.256 (0.503-3.141)	0.625
Body mass index > 25 kg/m2	3.340 (1.090-10.235)	0.035	2.942 (0.855-10.117)	0.087
Symptomatic	2.905 (1.133-7.466)	0.026	3.509 (0.942-9.914)	0.058
EUS	1.455 (0.572-3.699)	0.431
Cholangiogram	1.222 (0.475-3.148)	0.678
Pancreatogram	2.877 (0.615-13.458)	0.179
Submucosal lifting	3.636 (0.484-27.302)	0.209
Piecemeal resection	4.625 (1.510-14.162)	0.007	5.424 (1.582-18.600)	0.007
Thermal ablation	1.185 (0.410-3.427)	0.754
BDS	1.464 (0.526-4.076)	0.466
PDS	1.949 (0.601-6.322)	0.266
Size, > 15 mm	1.452 (0.543-3.881)	0.457
Initial pathology
Benign	Ref
LGD	0.446 (0.098-2.036)	0.297
HGD	0.556 (0.065-4.755)	0.592
Positive/uncertain resection margin	1.839 (0.648-5.220)	0.252
Complication	1.778 (0.656-4.817)	0.258

OR: Odds ratio; EUS: Endoscopic ultrasound; BDS: Bile duct stent insertion; PDS: Pancreatic duct stent insertion; LGD: Low grade dysplasia; HGD: High grade dysplasia.