Clinical significance of different periampullary diverticulum classifications for endoscopic retrograde cholangiopancreatography cannulation

Table 1 Baseline clinical characteristics of the periampullary diverticulum and non- periampullary diverticulum groups

	Non-PAD group (n = 2597)	PAD group (n = 967)	P value
Age, mean ± SD	58 ± 16	65 ± 13	< 0.001
Sex, n (%)			0.004
Male	1248 (48.1)	517 (53.5)
Female	1349 (51.9)	450 (46.5)
History of cholecystectomy	909 (35.0)	356 (36.8)	0.32
Gallbladder stones	1001 (38.5)	369 (38.2)	0.83
Indications, n (%)
Common bile duct stones	1846 (71.1)	823 (85.1)	< 0.001
Acute cholangitis	291 (11.2)	171 (17.7)	< 0.001
Malignant biliary stricture	359 (13.8)	50 (5.2)	< 0.001
Benign biliary stricture	101 (3.9)	33 (3.4)	0.51
Acute pancreatitis	248 (9.6)	54 (5.6)	< 0.001
Pancreatic duct stones	18 (0.7)	4 (0.4)	0.35
Comorbidity, n (%)
Hypertension	536 (20.6)	239 (24.7)	0.009
Diabetes	212 (8.2)	100 (10.3)	0.04
Coronary disease	67 (2.6)	29 (3.0)	0.49
Virus hepatitis	140 (5.4)	31 (3.2)	0.007

PAD: Periampullary diverticulum.