Table 1 Baseline characteristics

Sex (male/female)

49/41

44/43

0.653

Age (mean ± SD)

54.2 ± 16.4

57.3 ± 16.7

0.221

Periampullary diverticulum, n (%)

32 (35.6)

33 (37.9)

0.758

Cholecystectomy, n (%)

11 (12.2)

11 (12.6)

1.000

Indication for ERCP

0.174

CBD stone, n (%)

69 (76.7)

71 (81.6)

Malignant biliary stricture, n (%)

15 (16.7)

16 (18.4)

Benign biliary stricture, n (%)

3 (3.3)

0

Bile leak, n (%)

3 (3.3)

0

Pancreatic duct stent, n (%)

90 (100)

49 (56.3)

<0.001