DIV group (n = 56) | ORS group (n = 51) | P-value | ||||||||
Screening papillary region | 3 | 5.4 | 4 | 7.8 | 0.707 | |||||
ERP | 11 | 19.6 | 10 | 19.6 | >0.999 | |||||
Balloon-ERP | 5 | 8.9 | 1 | 2.0 | 0.209 | |||||
Pancreatic juice cytology | 2 | 3.6 | 2 | 3.9 | >0.999 | |||||
ERC | 3 | 5.4 | 5 | 9.8 | 0.474 | |||||
EST | 8 | 14.3 | 6 | 11.8 | 0.779 | |||||
Lithotripsy | 14 | 25.0 | 15 | 29.4 | 0.667 | |||||
EBS | 7 | 12.5 | 8 | 15.7 | 0.782 | |||||
ENBD | 0 | 0.0 | 0 | 0.0 | - | |||||
Papillectomy | 1 | 1.8 | 0 | 0.0 | >0.999 | |||||
Minor papilla sphincterotomy | 2 | 3.6 | 0 | 0.0 | 0.496 |