Table 1.

Major and minor study inclusion criteria used to calculate post-ERCP pancreatitis risk score

Major criteria	Minor criteria
Clinical suspicion of sphincter of Oddi dysfunction	Age < 50 years old and female gender
History of post-ERCP pancreatitis	History of recurrent pancreatitis
Pancreatic sphincterotomy	≥3 Pancreatic injections, with at least one injection to tail
Pre-cut (access) sphincterotomy	Pancreatic acinarization
>8 Cannulation attempts	Pancreatic brush cytology
Pneumatic dilation of intact biliary sphincter
Ampullectomy

ERCP, endoscopic retrograde cholangiopancreatography.