Table 2.

Data recorded for endoscopic retrograde cholangio-pancreatography (ERCP) recorded by a single trainee from June 2006 to May 2008

Variable	Data recorded
Date of ERCP/consecutive attempt	Date/sequential attempt number
Age	Years
Indication
Previous sphincterotomy	Yes/No
Successful cannulation	Yes/No
If trainee cannulation failed, did supervisor succeed	Yes /No
Successful sphincterotomy	Not indicated/No/Yes
Procedure performed	Duct clearance/Stent placement/No procedure indicated
Outcome	Successful/Repeat ERCP required/ Other technique required