Table 1. Change in Grade B and C discriminating criteria.

Event	2005 ISGPF	2016 ISGPS
Percutaneous or endoscopic drainage	Grade C/Grade B (unclear)	Grade B
Angiographic procedures for POPF related bleeding	Grade C	Grade B
Organ Failure	Not included	Grade C
Sepsis	Grade C	Not included
All events and treatment on POPF classification must be POPF-related	No	Yes

POPF, postoperative pancreatic fistula; ISGPF, the International Study Group of Pancreatic Fistula; ISGPS, the International Study Group for Pancreatic Surgery.