Table 3. Different definitions of pancreatic fistula among the included studies.

Reference	Definition of pancreatic fistula
Bai et al.2	ISGPF 2005 definition
Bassi et al.3	Output >30 mL/24 hr; rich in amylase content for at least 7 days from post-operative day 4, confirmed by fistulography
Berger et al.4	ISGPF 2005 definition
Chou et al.5	Drainage of >50 ml/d amylase-rich fluid for >2 weeks
El Nakeeb et al.6	ISGPF 2005 definition
Han et al.7	ISGPF 2005 definition
Langrehr et al.8	Elevated amylase and lipase levels (>1000 U/L) from POD 5 onwards and beyond POD 10, clinical symptoms (pain, fever, etc.)