Table 3.

Assessment of methodology

Study	Setting	Timing of randomization	Stratification of randomization	Allocation concealment	Blinding	Standardization of technique	Pancreatic fistula measure
Fernández-Cruz et al.31 2008	Single centre	Before surgery	No	No	NR	Yes	ISGPF
Wellner et al.32 2012	Single centre	During surgery, before reconstruction	No	No	NR	Yes	ISGPF
Topal et al.9 2013	Multiple centres	During surgery, before reconstruction	Yes (pancreas duct size)	Yes	No	No	ISGPF
Figueras et al.15 2013	Multiple centres	During surgery, before reconstruction	Yes (diagnosis and centre)	Yes	NR	Yes	ISGPF

NR, not reported;

ISGPF, International Study Group on Pancreatic Fistula.