Table 3.

Intra-operative data

	Cohort 1	Cohort 2	P-value
	Drain (n = 179)	No drain (n = 47)
Procedure			0.524**
Pancreaticoduodenectomy	123 (69%)	30 (64%)
Distal pancreatectomy	56 (31%)	17 (36%)
Pancreatic texture (Soft)	87 (56%)	25 (53%)	0.606**
Pancreatic duct (normal, ≤3 mm)	83 (52%)	27 (57%)	0.082**
Pancreatic duct stent	34 (28%)	27 (57%)	<0.0001**
Operating time (min)	401 (310–490)	400 (314–458)	0.396***
Estimated blood loss (ml)	400 (200–700)	250 (150–500)	0.006***
Transfusion	34 (19%)	3 (6%)	0.038**

*Fisher's exact test

^**χ²-test

^***Wilcoxon's rank sum test.

Note: the pancreatic duct stent is for Whipple only.