Table 6: The previous study about pancreatic fistula after pancreatoduodenectomy

Author	Year	Sample size	Pancreatic fistula rate	Risk factors	p
J.P.Lerut [10]	1968-1981	103	14.50%	Age≥65Preoperative Bilirubin≥6 mg/dl	<0.01<0.02
Ying-Mo-Yang [17]	2000-2003	66	10%	Diameter of Wirsung duct Pancreatic parenchyma	0.007 0.017
Schmidt C. [16]	1980-2002	980-2002	9%	Preoperative biliary dranage Internal pancreato-jejono-anastomosis dranage	0.07 0.001
Nguyen Cao Cuong [12]	2000-2007	73	8.2%	Diameter of Wirsung duct Pancreatic parenchyma
Our study	2011-2016	230	10.43%	Diameter of Wirsung duct Pancreatic parenchyma	0.015 0.004