Impact of body mass index for patients undergoing pancreaticoduodenectomy

Table 1 Pre-operative characteristics of patients

Patient characteristics	Overweight(n = 141)	Controls(n = 226)	P value
BMI (kg/m2)	28.6	22.1	< 0.0001
Male/Female	75/66	127/99	0.5
Mean age (yr)	63.7	65	0.3
ASA risk
I	10.40%	5.10%	0.06
II	58.30%	53.40%	0.40
III	29.60%	36.40%	0.20
IV	1.70%	5.10%	0.30
Vascular resection	15.60%	22.10%	0.10

ASA: American Society of Anesthesiology; BMI: Body mass index.

Table 2 Histological diagnosis of resected specimens and main surgical specific post-operative complications

	Overweight(n = 141)	Controls(n = 226)	P value
Histology
Ductal adenocarcinoma of the pancreas	42.5%	49.5%	0.2
Periampullary cancers	20.6%	17.4%	0.5
Cholangiocarcinoma	4.9%	3.9%	0.8
Cystic tumors	12.8%	10.6%	0.6
Neuroendocrine tumors	5.7%	5.8%	1.0
Chronic pancreatitis	3.6%	9.7%	0.03
Other tumor types	9.9%	3.1%	0.009
Surgical complications
Pancreatic fistula	20.0%	9.5%	0.006
Delayed gastric empting	14.2%	11.5%	0.5
Bile leakage	2.8%	1.7%	0.5
Abdominal bleeding	4.2%	4.4%	1.0
Gastro-intestinal bleeding	2.1%	2.6%	1.0
Wound infection	4.9%	2.6%	0.3