Effect of overtime pancreaticoduodenectomy on the short-term prognosis of patients

Table 2 Patient characteristics and operative parameters

	Control group (n = 177)	Overtime group (n = 58)	P value
Age (yr)	63 (14-89)	64 (29-84)	0.987
Sex			0.694
Male	114 (64.4%)	39 (67.2%)
Female	63 (35.6%)	19 (32.8%)
BMI (kg/m2)	22.7 (14.8-36.8)	22.9 ± 2.79	0.922
ASA classification			0.227
Ι	14 (7.9%)	3 (5.2%)
ΙΙ	130 (73.4%)	49 (84.5%)
ΙΙΙ	33 (18.6%)	6 (10.3%)
History of hepatobiliary and pancreatic disease	32 (18.1%)	14 (24.1%)	0.313
Diabetes	33 (18.6%)	13 (22.4%)	0.53
Hypertension	67 (37.9%)	21 (36.2%)	0.822
Coronary artery disease	14 (7.9%)	5 (8.6%)	0.863
Cerebrovascular disease	16 (9.0%)	2 (3.4%)	0.165
Preoperative total bilirubin	85.8 (5.4-793.5)	93.8 (5.3-610.2)	0.566
Primary site			0.644
Pancreas	74 (41.8%)	21 (36.2%)
Bile duct	61 (34.5%)	20 (34.5%)
Duodenum	42 (23.7%)	17 (29.3%)
Surgeon			0.085
A	21 (11.9%)	5 (8.6%)
B	30 (16.9%)	17 (29.3%)
C	32 (18.1%)	13 (22.4%)
D	17 (9.6%)	6 (10.3%)
E	34 (19.2%)	3 (5.2%)
F	43 (24.3%)	14 (24.1%)
Technique of reconstruction			0.233
Roux-en-Y	94 (53.1%)	36 (62.1%)
Child surgery	83 (46.9%)	22 (37.9%)
Pancreaticojejunostomy technique			0.686
Duct-to-mucosa	53 (29.9%)	19 (32.8%)
Invagination	124 (70.1%)	39 (67.2%)
Operative time (min)	413 (260-796)	421.1 ± 83.4	0.757
Blood loss (mL)	600 (100-4700)	700 (150-2800)	0.185
Number of lymph nodes removed	9 (0-62)	10 (1-45)	0.994

BMI: Body mass index.