Table 1.

Patients demographics and clinical findings

	N = 113
Age (years)	61 ± 10 (27–80)
Female/male (n)	64/49
Body mass index (kg/m2)	22.73 ± 2.34 (17–28)
Preoperative total bilirubin of blood (μmol/L)	98.32 ± 89.67 (8.6–352)
Preoperative blood albumin (g/L)	38.05 ± 4.23 (30–48.7)
Preoperative biliary drainage (n)
PTCD	4
PTGD	2
ENBD	4

PTCD percutaneous transhepatic cholangial drainage, PTGD percutaneous transhepatic gallbladder drainage, ENBD endoscopic nasobiliary drainage