From: Defining the optimal bilirubin level before hepatectomy for hilar cholangiocarcinoma
≤75 μmol/L
(n = 82)
> 75 μmol/L
(n = 8)
P value
90-day mortality
0.008a
 No
74 (90.2%)
4 (50%)
 Yes
8 (9.8%)