Table 2 Preoperative CEA, CA125, and CA19-9 combined with SII have high predictive value for postoperative death in patients with GBC

CEA

44.14%

84.74%

0.535

< 0.001

CA125

44.83%

88.25%

0.659

< 0.001

CA19-9

93.10%

71.93%

0.875

< 0.001

SII

79.31%

70.18%

0.814

< 0.001

Combination-death

93.10%

82.46%

0.923

< 0.001

CEA vs. Combination-death

P < 0.001

CA125 vs. Combination-death

P = 0.003

CA19-9 vs. Combination-death

P = 0.043

SII vs. Combination-death

P = 0.004