Table 4 Significant multivariate associations between study variables and postoperative morbidity and in-hospital mortality

Morbidity

Operation type

6.661

3.058-14.509

0.000

Preoperative serum albumin, mg/dL

0.194

0.065-0.583

0.003

Aspartate aminotransferase (AST), U/L

10.304

1.268-83.754

0.029

Mortality

Intraoperative blood loss, ml

3.259

1.262-8.416

0.015

Bismuth classification

0.154

0.028-0.859

0.033

Preoperative hemoglobin, g/l

1.973

1.028-3.787

0.041