Table 2.

Statistical characteristics of the stepwise (stepAIC) selected model for postoperative hemorrhage.

Variables	97.5% CI	z value	P
Jaundice	0.236–1.165	− 1.557	0.119
DM	0.146–0.807	− 2.513	0.012
Hepatitis	0.032–0.488	− 3.079	0.002
Pancreatic tumor	1.442–7.278	2.810	0.005
Bile duct tumor	1.136–8.338	2.127	0.033
CA125	0.978–1.001	− 2.006	0.039
TT	NA–0.998	− 1.449	0.147
APTT	0.836–1.004	− 1.964	0.049
INR	0.018–4.43E+24	1.667	0.093
PT	0.010–2.026	− 1.427	0.153
WBC	1.264–47.178	2.147	0.032
NEU	0.014–0.678	− 2.288	0.022
LYM	0.015–0.907	− 1.995	0.046
AST	0.999–1.212	1.370	0.171
CREA	0.960–0.999	− 2.058	0.039

DM diabetes mellitus.