Table 3.

Uni- and multivariate logistics regression analysis of risk factors to POF

	Univariate analysis		Multivariate analysis
	Odds ratio (95%CI)	P-value	Odds ratio (95%CI)	P-value
Age	1.012 (0.988, 1.037)	NS	-
WBC	1.128 (1.043, 1.219)	0.003	Parameter of Ranson-score system
PT	2.002 (1.518, 2.640)	0.000	1.182 (0.784, 1.783)	NS
GLU	1.247 (1.125, 1.382)	0.000	Parameter of Ranson-score system
LDH	1.008 (1.005, 1.011)	0.000	Parameter of Ranson-score system
ALB	0.731 (0.661, 0.808)	0.000	0.748 (0.645, 0.868)	0.000
ALB2	0.642 (0.555, 0.743)	0.000	-
BUN	1.345 (1.171, 1.544)	0.000	Parameter of Ranson-score system
Ca	0.003 (0.000, 0.021)	0.000	Parameter of Ranson-score system
HDL-C	0.070 (0.022, 0.217)	0.000	0.384 (0.074, 1.984)	NS
Ranson	2.529 (1.838, 3.479)	0.000	2.219 (1.410, 3.493)	0.001

WBC, GLU, LDH, BUN, Ca are parameter of Ranson-score system, we choose Ranson rather than WBC, GLU, LDH, BUN, Ca. ALB and ALB2 are closely related, we only choose ALB