Predicting risk of post-hepatectomy liver failure in patients undergoing liver resection with controlled low central venous pressure

Table 3 Univariate and multivariate logistic analyses for intraoperative risk factors

Variable	Univariate logistic regression analysis		Multivariate logistic regression analysis
	OR, 95%CI	P value	OR, 95%CI	P value
Urinary production (mL)	1.001 (1-1.001)	< 0.001	1 (1-1)	0.593
Blood loss volume (mL)	1.002 (1.001-1.002)	< 0.001	1 (1-1)	0.567
Infusion fluid volume (mL)	1.001 (1-1.001)	< 0.001	1 (1-1)	0.148
Blood transfusion	3.36 (1.553-7.272)	0.002	0.94 (0.25-3.56)	0.93
Operation time (min)	1.004 (1.002-1.006)	< 0.001	1 (1-1)	0.954
Hepatic portal occlusion time (min)	1.014 (1.007-1.021)	< 0.001	1.01 (0.97-1.04)	0.641
Number of blocks	1.255 (1.12-1.406)	< 0.001	0.93 (0.55-1.57)	0.787
Post-blocking blood potassium (mmol/L)	2.222 (1.362-3.627)	0.001	1.82 (1.05-3.17)	0.033
Post-blocking blood lactate (mmol/L)	1.491 (1.164-1.908)	0.002	1.08 (0.8-1.46)	0.629

OR: Odds ratio; CI: Confidence interval.