Multivariate predictive model for asymptomatic spontaneous bacterial peritonitis in patients with liver cirrhosis

Table 3 Receiver operating characteristic analysis for the continuous variables in 196 selected patients

Variables	AUC	Cut-off value
Age (yr)	0.489	71.50
MELD score	0.733	15.50
WBC (× 109/L)	0.729	4.73
N (100%)	0.747	0.6615
PLT (× 109/L)	0.494	187.50
WBC/PLT	0.720	0.0619
Leukocyte (mm3)	0.538	230.00
Polymorphonuclear (100%)	0.683	0.075
PMN (mm3)	0.671	10.95

AUC: Area under curve; MELD: Model for end-stage liver disease; WBC: White blood cell count; N: Blood neutrophil percentage; PLT: Platelet; PMN: Polymorphonuclear leukocyte count in ascites.