Table 2.

Results of ROC Analysis for Blood Parameters

Parameter	AUC	Cut Off Point	Sensitivity (%)	Specificity (%)	+PV	-PV	+LR	-LR	Accuracy
WBC count (109/μL)	0.62	7.55	54	66	0.61	0.58	1.58	0.696	0.60
Neutrophil count (109/μL)	0.58	53.7	45	71	0.60	0.56	1.55	0.774	0.58
CRP (mg/L)	–	–	65	72	0.69	0.67	2.32	0.486	0.68

Abbreviations: WBC, white blood cell; CRP, C-reactive protein; AUC, areas under the ROC curves; LR, likelihood ratio; PV, predictive value.