Concordance of 24- and 48-h diagnostic follow-up ascitic fluid polymorphonuclear leukocyte count in the guidance of the antibiotic therapy in spontaneous bacterial peritonitis

Egyptian Liver Journal

Table 2 Relation between 24-h AFPC and type of treatment response in SBP patients

	24-h AFPC and non-response	24-h AFPC percent drop and response
Cutoff	>980 cell/mm³	>8%	>980 cell/mm³	>8%
AUROC	0.634	0.849	0.634	0.849
p value	0.001	0.001	0.001	0.001
95% CI	0.584–0.681	0.810–0.883	0.584–0.681	0.810–0.883
Sensitivity	58.87%	85.82%	58.87%	85.82%
Specificity	64.36%	80.49%	64.36%	80.49%
PPV	42.7%	90.8%	42.7%	90.8%
NPP	77.6%	71.7%	77.6%	71.7%

AFPC ascitic fluid polymorphonuclear leukocyte count, AUROC area under the receiver operating characteristic, CI confidence interval, PPV positive predictive value, NPV negative predictive value