Measurement of serum procalcitonin levels for the early diagnosis of spontaneous bacterial peritonitis in patients with decompensated liver cirrhosis

Table 4 The diagnostic efficacy of serum PCT levels combined with WBC/PLT ratios for SBP in cirrhotic ascites patients

Group	PCT		PCT + WBC/PLT
Group	≥2 ng/mL	<2 ng/mL	Positive	Negative
SBP (n = 61)	42	19	51	10
Non-infected (n = 35)	2	33	2	33
Sensitivity (%)	68.8		83.6
Specificity (%)	94.2		94.2
Positive predictive value (PPV, %)	95.4		96.2
Negative predictive value (NPV, %)	63.5		76.7

ISSN: 1471-2334