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

Table 3 The diagnostic efficacy of serum PCT levels combined with WBC/PLT ratios for infections in cirrhotic patients

Group	PCT		PCT + WBC/PLT
Group	≥2 ng/mL	<2 ng/mL	Positive	Negative
Infected (n = 94)	59	35	72	22
Non-infected (n = 35)	2	33	2	33
Sensitivity (%)	62.8		76.8
Specificity (%)	94.2		94.2
Positive predictive value (PPV, %)	96.7		97.8
Negative predictive value (NPV, %)	48.5		60

ISSN: 1471-2334