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

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

Group PCT PCT + WBC/PLT
≥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