Utility of ascitic tumor markers and adenosine deaminase for differential diagnosis of tuberculous peritonitis and peritoneal carcinomatosis

Table 2 Diagnostic performance of ascitic tumor markers in peritoneal carcinomatosis

Variables	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Accuracy (%)
Ascitic CEA	72.82	100.00	100.00	63.64	81.58
Ascitic CA15-3	42.00	95.24	95.45	40.82	57.75
Ascitic CA19-9	71.74	97.78	98.51	62.86	81.02
Ascitic CEA + CA15-3 + CA19-9 ( CEA or CA15-3 or CA19-9)	93.40	96.83	98.02	89.71	94.67

Cut-off points for ascitic CEA, CA15-3 and CA19-9 were 3.65 ng/mL, 42.70 U/mL and 25.10 U/mL, respectively. Ascitic CEA + CA15-3 + CA19-9 meant ascitic CEA > 3.65 ng/mL, or CA15-3 > 42.70 U/mL, or CA19-9 > 25.10 U/mL

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