Hemoconcentration is a poor predictor of severity in acute pancreatitis

Table 3 Accuracy of hemoconcentration at admission and at 24 h later as a marker for severe acute pancreatitis (AP), necrotizing AP and organ failure

Groups	Sensitivity (%)		Specificity (%)		PPV (%)		NPV(%)
	Admission	24 h	Admission	24 h	Admission	24 h	Admission	24 h
Severe AP	59	58	35	31	21	18	74	73
Necrotizing AP	61	59	42	38	37	36	66	61
Organ failure	60	58	36	32	13	10	85	86

PPV: positive predictive value; NPV: negative predictive value.