Hemoconcentration is a poor predictor of severity in acute pancreatitis

Table 4 Prognostic values of hemoconcentration in previous studies

Studies	n	Prognostic criteria	sensitivy (%)	specificity (%)	PPV (%)	NPV (%)
		Necrosis
Baillargeon et al[17]	64	≥47% at admission	34	91	44	87
		Failure to decrease at 24 h	81	88
		Necrosis
Brown et al[18]	128	>44% at admission	72	83	68	85
		Failure to decrease at 24 h	94	69	61	96
		Organ failure
		>44% at admission	60	75	26	93
		Failure to decrease at 24 h	87	65	27	97
		Necrosis
Goulis et al[37]	63	>44% at admission	78	83	50	94
		Necrosis
Lankisch et al[20]	316	>43% for male and >39.6% for	74	45	24	88
		female at admission
		Necrosis
Pezzilli et al[36]	158	>43.8 at admission	52.3	74.6
		Severity
Khan et al[16]	58	>47% at admission	0	92	0	65
		>44% at admission	32	82	46	71
		Hct not decreasing	21	66	24	63
Present study	336	Severity
		>44% for male and 40% for	59	35	21	74