The Predictivity of Serum Biochemical Markers in Acute Biliary Pancreatitis

Table 1

The biochemical markers whose values were significantly different between biliary and nonbiliary pancreatitis.

	Cut-off value	Nonbiliary number	Biliary number	Sensitivity %	Specificity %	PPV %	NPV %
ALP	<246 U/L	23	38	62.4	60.5	80.8	37.7
	>246 U/L	15	63
Total bilirubin	<1.0 mg/dL	29	42	65.4	67.4	83.9	42.9
	>1.0 mg/dL	11	62
Direct bilirubin	<0.21 mg/dL	26	42	59.6	65.0	81.6	38.2
	>0.21 mg/dL	14	62
Amylase	<970 IU/L	23	41	60.6	57.5	78.8	35.9
	>970 IU/L	17	63
Lipase	<1400 IU/L	24	40	61.2	60.0	79.7	37.5
	>1400 IU/L	16	63

ALP: alkaline phosphatase.
PPV: positive predictive value.
NPV: negative predictive value.