Table 3. Diagnostic parameters of the different single markers to differentiate pancreatic cancer from chronic pancreatitis.

	Sensitivity (%)	Specificity (%)	PPVa (%)	NPVb (%)	AUCc
CA 19–9	80.9	95	97.4	67.9	0.862
CEA	83	40	76.5	50	0.561
Albumin	78.7	95	97.4	65.5	0.869
CRP	76.6	55	80	50	0.654
IGF-1	57.4	100	100	50	0.839
IGFBP3	82.2	60	82.2	60	0.734

^aPPV, positive predictive value,

^bNPV, negative predictive value,

^cAUC area under the Roc curve.