Table 1. Sensitivity, specificity and predictive value of hybrid κ\λ antibodies in patients with autoimmune pancreatitis (AIP) and controls (non-AIP).

Levels of serum hybrid κ\λ antibody	AIP (n = 61)	Non-AIP (n = 277)	Total	Predictive value (%)
≥4.04 AU/mL	49	25	74	Positive 66.2%
<4.04 AU/mL	12	252	264	Negative 95.5%
Total	61	277	338
	Sensitivity 80.3%	Specificity 91%