Table 1.

Serologic tests for celiac disease

ANTIGEN	ANTIBODY TYPE	TEST	SENSITIVITY, % (RANGE)	SPECIFICITY, % (RANGE)
Gliadin	IgA	ELISA	85 (57–100)	90 (47–94)
	IgG	ELISA	80 (42–100)	80 (50–94)
Endomysium	IgA	IFA	95 (86–100)	99 (97–100)
	IgG	IFA	80 (70–90)	97 (95–100)
Tissue transglutaminase	IgA	ELISA	98 (78–100)	98 (90–100)
	IgG	ELISA	70 (45–95)	95 (94–100)
Deamidated gliadin peptide	IgA	ELISA	88 (74–100)	90 (80–95)
	IgG	ELISA	80 (70–95)	98 (95–100)

ELISA—enzyme-linked immunosorbent assay, IgA—immunoglobulin A, IgG—immunoglobulin G, IFA—immunofluorescence assay.

Data from Leffler and Schuppan.¹⁵