Diagnostic accuracy of a new point-of-care screening assay for celiac disease

Figure 2 Histogram showing the immunoglobulin A-tissue transglutaminase enzyme-linked immunosorbent assay and celiac disease lateral-flow immunochromatographic assay test results. Text in gray indicates false-positive and false-negative results by celiac disease lateral-flow immunochromatographic assay (CD-LFIA). FDR: First-degree relatives; GFD: Gluten-free diet; Control: First-degree relatives and patients with celiac disease symptoms diagnosed as celiac disease (CD)-negative; IgA-tTG: Immunoglobulin A-tissue transglutaminase.