Association of Tissue Transglutaminase Antibody Titer with Duodenal Histological Changes in Children with Celiac Disease

Table 4

Assessment of sensitivity, specificity, positive predictive value, and negative predictive value of the anti-tTG titer ≥ 180 U/mL.

Test	Marsh III	<Marsh III	Total
Anti-tTG ≥ 180 U/mL (positive)	40	11	51
Anti-tTG < 180 U/mL (negative)	9	21	30

Sensitivity 81.6%, specificity 65.6%, PPV 78.4%, NPV 70%.