Table 2. Sensitivities and specificities of different cut-off values for TGA in detecting celiac disease.

TGA: anti-transglutaminase antibody; PPV: positive predictive value; NPV: negative predictive value

	TGA cut-off value
	>10 U/mL	>29.42 U/mL	>100 U/mL
Sensitivity, %, value (95% CI)	100 (94.64–100)	100 (94.64–100)	71.64 (59.31–81.99)
Specificity, %, value (95% CI)	96.53 (92.99–98.6)	99.50 (97.27–99.99)	100 (98.19–100)
PPV, %, value (95% CI)	90.54 (82.21–95.2)	98.53 (90.46–99.79)	100
NPV, %, value (95% CI)	100	100	91.40 (87.90–93.96)