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Fig. 3 | BMC Gastroenterology

Fig. 3

From: Evaluation of screening tests for autoimmune gastritis in histopathologically confirmed Japanese patients, and re-evaluation of histopathological classification

Fig. 3

Receiver operating characteristic (ROC) curves of PG I (a), PG II (b) and PG I/II ratio (c). PG; pepsinogen, AUC; area under the curve. AUC of PG I, PG II and PG I/II ratio were 0.81, 0.29 and 0.98, respectively. According to ROC curve analyses, the optimal cut-off values of PG I and PG I/II ratio were 14.5 ng/mL (sensitivity = 0.83, specificity = 0.85) and 2.1 (sensitivity = 1.00, specificity = 0.95), respectively

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