Fig. 2From: Usefulness of hemoglobin A1c and glycated albumin measurements for insulinoma screening: an observational case-control studyROC curve of HbA1c and GA for predicting insulinoma. HbA1c: The optimal cutoff point of 5.0% (AUC = 0.971, 95% CI 0.918–0.990). GA: The optimal cutoff point of 12.4% (AUC = 0.929, 95% CI 0.788–0.979). ROC, receiver-operating characteristic; HbA1c, hemoglobin A1c; GA, glycated albumin, AUC; area under the curveBack to article page