Fig. 3From: Performance of HbA1c versus oral glucose tolerance test (OGTT) as a screening tool to diagnose dysglycemic status in high-risk Thai patientsDiagram showing discordants in diagnosis of a) Prediabetes defined by 2-h OGTT and HbA1c of ≥6.5%. b Diabetes defined by IGT and HbA1c of 5.7–6.4%Back to article page