Comparison of Hemoglobin A1c With Fasting Plasma Glucose and 2-h Postchallenge Glucose for Risk Stratification Among Women With Recent Gestational Diabetes Mellitus

OBJECTIVE Postpartum testing with a 75-g 2-h oral glucose tolerance test or fasting plasma glucose (FPG) alone is often not performed among women with histories of gestational diabetes mellitus (GDM). Use of hemoglobin A1c (A1C) might increase testing. The association between A1C and glucose has not been examined in women with histories of GDM. RESEARCH DESIGN AND METHODS We assessed the association of A1C ≥5.7% with FPG ≥100 mg/dL and 2-h...