Ajala O, et al. - The ability of a gestational diabetes screening test (GDS), the 2hour 75gram-Oral Glucose Tolerance Test (OGTT), and glycated hemoglobin (HbA1c) in predicting postpartum dysglycemia and fetal macrosomia was investigated in women of Caucasian, Filipino, Chinese and South-Asian descent. Patients with postpartum dysglycemia were more frequently observed to be non-Caucasian (South-Asian>Filipino>Chinese), have higher antepartum glucose values, require insulin during pregnancy and have cesarean births. Findings suggested the influence of ethnicity on the ability of antepartum glucose and HbA1c to predict the risk of macrosomia and postpartum dysglycemia.