Classification White's classification of DM in pregnancy gestational dia betes not requiring insulin A2: gestational diabetes requiring insulin B: onset at >20 years of age or duration of <10 years C: onset at 10 to 19 years of age or duration of>20 years or any onset or duration but with background retinopathy视网膜病 or hypertension on F: nephropathy g#F(500mg proteinuria per day at <20 weeks of pregnancy H: arteriosclerotic动脉粥样硬化 theart disease, clinically evident R: proliferative diabetic retinopathy or vitreous hemorrhage玻璃体出 血 T: history of renal transplantClassification • White’s classification of DM in pregnancy A1 : gestational diabetes not requiring insulin A2 : gestational diabetes requiring insulin B: onset at ≥20 years of age or duration of <10 years C: onset at 10 to 19 years of age or duration of ≥20 years or any onset or duration but with background retinopathy视网膜病or hypertension only F: nephropathy 肾病(>500mg proteinuria per day at <20 weeks of pregnancy) H: arteriosclerotic动脉粥样硬化heart disease, clinically evident R: proliferative diabetic retinopathy or vitreous hemorrhage玻璃体出 血 T: history of renal transplant