First‐trimester glycaemic markers as predictors of gestational diabetes and its associated adverse outcomes: A prospective cohort study

Objective Gestational diabetes mellitus (GDM) is associated with excessive fetal growth in later gestation. Recent data suggest accelerated growth may begin before 28 weeks' gestation when GDM is typically diagnosed. The identification of pregnancies at risk of early fetal growth would enable early intervention. We assessed the use of early pregnancy HbA1c in predicting excessive fetal growth. Research Design and Methods Women were recruited at antenatal booking from a major maternity unit in the UK. HbA1c was measured at