GW29-e1671 Importance of first-trimester HbA1c on identifying adverse perinatal events: a prospective nested case-control study

Pregnant women with gestational diabetes mellitus (GDM) are observed in high risk of perinatal adverse events. However, women under strict management of plasma glucose were not get rid of adverse events. The impact of HbA1c on identifying perinatal adverse events was unclear. The aims of the study