Our study found that using HbA1c for GDM screening may help to eliminate the need of OGTT in our study population, however, with 15.0% of GDM patients being missed and 4.3% of normal women being wrongly labeled as GDM. Thus, whether HbA1c be employed for the screening procedure could be beneficial remains to be determined.
Our data showed that HbA1c at GDM screening was associated with increased risks of preterm delivery, neonatal hyperbilirubinemia and neonatal asphyxia.
Our study has strengths in large size and detailed information regarding study population, covering many pregnancy outcomes.