Incidence and outcomes of gestational diabetes mellitus using the new IADPSG criteria in Hôpital Maisonneuve-Rosemont

Published on Oct 1, 2019in Canadian Journal of Diabetes2.89
· DOI :10.1016/j.jcjd.2019.10.003
Alexandra Pouliot (Hôpital Maisonneuve-Rosemont), Riham Elmahboubi (Hôpital Maisonneuve-Rosemont), Catherine Adam (Hôpital Maisonneuve-Rosemont)
Abstract Background At one Canadian university hospital, pregnant women have been routinely screened for gestational diabetes mellitus (GDM) with a 75g OGTT. Diagnostic plasma glucose thresholds were: fasting: ≥5.3mmol/l, 1-hr: ≥10.6mmol/l or 2-hr: ≥9.0mmol/l. In 2015, diagnostic thresholds were reduced to those recommended by the International Diabetes in Pregnancy Study Group (IADPSG): fasting ≥ 5.1mmol/l, 1-hr ≥10.0mmol/l or 2-hr ≥8.5mmol/l. However, subsequent Diabetes Canada guidelines state that further evidence is required before recommending those thresholds. Objective To compare pregnancy outcomes of all pregnant women who underwent a 75g OGTT before and after the adoption of the IADPSG criteria. Methods Pregnancy outcomes of all women (N= 2830) that had a pregnancy OGTT at the Hopital Maisonneuve-Rosemont between July 1st 2014- March 1st 2015, (Pre-IADPSG group) were compared with women who were screened between March 1st2015- January 1st2016, (post-IADPSG group). Medical files were reviewed to compare outcomes. Results Women in the post-IADPSG group had a higher early BMI (26.3 kg/m2 vs 25.5kg/m2, p=0.01) and more chronic hypertension (3.7% vs 1.2%, p Conclusion Adopting IADPSG as criteria for GDM, improved pregnancy outcomes in our obstetric population.
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