Oral glucose tolerance testing at gestational weeks ≤16 could predict or exclude subsequent gestational diabetes mellitus during the current pregnancy in high risk group

With regard to the very high negative predictive value of the method, pregnant women with glucose levels of ≤5.3 mmol/l at fasting and of ≤6.8 mmol/l at postload in gestational weeks ≤16 should undergo subsequent oral glucose tolerance testing merely at gestational weeks 32-34. Approximately a quarter (24.5%) of the pregnant women at risk of gestational diabetes satisfied these criteria.