This cross-sectional study (n = 87) evaluated differences in continous glucose monitoring system (CGMS) profile between women with normoglycemia and early gestational diabetes (GDM) missed using isolated fasting plasma glucose-based strategies alternative to WHO 2013 criteria.

A total of 38 women had GDM, of whom 27 (71%) would be perceived as normoglycemic using isolated fasting plasma glucose (FPG) cutoff ≥ 5.6 mmol/L (100 mg/dL).

Women with missed diagnosis had significantly worse CGMS parameters, such as 24-h mean glucose, fasting glucose, 1-h and 2-h postprandial glucose (PPG), 1-h PPG excursion, and peak PPG.