Figure 1.

Comparison of mean fetal biometry in gestational diabetes mellitus (GDM) and non-GDM mothers by gestational age. Mean Head circumference (a), biparietal diameter (b), abdominal circumference (c) and femur length (d) of fetuses in pregnancies ultimately diagnosed with GDM (dashed line) vs. pregnancies that remained normoglycemic (solid line), by gestational age. * Significant difference (p < 0.05) in size between GDM-exposed fetuses and unexposed fetuses. Three squares in each plot indicate weeks in which routine ultrasound scans were typically performed.