miR-518f-5p was significantly correlated with IGFBP-3 (r = 0.404, p = 0.011) in the GDM normal birthweight group and showed a moderate positive correlation with IGF-1 (r = 0.316, p = 0.039) in the GDM-LGA group. This evidence concerns the gene IGFBP3 and gestational diabetes.