Compared to women with NGT, women with insulin-insufficient GDM were older (34.3±4.8 vs 31.2±4.9 years; p<0.001) and leaner (30.1±5.3 vs 32.4±6.5 kg/m2; p=0.006), and their offspring were approximately seven centiles higher in terms of birthweight (GROW, p=0.045; not significant for INTERGROWTH). This evidence concerns the gene INS and gestational diabetes.