INS and type 1 diabetes mellitus: Moreover, the insulin dosage at delivery by placental weight ratio in the T2DM+HDP group was higher than that in the T2DM alone group (p = 0.0011), that in the T1DM + HDP group (p = 0.0033), and that in the T1DM alone group (p = 0.0003; Fig 3D).