However, in linear regression analysis, a significant negative association was observed between GDF-15 and fetal weight percentile at the third trimester, only in patients with GDM (ß −0.09 [−0.15, −0.02] 95% CI, p = 0.013), not in NGT (ß 0.01 [−0.03, 0.06] 95% CI, p = 0.491). Here, GDF15 is linked to gestational diabetes.