FABP4 and gestational diabetes: In the fully adjusted model, positive associations of FABP4 concentrations in the first trimester (highest tertile: OR = 2.053, 95% CI 1.091 to 3.863; P for trend = 0.008) and the second trimester (highest tertile: OR = 2.447, 95% CI 1.305 to 4.588; P for trend = 0.015) with GDM risk were observed.