Glycated albumin (GA) trajectories across pregnancy, NICHD Fetal Growth Studies–Singletons Cohort. Trajectories identified based on a semiparametric latent class approach. Group 1 (line “1”) GA stable across pregnancy; Group 2 (line “2”) increase in GA concentrations at the fasting visit. Dotted lines represent 95% confidence intervals. Percentages represent the proportion of data estimated to make up each group.