Figure 4.

Graphs (A) and (B) show the predicted probabilities of productive vocabulary according to maternal thyrotropin (TSH) ≤2.5 or >2.5 mIU/L and plotted by offspring age of girls and boys, respectively (model 5). Graphs (C) and (D) show the predicted probabilities of productive vocabulary at the 5th, 50th^th, 95th, and 99th percentile of maternal TSH and plotted by offspring age of girls and boys, respectively (model 6). The lines represent the predicted mean trajectories with corresponding 95% CIs. Numbers in (A) and (B) represent complete cases included in the analyses of maternal TSH ≤2.5 or >2.5 mIU/L, respectively.