Figure 1.

Distributions of MSEL Composite scores and T-scores of four subscales at 6, 12, 24, and 36 months of age for the selected baseline population (n = 311 children). Red crosses denote mean values at each time point. Blue asterisks denote differences in mean scores with other time points identified by the estimated marginal means (EMM) test with Tukey’s Honestly Significant Difference (HSD) correction following the linear mixed model at the significance level of 0.05. Composite scores have a normative mean of 100 and a standard deviation (SD) of 15 and T-scores of each subscale have a normative mean of 50 and an SD of 10.