Figure 1.

Model-estimated group trajectories of nonverbal cognitive skills and adaptive skills from 12 to 36 months for all diagnostic groups. Adaptive standard scores derived from the Vineland Adaptive Behavior Scales. Nonverbal DQ standard scores derived from the Mullen Scales of Early Learning, visual reception and fine motor domain. All standard scores have a mean of 100 and standard deviation of 15. Trajectories of adaptive communication and adaptive daily living skills for TD^a are significantly different than those of UA^b, BAP^b, and ASD^b. Trajectories of adaptive socialization for TD^a and UA^a are significantly different from trajectories of ASD^b and BAP^b. Estimates and p-values are presented in Table 2.