Table 3. Autism Severity Trajectory Classes.
n (%) | Mean Posterior Probability |
Intercept | Slope | |
---|---|---|---|---|
Persistent High | 47 (36.4%) | .90 | 9.18 | −0.24 |
Persistent Moderate | 54 (41.8%) | .78 | 7.12 | −0.05 |
Worsening | 10 (7.8%) | .77 | 4.42 | 0.58 |
Improving | 18 (14.0%) | .73 | 6.43 | −0.53 |
Note. Children were assigned to the class with the highest posterior probability. Mean Posterior Probability values are presented for classifying children into each of the four classes. Intercept is the mean calibrated severity score at Time 1 (age 2½).
Slope is the mean change in calibrated severity score per year.