Trajectories of Autism Symptom Severity Change During Early Childhood
Open Access
- 14 May 2020
- journal article
- research article
- Published by Springer Science and Business Media LLC in Journal of Autism and Developmental Disorders
- Vol. 51 (1), 227-242
- https://doi.org/10.1007/s10803-020-04526-z
Abstract
Autism symptom severity change was evaluated during early childhood in 125 children diagnosed with autism spectrum disorder (ASD). Children were assessed at approximately 3 and 6 years of age for autism symptom severity, IQ and adaptive functioning. Each child was assigned a change score, representing the difference between ADOS Calibrated Severity Scores (CSS) at the two ages. A Decreased Severity Group (28.8%) decreased by 2 or more points; a Stable Severity Group (54.4%) changed by 1 point or less; and an Increased Severity Group (16.8%) increased by 2 or more points. Girls tended to decrease in severity more than boys and increase in severity less than boys. There was no clear relationship between intervention history and membership in the groups.Keywords
Funding Information
- NIH (R01MH103371, R01MH104438, R01MH106518, R01MH103284, T32 MH073124, R01MH104438)
- MIND Institute Intellectual and Developmental Disabilities Research Center (U54HD079125)
- Simons Foundation
- Autism Center of Excellence grant awarded by NICHD (P50 HD093079)
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