Trajectories of Autism Symptom Severity Change During Early Childhood.

J Autism Dev Disord

The MIND Institute and Department of Psychiatry and Behavioral Sciences, University of California Davis, 2825 50th Street, Sacramento, CA, 95817, USA.

Published: January 2021

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.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7810617PMC
http://dx.doi.org/10.1007/s10803-020-04526-zDOI Listing

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