Icahn School of Medicine at Mount Sinai - Department of Psychiatry; Icahn School of Medicine at Mount Sinai - Department of Genetics and Genomic Sciences; Icahn School of Medicine at Mount Sinai - Icahn Institute for Genomics and Multiscale Biology; Icahn School of Medicine at Mount Sinai - Seaver Autism Center for Research and Treatment; James J. Peters Veterans Affairs Medical Center - Mental Health Care Center
Date Written: May 30, 2019
Abstract
The objective of this study is to gain new insights into the relationship between clinical signs and age at diagnosis utilizing a new, large, online survey of parents of children diagnosed with ASD. Using multiple statistical approaches, we find that clinical signs and symptoms that most strongly predict early diagnosis are not necessarily specific to autism, but rather those that initiate the process that eventually leads to an ASD diagnosis. Given the high correlations between symptoms, only a few symptoms are found to be important in predicting early diagnosis. Even though our data are drawn from parents’ retrospective accounts, we provide evidence that parental recall bias and/or hindsight bias did not play a significant role in shaping our results.
Keywords: Autism spectrum disorder; symptoms; clinical signs; early diagnosis; diagnosis age; regression trees
Sicherman, Nachum and Charité, Jimmy and Eyal, Gil and Janecka, Magdalena and Loewenstein, George F. and Law, Kiely and Lipkin, Paul and Marvin, Alison and Buxbaum, Joseph D., Clinical Signs Associated with Earlier Diagnosis of Children with Autism Spectrum Disorder (May 30, 2019). Available at SSRN: https://ssrn.com/abstract=3398420 or http://dx.doi.org/10.2139/ssrn.3398420
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