Autism spectrum disorder symptoms among children enrolled in the Study to Explore Early Development (SEED)

J Autism Dev Disord. 2015 Oct;45(10):3183-94. doi: 10.1007/s10803-015-2476-8.

Abstract

This study examined the phenotypic profiles of children aged 30-68 months in the Study to Explore Early Development (SEED). Children classified as autism spectrum disorder (ASD), developmental delay (DD) with ASD symptoms, DD without ASD symptoms, and population comparison (POP) differed significantly from each other on cognitive, adaptive, behavioral, and social functioning and the presence of parent-reported conditions. Children with ASD and DD with ASD symptoms had mild to severe ASD risk on several measures compared to children with other DD and POP who had little ASD risk across measures. We conclude that children in SEED have varying degrees of ASD impairment and associated deficits. SEED thus provides a valuable sample to explore ASD phenotypes and inform risk factor analyses.

Keywords: Autism; Etiology; Phenotype; Study to Explore Early Development; Symptoms.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Autism Spectrum Disorder / complications
  • Autism Spectrum Disorder / diagnosis*
  • Autism Spectrum Disorder / epidemiology
  • Child
  • Child Development*
  • Child, Preschool
  • Developmental Disabilities / complications
  • Developmental Disabilities / diagnosis*
  • Female
  • Humans
  • Male
  • Parents
  • Phenotype