Changes in the administrative prevalence of autism spectrum disorders: Contribution of special education and health from 2002-2008

Judith Pinborough-Zimmerman, Amanda V. Bakian, Eric Fombonne, Deborah Bilder, Jocelyn Taylor, William M. McMahon

Research output: Contribution to journalArticle

32 Scopus citations


This study examined changes in the administrative prevalence of autism spectrum disorders (ASD) in Utah children from 2002 to 2008 by record source (school and health), age (four, six, and eight), and special education classification. Prevalence increased 100% with 1 in 77 children aged eight identified with ASD by 2008. Across study years and age groups rates were higher when health and school data were combined with a greater proportion of cases ascertained from health. The proportion of children with both a health ASD diagnosis and a special education autism classification did not significantly change. Most children with an ASD health diagnosis did not have an autism special education classification. Findings highlight the growing health and educational impact of ASD.

Original languageEnglish (US)
Pages (from-to)521-530
Number of pages10
JournalJournal of autism and developmental disorders
Issue number4
StatePublished - Apr 1 2012



  • Autism
  • Epidemiology
  • Prevalence
  • Special education classification

ASJC Scopus subject areas

  • Developmental and Educational Psychology

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