Epidemiology of Pervasive Developmental Disorders

Eric Fombonne, Sara Quirke and Arlene Hagen

in Autism Spectrum Disorders

Published on behalf of Oxford University Press

Published in print May 2011 | ISBN: 9780195371826
Published online September 2012 | e-ISBN: 9780199965212 | DOI:
Epidemiology of Pervasive Developmental Disorders

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  • Child and Adolescent Psychiatry
  • Neurology
  • Neuroscience


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This chapter provides an up-to-date review of the methodological features and substantive results of published epidemiological surveys of the prevalence of pervasive developmental disorders (PDD). The specific questions addressed are: What is the range of prevalence estimates for autism and related pervasive developmental disorders, and what are the correlates of PDD in epidemiological surveys? What interpretation can be given to time trends observed in prevalence rates of PDDs? From recent studies, a best estimate of 70/10,000 (equivalences = 7/1,000; or 0.7%; or 1 child in about 143 children) can be confidently derived for the prevalence of autism spectrum disorders.

Chapter.  14162 words.  Illustrated.

Subjects: Child and Adolescent Psychiatry ; Neurology ; Neuroscience

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