Abstract

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.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.