Autism spectrum disorders--are they really epidemic?

Eur J Paediatr Neurol

Department of Habilitation, Innlandet Hospital Trust, Maihaugveien 4, 2609 Lillehammer, Norway.

Published: July 2013

Aim: The aim of this paper is to report on how different external methodological factors influence estimates of ASD prevalence.

Methods: PubMed searches was conducted using the search terms, "Autism", "Autistic Disorder", "Autism Spectrum Disorders", "Asperger", "Prevalence" and "epidemiology", in combination. In total 49 studies were included. We also performed a manual search for and reviewed related articles referenced in the original articles.

Results: The reported prevalence rates of ASD vary widely, and so do the methodology used in the studies.

Conclusion: There are reasons to argue that the methods used in some studies cause the high prevalence rates reported recently.

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Source
http://dx.doi.org/10.1016/j.ejpn.2013.03.003DOI Listing

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