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Leonard, Helen; Dixon, Glenys; Whitehouse, Andrew J. O.; Bourke, Jenny; Aiberti, Karina; Nassar, Natasha; Bower, Carol; Glasson, Emma J. – Research in Autism Spectrum Disorders, 2010
The etiology of autism spectrum disorders is unknown but there are claims of increasing prevalence in many countries. Despite more than a decade of epidemiological investigation, it is still unclear whether the rising trend in prevalence reflects a true increase or changes in diagnostic trends and improvements in case ascertainment. This paper…
Descriptors: Incidence, Autism, Disability Identification, Epidemiology