Authors:
Leonard H, Dixon G, Whitehouse AJO, Bourke J, Aiberti K, Nassar N, Bower C, Glasson EJ
Authors notes:
Research in Autism Spectrum Disorders 2010;4:548-54
Keywords:
autism epidemic, etiology, autism spectrum disorders, increasing prevalance, epidemiological investigation, rising trend
Abstract:
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.