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Pervasive Developmental Disorders in Young Children
Susan L. Hyman, MD;
Patricia M. Rodier, PhD;
Philip Davidson, PhD
JAMA. 2001;285:3141-3142.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings. |
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There is much concern about whether the prevalence of pervasive developmental disorders (PDDs), sometimes referred to as autistic spectrum disorders, is increasing.1 No study is likely to answer that question because the last 20 years have seen dramatic changes in the diagnostic criteria, an increase in public awareness of autism and related disorders, and sweeping changes in the types and availability of therapeutic and educational services. However, problems with determining whether prevalence of the PDDs is increasing should not serve to distract from the question that can be answered—ie, what is the prevalence of PDDs now.
Determining the prevalence of a behaviorally defined disorder is more difficult than determining the prevalence of conditions for which biological markers exist. The symptoms of PDDs—deficits in social reciprocity and communication and restricted and repetitive behaviors—vary in severity and may appear quite . . . [Full Text of this Article]
Author Affiliations: Departments of Pediatrics, Strong Center for Developmental Disabilities (Drs Hyman and Davidson), and Obstetrics and Gynecology (Dr Rodier), University of Rochester School of Medicine and Dentistry, Rochester, NY.
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