Journal of Autism and Developmental Disorders

, Volume 41, Issue 12, pp 1738–1742 | Cite as

Brief Report: Prevalence of Pervasive Developmental Disorder in Brazil: A Pilot Study

  • Cristiane S. Paula
  • Sabrina H. Ribeiro
  • Eric Fombonne
  • Marcos T. Mercadante
Brief Report

Abstract

This pilot study presents preliminary results concerning the prevalence of Pervasive Developmental Disorder (PDD) in South America. It was a three-phase study conducted in a typical town in Southeast Brazil. Case definition was based in a combination of standardized instruments and clinical evaluations by experts. The prevalence of PDD was 27.2/10,000 (95% CI: 17.6–36.8) and some hypotheses were raised to explain this low frequency. Clinical findings of PDD cases were consistent with previous data, such as, male preponderance, more children diagnosed with PDD-NOS than with autistic disorder, and half of them born from older mothers. Moreover, the study raised concerns about treatment of cases, because identification of PDD had been late and access to services has been very limited.

Keywords

Prevalence Pervasive developmental disorders Autism Epidemiological studies South America 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Cristiane S. Paula
    • 1
    • 2
  • Sabrina H. Ribeiro
    • 1
  • Eric Fombonne
    • 3
  • Marcos T. Mercadante
    • 2
  1. 1.Developmental Disorder Post Graduation ProgramMackenzie Presbyterian UniversitySão PauloBrazil
  2. 2.Department of PsychiatryFederal University of São PauloSão PauloBrazil
  3. 3.Department of Psychiatry—Montreal Children’s HospitalMcGill UniversityMontrealCanada

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