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.
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Acknowledgments
This study was financially supported by the Mackpesquisa, Mackenzie Presbyterian University, São Paulo-SP, Brazil. We are grateful to all study participants and professionals from the Atibaia’s health and educational public services.
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Paula, C.S., Ribeiro, S.H., Fombonne, E. et al. Brief Report: Prevalence of Pervasive Developmental Disorder in Brazil: A Pilot Study. J Autism Dev Disord 41, 1738–1742 (2011). https://doi.org/10.1007/s10803-011-1200-6
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DOI: https://doi.org/10.1007/s10803-011-1200-6