Journal of Autism and Developmental Disorders

, Volume 42, Issue 7, pp 1491–1497

The Prevalence of Autism Spectrum Disorders in Toddlers: A Population Study of 2-Year-Old Swedish Children

Authors

    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
  • Mats Cederlund
    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
  • Eva Sandberg
    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
  • Fredrik Gillstedt
    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
  • Thomas Arvidsson
    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
  • I. Carina Gillberg
    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
  • Gunilla Westman Andersson
    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
  • Christopher Gillberg
    • Gillberg Neuropsychiatry Centre, Sahlgrenska AcademyUniversity of Gothenburg
Original Paper

DOI: 10.1007/s10803-011-1391-x

Cite this article as:
Nygren, G., Cederlund, M., Sandberg, E. et al. J Autism Dev Disord (2012) 42: 1491. doi:10.1007/s10803-011-1391-x

Abstract

Autism Spectrum Disorder (ASD) is more common than previously believed. ASD is increasingly diagnosed at very young ages. We report estimated ASD prevalence rates from a population study of 2-year-old children conducted in 2010 in Gothenburg, Sweden. Screening for ASD had been introduced at all child health centers at child age 21/2 years. All children with suspected ASD were referred for evaluation to one center, serving the whole city of Gothenburg. The prevalence for all 2-year-olds referred in 2010 and diagnosed with ASD was 0.80%. Corresponding rates for 2-year-olds referred to the center in 2000 and 2005 (when no population screening occurred) were 0.18 and 0.04%. Results suggest that early screening contributes to a large increase in diagnosed ASD cases.

Keywords

Autism Autism spectrum disorder Prevalence Early detection Screening Diagnostic instruments

Copyright information

© Springer Science+Business Media, LLC 2011