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J Autism Dev Disord. 2012 Jul;42(7):1491-7. doi: 10.1007/s10803-011-1391-x.

The prevalence of autism spectrum disorders in toddlers: a population study of 2-year-old Swedish children.

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1
Gillberg Neuropsychiatry Centre, Sahlgrenska Academy, University of Gothenburg, Kungsgatan 12, 411 19 Gothenburg, Sweden. gudrun.nygren@neuro.gu.se

Erratum in

  • J Autism Dev Disord. 2012 Jul;42(7):1498.

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.

PMID:
22048962
DOI:
10.1007/s10803-011-1391-x
[Indexed for MEDLINE]
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