Autism after Adolescence: Population-based 13- to 22-year Follow-up Study of 120 Individuals with Autism Diagnosed in Childhood

  • Eva Billstedt
  • Carina Gillberg
  • Christopher Gillberg

Abstract

Background: Prospective population-based follow-up study of 120 individuals with autism followed from childhood to adulthood. Methods: Individuals with autism, diagnosed in childhood, were followed prospectively for a period of 13–22 years and re-evaluated at ages 17–40 years. The instruments used at follow-up were the DISCO, WAIS-R, WISC-III, Vineland Adaptive Behavior Scales, psychiatric-medical examination and GAF-scale. A set of criteria was used for the classification of outcomes, taking into consideration employment, higher education/vocational training, independent living and peer relations. Results: Six of the 120 (5%) had died at the time of follow-up, and six declined participation. Overall outcome was poor in 78% of cases. Only four individuals were independent albeit leading fairly isolated lives. Childhood IQ-level was positively correlated with better adult outcome, as was the existence of some communicative phrase speech at age six years. Conclusions: Children with autism as diagnosed in the 1960s, 1970s, and 1980s may have an even worse psychosocial outcome than previously believed.

Keywords

Autism epidemiology outcome epilepsy adolescence 

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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • Eva Billstedt
    • 1
    • 3
  • Carina Gillberg
    • 1
  • Christopher Gillberg
    • 1
    • 2
  1. 1.Department of Child and Adolescent PsychiatryQueen Silvia’s Hospital for Children and AdolescentsGöteborgSweden
  2. 2.St George’s Hospital Medical SchoolLondonUK
  3. 3.Department of Child and Adolescent PsychiatryUniversity of GöteborgGöteborgSweden

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