Journal of Autism and Developmental Disorders

, Volume 44, Issue 8, pp 1808–1818 | Cite as

Time Trends Over 16 Years in Incidence-Rates of Autism Spectrum Disorders Across the Lifespan Based on Nationwide Danish Register Data

  • Christina Mohr Jensen
  • Hans-Christoph Steinhausen
  • Marlene Briciet Lauritsen
Original Paper

Abstract

This study investigated time trends and associated factors of incidence rates of diagnosed autism spectrum disorders (ASD) across the lifespan from 1995 to 2010, using data from the Danish Psychiatric Central Research Registry. First time diagnosis of childhood autism, atypical autism, Asperger’s syndrome, or pervasive developmental disorder—unspecified (PDD-NOS) were identified, incidence rates were calculated, and data were fitted using non-linear least squares methods. A total of 14.997 patients were identified and incidence rates for ASD increased from 9.0 to 38.6 per 100,000 person years during the 16-year period. The increases were most pronounced in females, adolescents, adults, and patients with Asperger’s syndrome and PDD-NOS.

Keywords

ASD Autism Incidence Time-trend 

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Christina Mohr Jensen
    • 1
  • Hans-Christoph Steinhausen
    • 1
    • 2
    • 3
  • Marlene Briciet Lauritsen
    • 1
  1. 1.Research Unit for Child and Adolescent Psychiatry, Aalborg Psychiatry HospitalAalborg University HospitalAalborgDenmark
  2. 2.Clinical Psychology and Epidemiology, Institute of PsychologyUniversity of BaselBaselSwitzerland
  3. 3.Department of Child and Adolescent PsychiatryUniversity of ZurichZurichSwitzerland

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