Journal of Autism and Developmental Disorders

, Volume 39, Issue 8, pp 1099–1111

Trends in Autism Spectrum Disorder Diagnoses: 1994–2007

Authors

  • Rebecca E. Rosenberg
    • Department of Medical InformaticsKennedy Krieger Institute, Johns Hopkins Medical Institutions
  • Amy M. Daniels
    • Department of Mental HealthJohns Hopkins Bloomberg School of Public Health
  • J. Kiely Law
    • Department of Medical InformaticsKennedy Krieger Institute, Johns Hopkins Medical Institutions
  • Paul A. Law
    • Department of Medical InformaticsKennedy Krieger Institute, Johns Hopkins Medical Institutions
    • Department of PediatricsJohns Hopkins University School of Medicine, Johns Hopkins Medical Institutions
    • Center for Genetic Disorders of Cognition & BehaviorKennedy Krieger Institute
    • Departments of Pathology, Neurology, Pediatrics, Psychiatry, and RadiologyJohns Hopkins University School of Medicine, Johns Hopkins Medical Institutions
Original Paper

DOI: 10.1007/s10803-009-0723-6

Cite this article as:
Rosenberg, R.E., Daniels, A.M., Law, J.K. et al. J Autism Dev Disord (2009) 39: 1099. doi:10.1007/s10803-009-0723-6
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Abstract

We analyzed predictors of parent-reported initial diagnosis (autistic disorder [AD], pervasive developmental disorder-not otherwise specified [PDD-NOS], pervasive developmental disorder [‘PDD’] and autism spectrum disorder [‘ASD’], and Asperger syndrome [AS]), among 6,176 individuals with autism spectrum disorders diagnosed from 1994 through 2007. Overall, distribution of diagnoses was influenced by a secular time trend factor; other significant factors included ethnicity, white race, geographic location, urbanicity, and initial evaluator. Since 2001, most initial diagnoses of AD and AS have remained steady while ‘PDD’ and PDD-NOS have decreased. ‘ASD’ diagnoses have increased, especially among school-based teams; AS diagnoses also increased uniquely among these evaluators. Findings from this study suggest that current diagnostic guidelines may not be meeting all community evaluator needs.

Keywords

AutismAsperger syndromePervasive developmental disorderHealth disparityClassification

Copyright information

© Springer Science+Business Media, LLC 2009