Autism is a neurodevelopmental disorder characterized by impairments in social relating, language, and by the presence of repetitive and stereotyped behaviors.

This report provides a summary of caseload growth of individuals with Autistic Spectrum Disorders served by the California Department of Developmental Services. Changing patterns in age, ethnicity, cognitive level, residence status, and geographic location are described.

Addendum to Figure 4: Autism as a Proportion of Regional Center Caseload 1992-2007 PDF (Page 11)

Autistic Spectrum Disorders: Best Practices in Inter-Organizational Collaboration PDF

A how-to manual for organizations working to integrate services for persons with autistic spectrum disorders and their families.

Autistic Spectrum Disorders: Best Practice Guidelines for Screening, Diagnosis and Assessment PDF

This publication provides professionals, policymakers, parents and others with detailed “best practice” recommendations and rationale for screening, evaluating and assessing individuals suspected of having autistic spectrum disorders. These guidelines are the product of nearly a year’s work by experts in the field of autistic spectrum disorders and are based on validated scientific evidence, clinical experience and clinical judgment.

DDS Autism Spectrum Disorder Initiative Highlights (PDF – Updated 4/15/09)

The DDS Autism Spectrum Disorder Initiative was created in response to the increasing numbers of persons diagnosed with autism served by the Department of Developmental Services.

2003 DDS Autism Report PDF

This report is an update of the 1999 Autism Report and provides information on the population on persons with Autistic Spectrum Disorder served by the California Department of Developmental Services through 2002.

1999 DDS Autism Report PDF

A report to the Legislature on changes in the population of persons with Autism and Pervasive Developmental Disorders in California’s Developmental Services System: 1987 through 1998.

Epidemiology Report of Autism in California

The Report to the Legislature by The M.I.N.D. Institute on the Principal Findings from the Epidemiology of Autism in California.

The CHARGE Study (Childhood Autism Risks from Genetics and the Environment)

UC Davis researchers in 2001 launched the first-ever major epidemiological case-control study of both genetic and environmental factors that may affect the development of autism, intellectual disability and developmental delay in children. They are aiming to study between 1,000 and 2,000 persons with autism and their families.

Last modified: October 28, 2019