Project Detail
Interagency Autism Coordinating Committee (IACC) logo
Office of Autism Research Coordination (OARC) logo

International trends in diagnoses and incidence of autism spectrum disorders  

Although there have been numerous studies investigating the increased prevalence or "epidemic" of autism spectrum disorders (ASD), it is still not clear whether this relates to a true increase in ASD. Factors such as increased awareness by parents and clinicians, methods of reporting, and changing diagnostic criteria may account for this apparent increase. This study will analyze population-based records of ASD diagnoses which used diagnostic criteria that remained constant over time. Two datasets of ASD diagnoses will be analyzed: one from Denmark, and one from Western Australia. These datasets used different diagnostic criteria consistently (the Diagnostic and Statistical Manual of Mental Disorders (DSM) for Western Australia, and the International Statistical Classification of Diseases and Related Health Problems (ICD) for Denmark). This study will determine whether the criteria used affected the age at which ASD is first diagnosed, and thus affected the perceived incidence. Project Status
ONGOING

2010

Funder Autism Speaks
Fiscal Year Funding $0.00
Current Award Period 2008-2010
Project Number 2561
Principal Investigator Glasson, Emma
Received ARRA Funding? No
Strategic Plan Question Question 1: When Should I Be Concerned? (Diagnosis)
Subcategory Diagnostic and Screening Tools
Strategic Plan Objective Green dot: Objective has greater than or equal to the recommended funding. 1SB. Validate and improve the sensitivity and specificity of new or existing screening and diagnostic tools, including comparative studies of general developmental screening versus autism-specific screening tools, in both high-risk and population-based samples, including those from resource-poor international settings and those that are diverse in terms of age, socio-economic status, race, ethnicity, gender, characteristics of ASD, and general level of functioning by 2012. IACC Recommended Budget: $5,400,000 over 3 years.
Federal or Private? Private
Institution Telethon Institute for Child Health Research
State/Country Australia
Web Link 1 International trends in diagnoses and incidence of autism spectrum disorders (External web link)
Web Link 2 No URL available.
Web Link 3 No URL available.
New! History/Related Projects International trends in diagnoses and incidence of autism spectrum disorders | $54,865.80 | 2009 | 2561
International trends in diagnoses and incidence of autism spectrum disorders | $64,023.00 | 2008 | 2561