Prevalence of Autism Spectrum Disorder (ASD)
![](https://cichprofile.ca/wp-content/uploads/2017/09/7.6.12_final_final_final_autism.png)
Source: CICH graphic created using data adapted from the National Epidemiologic Database for the Study of Autism in Canada (NEDSAC) reported on Autism Ontario Knowledge Base.
http://autismontario.novosolutions.net/default.asp?id=133 -accessed June 21, 2017.
According to The National Epidemiologic Database for the Study of Autism in Canada (NEDSAC), their best estimate of the prevalence of autism spectrum disorders in Canada is 1 in 94 children 6 to 9 years of age. This is based on monitoring in Newfoundland and Labrador (2008), Prince Edward Island (2010) and Southeastern Ontario (2010).1 NEDSAC reports that prevalence of autism appears to be increasing, based on the information they have collected since 2003.1
ASD is caused by a combination of genetic and environmental influences.
Autism occurs in all racial, ethnic and socioeconomic groups.
The Public Health Agency of Canada is working with the provinces and territories to develop a National Autism Surveillance System. The System will provide estimates for prevalence of autism spectrum disorder, as well as look at differences across regions, make international comparisons and identify risk factors.2
1National Epidemiologic Database for the Study of Autism in Canada (NEDSAC) reported on Autism Ontario Knowledge Base. http://autismontario.novosolutions.net/default.asp?id=133-accessed June 21, 2017.
2Public Health Agency of Canada. Autism Spectrum Disorder (ASD) Published: (2015-10-22). Data Blog. http://infobase.phac-aspc.gc.ca/datalab/autism-blog-en.html-accessed June 26, 2017.
Implications
Autism has a significant and lifelong impact on individuals living with the disorder, as well as their families.