Surveillance of autism spectrum disorder (ASD)

Discover how autism spectrum disorder (ASD) is monitored.

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How many people are living with ASD in Canada?

Based on 2015 data, it is estimated that 1 in 66 Canadian children and youth ages 5-17 have been diagnosed with ASD.

It is estimated that males are diagnosed with ASD four times more frequently than females.

How does Canada monitor ASD?

In Canada, ASD is monitored by the National ASD Surveillance System (NASS). NASS is a collaboration of federal, provincial and territorial governments, working to build a comprehensive picture of ASD among children and youth in Canada.

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