1 in 50
According to the 2019 Canadian Health Survey on Children and Youth, about 1 in 50 children and youth aged 1 to 17 in Canada had an autism diagnosis
Primary source Public Health Agency of Canada (2024) Verified 2024-03-26
Autism and ADHD: Understanding Co-Occurrence in Ontario
Research shows that ADHD commonly co-occurs with autism.
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Autism and ADHD: Understanding Co-Occurrence in Ontario Research shows that ADHD commonly co-occurs with autism. Both conditions should be assessed and addressed in the treatment plan. In Ontario, ask each assessment provider whether they screen for both autism and ADHD. Document attention, organization, and impulse-control needs when they affect daily life. Ask your Ontario Autism Program provider which goals can be included in your child's plan. Read the guide www.endthewaitontario.com/health/autism-and-adhd
Download English captions (WebVTT)Research shows that ADHD commonly co-occurs with autism. A short explainer with music and captions. 53 seconds.
Next
- Running time 0:46 Getting a diagnosis
Autism Health Information for Ontario Families
Access to diagnosis and support is not the same for every family. - Running time 0:52 Getting a diagnosis
Autism Levels 1, 2, and 3: What Do They Mean?
A level describes support needs at one point in time, not ability or worth. - Running time 0:52 Getting a diagnosis
Autism Masking: Hiding Autistic Traits to Fit In
Masking can make it very difficult for clinicians to recognize autism
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91,974
children are registered in the Ontario Autism Program
Primary source MCCSS FOI via OAC · May 2026 Verified 2026-11-03
WHO recommends accessible, community-based early interventions for children with autism. Timely evidence-based psychosocial interventions improve communication and social engagement
Primary source World Health Organization (2025) Verified 2025-09-17
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Last system verification: 2026-11-03. Next scheduled update: 2027-02-01.
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Written by Spencer Carroll
Founder & Autism Advocate
Lived experience: Parent of autistic child in the OAP system