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 Spectrum Disorder: Understanding ASD and Its Spectrum
The term "spectrum" acknowledges that autism does not look the same in every person.
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Autism Spectrum Disorder: Understanding ASD and Its Spectrum The term "spectrum" acknowledges that autism does not look the same in every person. DSM-5 replaced older categories (Asperger, PDD-NOS) with one unified ASD diagnosis Co-occurring conditions (ADHD, anxiety) are common in autistic people An ASD diagnosis is a mandatory requirement for OAP registration. Read the guide www.endthewaitontario.com/autism-spectrum-disorder
Download English captions (WebVTT)The term "spectrum" acknowledges that autism does not look the same in every person. A short explainer with music and captions. 55 seconds.
Next
- Running time 0:49 Getting a diagnosis
Can a Family Doctor Diagnose Autism in Ontario?
Some general pediatricians with specialized training in developmental assessment can diagnose autism. - Running time 0:45 Getting a diagnosis
Do I Have Autism? Signs, Self-Check & Next Steps
Only a qualified health professional can diagnose autism. - Running time 0:54 Getting a diagnosis
Family Doctor Autism Referral Guide (Ontario)
Ontario uses the M-CHAT-R/F (18-month and 24-month checkpoints) as a primary-care screening tool.
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Facts 3
Sources 3
Evidence supports autism screening and intervention commencing in the first 2 years of life — earlier identification directly enables earlier intervention during the highest neural plasticity window
Primary source Zwaigenbaum L, Bauman ML, Stone WL, et al. (2015) Verified 2015-10-01
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