What Researchers Did
This clinical guideline provides an overview of Autism Spectrum Disorder (ASD), covering its epidemiology, screening methods, diagnostic criteria, and evidence-based interventions.
What They Found
Autism Spectrum Disorder (ASD) affects approximately 1% to 2% of all children, and the Modified Checklist for Autism in Toddlers (M-CHAT) is a helpful screening tool for children aged 16 to 30 months. The DSM-5 revised diagnostic criteria, moving from a 3-symptom to a 2-symptom category. Applied behavioral analysis and intensive behavioral programs show beneficial effects on language and core deficits, while most complementary and alternative medicine therapies lack evidence.
What This Means for Canadian Patients
Canadian patients with suspected ASD can benefit from early screening using tools like the M-CHAT and accurate diagnosis based on current criteria. Access to evidence-based interventions such as applied behavioral analysis can improve language and core deficits, while unproven complementary therapies should be approached with caution.
Canadian Relevance
This guideline does not have a specific Canadian connection, as it is a general clinical guide for autism.
Study Limitations
A limitation is the ongoing lack of strong evidence for many complementary and alternative medicine therapies used by parents for autism.