What percentage of children with autism are diagnosed with Fragile X syndrome (FXS)?

Approximately 2-6% of children with autism are diagnosed with Fragile X syndrome. Fragile X syndrome is the leading known single gene cause of autism spectrum disorder.

Learn more:

• Autism and Fragile X Syndrome 
• Treatment Recommendation: Understanding Autism Spectrum Disorder in Fragile X syndrome 
• NFXF Webinar: Autism Spectrum Disorder in Fragile X Syndrome