The Next Generation Siblings Study
Studying early development in children with second-degree relatives on the spectrum.
Download the Full Research Summary
This PDF highlights recent findings on the recurrence of autism in families, including how risk varies by child’s sex and family history. The summary includes key insights from studies conducted by leading autism research teams across the U.S., Canada, and Europe.
Autism Recurrence Rates
Understand how often autism is diagnosed in later-born children within affected families.
Second-Degree Relative Risk
See how uncles or aunts with autism impact a child’s chances of being diagnosed.
Parental Lineage Influence
Understand how autism risk differs between maternal and paternal family history.
Graphs and Study References
Includes visual summaries and citations from key autism research publications.
Can I Participate?
You’re eligible to participate if:
- You have a sibling diagnosed with autism
- You have a baby (12 months or younger) or are currently expecting
Why Should I Participate?
You can support autism reasearch while learning more about your baby.
You’ll have access to expert clinicians, assessments, and personalized reports you can share with your pediatrician or use to access services, if needed.
What to Expect
You’ll complete questionnaires about your family and your baby.
Assessments will be done by expert autism clinicians at one of 8 sites across the US, Canada, and UK; or by remote telehealth if preferred.
Ready to Join the Study?
If you’re a parent with a sibling diagnosed with autism and your child is 12 months or younger, you may qualify.


