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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

A set of parents sit at the table with their child to fill out paperwork for a research study.

You’ll complete questionnaires about your family and your baby.

A psychologist works with a father and son during a session to evaluate the child's development.

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.