Recurrence Risk for Autism Spectrum Disorders: A Baby Siblings Research Consortium Study

Pediatrics, Ozonoff et al.
Year Published: 

A study published August 15, 2011 in the journal Pediatrics found that infants with an older autistic sibling have a near 19 percent risk that they too will develop the disorder. The study is considered the largest autism study to follow infants for sibling recurrence.