New Research on Younger Siblings of Children with Autism Spectrum Disorders

The younger brothers and sisters of children with autism appear to be at greater risk of developing the condition than had been thought, according to research published in the Journal of Pediatrics. The study, "Recurrence Risk for Autism Spectrum Disorders: A Baby Siblings Research Consortium Study" found the recurrence rate to be 18%. Previously, the recurrence rates had been estimated to be between 3% and 10%,