Autism risk in younger children increases if they have older sibling with disorder

A new study found that the risk of younger siblings developing an autism spectrum disorder is 14 times higher if an older sibling has ASD. The study also found the risk level was consistent across gestational age at birth….

A new study found that the risk of younger siblings developing an autism spectrum disorder is 14 times higher if an older sibling has ASD. The study also found the risk level was consistent across gestational age at birth….