Risk of autism in siblings nearly double prior estimates
Siblings of children with autism are known to be at increased risk for autistic spectrum disorder, but now researchers at the Washington University in St. Louis School of Medicine led by John N. Constantino, MD, report the risk is substantially higher than previously believed. Their results show that 19 percent of infant siblings develop the disorder by age 3.
Language delays found in siblings of children with autism
Siblings of children with autism have more frequent language delays and other subtle characteristics of the disorder than previously understood. Girls also may be mildly affected more often than recognized in the past, according to a new study, led by researchers at Washington University School of Medicine in St. Louis.