Wealthy families are twice as likely to have children with autism, and no one knows why, according to a new study from the University of Wisconsin in Madison.
Experts have known since the 1940s that affluent parents are more likely to have children with this spectrum, but the prevalent theory was that children from wealthier families were more likely to be diagnosed and to seek medical help. Dr. Maureen Durkin set out to design a study that would determine if that were the case or if something else was going on.
Professor Durkin took census information on socioeconomic status that includes education, profession, and income level and data from the Centers for Disease Control and Prevention's Autism and Developmental Disabilities Monitoring Network. She found that children from affluent families were twice as likely to have autism than the poorest children.
"We demonstrated that there is this association," she said. "It is statistically significant, and it is there, but we really cannot show why it is there. There may be a genetic predisposition to both becoming highly successful and to be at risk for autism."
This study was published in PLoS One.
Labels: autism, economics
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