London, Oct 26 : Older mothers and fathers are more likely to have a child with autism, according to a new US study.
In the study, researchers found that first-born children of older parents were three times more likely to develop autism than later children of younger parents.
"The results provide the most compelling evidence to date that autism risk increases with both maternal and paternal age, and decreases with birth order," the Telegraph quoted researchers, as saying.
“The increase in autism risk with both maternal and paternal age has potential implications for public health planning and investigations of autism," they added.