Autism Prevalence

It's worth looking beyond the headlines to understand how the CDC arrived at the new autism prevalence numbers, and what those numbers do -- and don't -- mean.

One in 88 U.S. children has an autism spectrum disorder, according to a new report from the Centers for Disease Control and Prevention, representing a...

Increased prevalence does not necessarily mean that there is more autism than there used to be. Instead, it may mean that we are looking for autism more than we used to.

On Friday the nation's top autism research coordinator said that better diagnosis could not "explain away this huge increase" in autism. "There's no question that there is an environmental component here."