About 1 in 40 children in the United States has autism, according to a survey conducted in 2016. Roughly 30 percent of those children were not being treated for the condition at the time.
Spectrum: Autism Research News
The rising prevalence of autism is not leveling off, according to a new study that accounts for every diagnosis made in Denmark over 32 years.
The network of researchers keeping tabs on autism prevalence in U.S. children plans to follow up with some of those children in adolescence.
How researchers design autism prevalence studies has a significant impact on the results, says Eric Fombonne.
About 10 percent of people with a large mutation in chromosome 22 have autism, attention deficit hyperactivity disorder or intellectual disability.
The bulk of the increase in autism prevalence in the United States between 2000 and 2012 can be attributed to children on the mild end of the spectrum.