Salt Lake City, UT – Utah and 13 other states have been working to determine just how prevalent autism is among children, and the results show a dramatic increase in the number of cases compared to earlier studies. Psychiatrist William McMahon is director of the Utah Autism Resarch Program. He says it's becoming clear now that autism-related disorders are far more common than previously thought. He spoke to KUER's Dan Bammes.
Published study in Morbidity and Mortality Weekly Report.