The New York Times
The rate at which doctors diagnosed autism and related disorders in 8-year-olds increased between 2008 and 2010 in some parts of the country, a report released by the federal Centers for Disease Control and Preventionon Thursday said. The average rate was one in 68 children, up from one in 88 in 2008. The report — based not on direct diagnoses but on a review of records — was not nationally representative and drew on data gathered three years before a significant tightening in the clinical definition of autism. The likelihood of receiving a diagnosis of autism has increased sharply over the past three decades, and no one knows why, or whether the 2010 numbers are currently meaningful.
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