In 2010, the prevalence of eight-year-old children in the United States diagnosed with an autism spectrum disorder (ASD) was estimated at one in 68, or about 1.47% of all children that age. This new estimate is roughly 30% higher than the previous 2008 estimate of one in 88 eight-year-old children being identified with ASD, or 1.13%. The 2010 estimate is based on the prevalence of ASD among 363,749 children at 11 monitoring sites across the United States—5,338 of the 363,749 children have been diagnosed with an ASD, or 14.7 . . .
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