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Studies put antism rate higher, at 1 in 100
The Boston Globe Tuesday, October 6, 2009 A2 The Nation
CHICAGO--Two new government studies indicate about 1 in 100 children have autism disorder--higher than a previous US estimate of 1 in 150.
Greater awareness, broader definitons, and spotting autism in younger children may explain some of the increease, federal health officials said.
"The concern here is that buried in these numbers is a true increase," said Dr. Thomas Insel, director of the National Institute of Mental Health. "We're going to have to think very hard about what we're going to do for the 1 in 100."
Figuring out how many children have autism is extremetly difficult because diagnosis is based on a child's behavior, said Dr. Dusan E. Levy of the Children's Hospital of Phiuladelphia and a member of the American Academy of Pediatrics subcommittee on autism.
"With daibetes you can get a blood test," said Levy."As of yet, there's no consistent biologic marker we can use to make the diangnosis of autism."
The new estimate would mean about 673,000 American children have autism. Previous estimates put it at about 560,000.
One of the studies stems from the 2007 National Survey of Children's Health. The results were released yesterday. In that study, parents reported that about 1 in 91 children, ages 3 to 17, had autism.
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