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Children could be over-diagnosed with ADHD

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(CBS) - The youngest kids in class could be over-diagnosed with attention-deficit/hyperactivity disorder or ADHD.

A new study in the Canadian Medical Association Journal looked at nearly 1,000,000 kids and found children were 39-percent more likely to be diagnosed with ADHD if they were born in December, compared to children born in January.

The younger kids were also 48-percent more likely to be treated with medication for ADHD.

Click here to read the entire study.