About 7 Percent of Kids Worldwide Have ADHD: Study

March 3, 2015 5:00 PM

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TUESDAY, March 3, 2015 (HealthDay News) -- About 7 percent of children worldwide have attention-deficit/hyperactivity disorder (ADHD), new research concludes.

This estimate -- which differs significantly from other recent appraisals -- is based on data from 175 prior studies conducted over nearly four decades.

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