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CDC finds 53% rise in past decade; 19% of boys, 10% of girls 14-17 diagnosed

Nearly 1 in 5 high-school-age boys in the United States and 11 percent of school-age children overall have received a medical diagnosis of attention deficit hyperactivity disorder, according to new data from the federal Centers for Disease Control and Prevention.

These rates reflect a marked rise over the past decade and could fuel growing concern among many doctors that the ADHD diagnosis and its medication are overused in American children.

The figures showed that an estimated 6.4 million children ages 4 through 17 had received an ADHD diagnosis at some point in their lives, a 16 percent increase since 2007 and a 53 percent rise in the past decade. About two-thirds of those with a current diagnosis receive prescriptions for stimulants such as Ritalin or Adderall, which can drastically improve the lives of those with ADHD but can also lead to addiction, anxiety and occasionally psychosis.

"Those are astronomical numbers. I'm floored," said Dr. William Graf, a pediatric neurologist in New Haven, Ct., and a professor at the Yale School of Medicine. He added, "Mild symptoms are being diagnosed so readily, which goes well beyond the disorder and beyond the zone of ambiguity to pure enhancement of children who are otherwise healthy."

And even more teenagers are likely to be prescribed medication in the near future because the American Psychological Association plans to change the definition of ADHD to allow more people to receive the diagnosis and treatment.

ADHD is described by most experts as resulting from abnormal chemical levels in the brain that impair a person's impulse control and attention skills.

While some doctors and patient advocates have welcomed rising diagnosis rates as evidence that the disorder is being better recognized and accepted, others said the new rates suggest that millions of children may be taking medication merely to calm behavior or to do better in school. Pills that are shared with or sold to classmates -- diversion long tolerated in college settings and gaining traction in high-achieving high schools -- are particularly dangerous, doctors say, because of their health risks when abused.

The findings were part of a broader CDC study of children's health issues, taken from February 2011 to June 2012. The agency interviewed more than 76,000 parents nationwide by both cellphone and landline and is currently compiling its reports. The New York Times obtained the raw data from the agency and compiled the results.

ADHD has historically been estimated to affect 3 to 7 percent of children. The disorder has no definitive test and is determined only by speaking extensively with patients, parents and teachers, and ruling out other possible causes -- a subjective process that is often skipped under time constraints and pressure from parents. It is considered a chronic condition that is often carried into adulthood.

The CDC director, Dr. Thomas Frieden, likened the rising rates of stimulant prescriptions among children to the overuse of pain medications and antibiotics in adults.


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