Why ADHD Cases In Children Are Rising

A little girl looking out of a window(BlackDoctor.org) — The percentage of children diagnosed with attention deficit hyperactivity disorder (ADHD) has risen from 6.9% to 9% in the past decade, a CDC study shows.

According to the report, published in the National Center for Health Statistics Data Brief for August 2011, the increase may be influenced by racial, ethnic, and economic factors.

ADHD is one of the most common mental health disorders of childhood, but its frequency varies by race and ethnicity, the CDC says. Symptoms of ADHD include inattention, impulsive behavior, and hyperactivity.

Race, Ethnicity, and Income Factors in ADHD Diagnosis

The CDC, analyzing trends in children age 5 to 17, says that between 1998 and 2009:

• ADHD prevalence increased to 10.3% for children with family incomes of less than 100% of the poverty level, up from 7%, and to 10.6% for those with family incomes between 100% and 199% of the poverty level, compared to 7% in the earlier period.