The researchers found that rates of ADHD diagnosis were 2.5% in 2001 and 3.1% in 2010. They also found that the rate increased most among whites, followed by blacks and Hispanics, and that children living in high-income households were at increased risk of diagnosis compared with peers in lower-income households. The increase in ADHD diagnosis among blacks was largely driven by an increase in diagnoses among girls.
“The findings of this study suggest increasing trends in the clinical diagnosis of ADHD among children in the health plan,” the researchers said. “We also observed disproportionately high ADHD diagnosis rates among white children and notable increases in rates among black girls over time.”
The study can be accessed here. For more information about trends in ADHD diagnosis, see Psychiatric News here. Also see the new issue of Psychiatric Services in Advance for a study of trends in medication treatment of ADHD.