Just more than one-third (34.8%) had received either treatment.
Researchers, led by Mark Olfson, MD, MPH, Elizabeth K. Dollard Professor of Psychiatry, Medicine and Law and professor of epidemiology at New York State Psychiatric Institute and Columbia University Department of Psychiatry, New York, also found that girls were much less likely to get medications.
Columbia University
Dr. Mark Olfson
In this cross-sectional sample taken from 11, 723 children in the Adolescent Brain and Cognitive Development Study, 1,206 children aged 9 and 10 years had parent-reported ADHD, and of those children, 15.7% of boys and 7% of girls were currently receiving ADHD medications. The parents reported the children met ADHD criteria according to the Diagnostic and Statistical Manual of Mental Disorders.
Findings were published online in JAMA Network Open.
Diagnoses have doubled but treatment numbers lag
Report authors noted that the percentage of U.S. children whose parents report their child has been diagnosed with ADHD has nearly doubled over 2 decades from 5.5% in 1999 to 9.8% in 2018. That has led to misperceptions among professionals and the public that the disorder is overdiagnosed and overtreated, the authors wrote.
However, they wrote, “a focus on the increasing numbers of children treated for ADHD does not give a sense of what fraction of children in the population with ADHD receive treatment.”
Higher uptake at lower income and education levels
Researchers also found that, contrary to popular belief, children with ADHD from families with lower educational levels and lower income were more likely than those with higher educational levels and higher incomes to have received outpatient mental health care.
Among children with ADHD whose parents did not have a high school education, 32.2% of children were receiving medications while among children of parents with a bachelor’s degree 11.5% received medications.
Among children from families with incomes of less than $25 000, 36.5% were receiving outpatient mental health care, compared with 20.1% of those from families with incomes of $75,000 or more.
“These patterns suggest that attitudinal rather than socioeconomic factors often impede the flow of children with ADHD into treatment,” they wrote.
Black children less likely to receive medications
The researchers found that substantially more White children (14.8% [104 of 759]) than Black children (9.4% [22 of 206]), received medication, a finding consistent with previous research.
“Population-based racial and ethnic gradients exist in prescriptions for stimulants and other controlled substances, with the highest rates in majority-White areas,” the authors wrote. “As a result of structural racism, Black parents’ perspectives might further influence ADHD management decisions through mistrust in clinicians and concerns over safety and efficacy of stimulants.”
“Physician efforts to recognize and manage their own implicit biases, together with patient-centered clinical approaches that promote shared decision-making,” might help narrow the treatment gap, the authors wrote. That includes talking with Black parents about their knowledge and beliefs concerning managing ADHD, they added.