WEDNESDAY, Jan. 30 (HealthDay News) -- Many parents pursue costly and time-consuming treatments to help their children with attention-deficit/hyperactivity disorder. Now, a new study finds little evidence that non-drug interventions reduce key symptoms of ADHD.
A multinational team of experts identified no positive effects from psychological treatments including mind exercises (cognitive training), neurofeedback and behavioral training (positive reinforcement). And the researchers discovered only small benefits associated with dietary treatments: supplementation with omega-3 and omega-6 free fatty acids, and elimination of artificial food coloring.
Still, parents shouldn't be discouraged, said study co-author Dr. Emily Simonoff.
"I think our findings allow a much more informed discussion than did previous work because we've been able to demonstrate that what we once thought worked is more limited and more questionable," said Simonoff, a professor of child and adolescent psychiatry at King's College London.
Simonoff thinks the study conclusions need to be interpreted in the context of a child's particular situation.
"I think people need to talk with their child's clinician," she said. "Evidence is never a substitute for having a discussion about your own child and what is right for your child and your family."
ADHD diagnoses are on the rise. Between 1997 and 2007, diagnoses among U.S. children and teens increased between 3 percent and 6 percent a year, according to the U.S. Centers for Disease Control and Prevention. According to the American Psychiatric Association, between 3 percent and 7 percent of U.S. children have the condition, which makes it hard to focus in school and to sustain friendships. Currently, a combination of medication and behavior therapy is the recommended treatment, according to the CDC.
The new review, an analysis of 54 studies by the European ADHD Guidelines Group, compared "blinded" and "unblinded" ratings for several dietary and psychological treatments. "Blinded" raters are unaware of the treatment used, while "unblinded" judges know of the therapy. It is thought that blinded ratings eliminate bias.
The study, published online Jan. 30 in the American Journal of Psychiatry, found that treatments were rated more effective in the unblinded tests, which appears to invalidate the conclusions.