For a long time, it was assumed that somewhere between 5 and 6% of children have attention-deficit hyperactivity disorder (ADHD). But the rates, in practice, are often higher. The American Centers for Disease Control and Prevention put the prevalence at 11.4% in children in 2022.
The Swedish Board of Health and Welfare reports that in 2022 10.5% of boys and 6% of girls received an ADHD diagnosis, which is 50% more than in 2019. The board forecasts that the rates will eventually plateau at 15% for boys and 11% for girls.
