In a national 2016 survey conducted by the U.S. Center for Disease Control (CDC), an estimated 6.1 million children in the United States have been diagnosed with ADHD:
- 388,000 children aged 2–5 years
- 4 million children aged 6–11 years
- 3 million children aged 12–17 years
- Boys are more likely to be diagnosed with ADHD than girls (12.9% compared to 5.6%).