Understanding ADHD | About ADHD | Data and Statistics
The National Resource Center

Data and Statistics

There are various sources for statistical information on ADHD.  They include national surveys conducted by the Centers for Disease Control and Prevention (CDC), such as the National Survey of Children’s Health (NSCH) and the National Health Interview Survey (NHIS).  Other governmental and non-governmental organizations such as the World Health Organization also provide reliable statistics.  Prevalence studies conducted by researchers generate much useful data, as do the healthcare industry’s analysis of prescription drug costs and use.  Statistics from several sources are presented here under these categories:


When analyzing the results of prevalence studies, you may want to take into consideration the sample size; the population being surveyedwhether they are clinicians, parents, teachers, children, adults or a combination of these groups; the questions being asked; and the conclusions of the study.



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The information provided on this website was supported by Cooperative Agreement Number NU38DD005376 funded by the Centers for Disease Control and Prevention (CDC). Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the CDC or the Department of Health and Human Services.

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