Half of adults aged 20-39 with attention deficit hyperactivity disorder (ADHD) have had a substance use disorder (SUD) in their lifetime according to new research. This is markedly higher than the 23.6% of young adults without ADHD who have had a substance use disorder in their lifetime.
Even after considering factors such as age, race, income, education, childhood adversities and other mental illness, young adults with ADHD were still 69% more likely to have had a substance use disorder when compared to their peers without ADHD.
More than one-quarter (27%) of those with ADHD had a history of depression, which was much higher than the prevalence among those without ADHD (11%).
“These results emphasize the importance of addressing depression and anxiety when providing care to those with co-occurring ADHD and SUD,” reported lead author Esme Fuller-Thomson, Professor at University of Toronto’s Factor-Inwentash Faculty of Social Work and Director of the Institute for Life Course and Aging. “Individuals with untreated depression and anxiety may self-medicate to manage the symptoms of an untreated psychiatric disorder, which can result in greater substance use.”
Those with ADHD also experienced high levels of adverse childhood experiences, with more than a third of young adults (35%) reporting that they had been physically abused and one in nine reporting that they were a victim of sexual abuse (11%) before the age of 16.
A strong association between childhood adversities and substance use disorder has been found in previous research as well.
Alcohol use disorders were the most common substance abuse disorders among young adults with ADHD (36%), followed by cannabis use disorders (23%). Young adults with ADHD were also three times more likely to experience an illicit drug disorder (other than cannabis) when compared to their peers without ADHD (18% vs 5%).
The data were drawn from the Canadian Community Health Survey-Mental Health, a nationally representative sample of 270 respondents aged 20-39 with ADHD and 6,602 without ADHD.
The findings of our study underline the extreme vulnerability of young adults with ADHD. “There is a clear need to develop prevention and treatment programs to address substance use issues among those with ADHD, while also promoting mental health and addressing childhood adversities,” said Fuller-Thomson.
The study is published in the August issue of Alcohol and Alcoholism.
Excerpted from “Half of adults with ADHD have had a substance use disorder” from EurekAlert. Read the full news release for additional details.
Source: EurekAlert | Half of adults with ADHD have had a substance use disorder, https://www.eurekalert.org/news-releases/924775 | Copyright © 2021 by the American Association for the Advancement of Science (AAAS)
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