News Release 

Is parents' use of marijuana associated with greater likelihood of kids' substance use?

JAMA Network Open

Bottom Line: Recent and past use of marijuana by parents was associated with increased risk of marijuana, tobacco and alcohol use by adolescent or young adult children living in the same household in this survey study. Researchers examined data for 24,900 parent-child pairs from National Surveys on Drug Use and Health from 2015-2018. Parental marijuana use was a risk factor for marijuana and tobacco use by adolescent and young adult children and for alcohol use by adolescent children when researchers accounted for a variety of potential family and environmental factors. When those factors were considered, parental marijuana use wasn't associated with opioid misuse by their children. The study has limitations, including that the surveys cannot provide a complete picture of family substance use.

To access the embargoed study: Visit our For The Media website at this link

Authors: Bertha K. Madras, Ph.D., Harvard Medical School, Boston, and McLean Hospital, Belmont, Massachusetts, and coauthors


Editor's Note: The article contains conflict of interest and funding/support disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.


Media advisory: To contact corresponding author Bertha K. Madras, Ph.D., email Laura Neves at The full study and commentary are linked to this news release.

Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time

About JAMA Network Open: JAMA Network Open is the new online-only open access general medical journal from the JAMA Network. Every Wednesday and Friday, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication.

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.