Viewing More Medical Marijuana Ads Linked To Higher Pot Use Among Adolescents

The findings -- from a study that tracked adolescents' viewing of medical marijuana ads over seven years -- provides the best evidence to date that an increasing amount of advertising about marijuana may prompt young people to increase their use of the drug. The study was published by the journal Drug and Alcohol Dependence.

"This work highlights the importance of considering regulations for marijuana advertising that would be similar to rules already in place to curb the promotion of tobacco and alcohol across the United States," said Elizabeth D'Amico, the study's lead author and a senior behavioral scientist at RAND, a nonprofit research organization.

Researchers say the issue is of increasing importance because 29 states and Washington D.C. have approved sales of medical marijuana, and nine states and Washington D.C. also have approved recreational sales of the drug. Both actions are likely to lead to more marijuana advertising that will be visible to adolescents, even if they are not the target of the ads.

The RAND study followed 6,509 adolescents from 2010 until 2017 who were originally recruited from 16 middle schools in three school school districts in Southern California, and went on to more than 200 high schools in the region. Participants were periodically surveyed to assess their exposure to medical marijuana advertising, and asked about marijuana use and related topics.

The participants were ethnically diverse. and rates of marijuana use at the outset of the study were similar to national samples of adolescents.

The proportion of adolescents who reported viewing medical marijuana advertising increased sharply over the course of the study. In 2010, 25 percent of the participants reported seeing at least one medical marijuana advertisement during the previous three months -- the exposure rate grew to 70 percent by 2017.

Adolescents who reported greater exposure to medical marijuana advertising were more likely to report having used marijuana over the previous 30 days, and were more likely to report that they expected to use marijuana during the next six months. Viewing more medical marijuana advertising also was associated with having more-positive views about the drug, such as agreeing that marijuana relaxes a person and helps a person get away from their problems.

Youth who were exposed to more medical marijuana advertising also were more likely to report negative consequences because of marijuana. This included missing school, having trouble concentrating on tasks, doing something they felt sorry for later or having gotten into trouble at school or home.

"Our findings suggest that increased exposure to medical marijuana advertising is associated with increased marijuana use and related negative consequences throughout adolescence," D'Amico said. "Thus, it is possible that teens who were exposed to the most medical marijuana advertising were more likely to use marijuana heavily and therefore experience more negative consequences."

Researchers say that future research should look more closely at the impact of different sources of marijuana advertising, such as billboards, magazine ads or signage at retail outlets.

"As more states legalize marijuana for medical or recreational uses, we must think carefully about the best ways to regulate marijuana advertising so that we can decrease the chances of harm occurring, particularly for adolescents," D'Amico said. "We must also continue to address beliefs about the effects of marijuana as part of our prevention and intervention efforts with this age group."

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Viewing More Medical Marijuana Ads Linked To Higher Pot Use Among Adolescents

Source:Science Daily

Viewing More Medical Marijuana Ads Linked To Higher Pot Use Among Adolescents

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Viewing More Medical Marijuana Ads Linked To Higher Pot Use Among Adolescents

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Viewing More Medical Marijuana Ads Linked To Higher Pot Use Among Adolescents