Marijuana use higher in young adult smokers than previously reported

April 18, 2012

Half of young adult tobacco smokers also have smoked marijuana in the last 30 days, according to a recent Facebook-based survey conducted by UCSF researchers, indicating a greater prevalence of marijuana and tobacco co-use among smokers age 18-25 than previously reported.

Other recent studies have shown that approximately 35 percent of young adult smokers used within the last month.

"We were curious whether rates would be different in our study where we reached out through social media and the Web," said lead author Danielle Ramo, PhD, a post-doctoral scholar in the UCSF Department of Psychiatry. "And rates were much higher, which shows the problem might be larger than we realize."

Survey participants were recruited solely online, a departure from traditional surveys that rely on face to-face interviews, phone interviews or completing questionnaires. The UCSF researchers primarily used through a series of paid advertisements, in addition to Craigslist and a survey sampling company to reach out to . The results, the researchers said, indicate young adults might be more inclined to answer honestly via anonymous online sampling.

The research will be published in Addiction Science and Clinical Practice on April 18.

The first phase of the survey was used to identify patterns only. A second stage asked participants to answer the tobacco and marijuana use survey, which employed data encryption to ensure anonymity and prevent multiple entries. Of the 3,500 individuals who completed the marijuana and tobacco co-use survey, usage was highest amongst Caucasians, people from the Northeast, people in rural areas and among the non-student population. Of the 68 percent who were daily smokers, 53 percent had used marijuana in the last month.

"Residence in a state was unrelated to the prevalence of marijuana use as well as the co-use of marijuana and tobacco in this young adult sample," reported Judith Prochaska, PhD, MPH, associate professor of psychiatry at UCSF and the study's senior author. "The prevalence of marijuana use also did not differ by respondents' age, income or gender."

The research shows that smoking cessation programs aimed at this age group should take into account the effect of marijuana use in their programs, according to Ramo. The next phase of the research is to adapt behavioral and cognitive principles for smoking cessation, like counseling, to Facebook.

"Adapting the social media aspect into intervention and incorporating the social environment are new ways to approach finding the most effective means for treatment," she said.

Ramo and Prochaska plan to use such as Facebook, in which participants will be able to contact not only the clinicians for support, but also other smokers within the online community. Motivational Facebook messages and formal moderated groups online also will be integrated into treatment.

"This format allows them to remain anonymous as much as they want, but have ease to access interventions when they are at the age when they are less likely to enter a treatment center, research lab or clinic," Ramo said.

Explore further: Aboriginal youth use tobacco, illicit drugs and alcohol more than non-aboriginal youth

More information: Prevalence and co-use of marijuana among young adult cigarette smokers: An anonymous online national survey, Danielle E Ramo and Judith J Prochaska, Addiction Science & Clinical Practice (in press)

Related Stories

Aboriginal youth use tobacco, illicit drugs and alcohol more than non-aboriginal youth

May 9, 2011
Aboriginal-youth living off-reserve in Canada use tobacco, alcohol and drugs significantly more than non-Aboriginal youth and have higher health risks, according to an article in CMAJ (Canadian Medical Association Journal).

Occasional marijuana use doesn't harm lungs, study finds

January 12, 2012
Smoking marijuana on an occasional basis does not appear to significantly damage the lungs, according to a new study.

Recommended for you

Trying to get sober? NIH offers tool to help find good care

October 3, 2017
The phone calls come—from fellow scientists and desperate strangers—with a single question for the alcohol chief at the National Institutes of Health: Where can my loved one find good care to get sober?

Medical students need training to prescribe medical marijuana

September 15, 2017
Although 29 states and the District of Columbia allow marijuana use for medical purposes, few medical students are being trained how to prescribe the drug. Researchers at Washington University School of Medicine in St. Louis ...

Protein links alcohol abuse and changes in brain's reward center

September 8, 2017
When given access to alcohol, over time mice develop a pattern similar to what we would call "problem drinking" in people, but the brain mechanisms that drive this shift have been unclear. Now a team of UC San Francisco researchers ...

11 minutes of mindfulness training helps drinkers cut back

August 24, 2017
Brief training in mindfulness strategies could help heavy drinkers start to cut back on alcohol consumption, finds a new UCL study.

Marijuana use amongst youth stable, but substance abuse admissions up

August 15, 2017
While marijuana use amongst youth remains stable, youth admission to substance abuse treatment facilities has increased, according to new research from Binghamton University, State University of New York.

Report reveals underground US haven for heroin, drug users

August 8, 2017
A safe haven where drug users inject themselves with heroin and other drugs has been quietly operating in the United States for the past three years, a report reveals.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.