Frequent marijuana use reduced the odds of attempting to quit cigarettes, especially in boys

Adolescent smokers who used marijuana frequently were 44% less likely to have attempted quitting cigarettes, with the effect stronger in boys than girls.

Camenga, Deepa R et al.·Substance abuse·2014·Moderate EvidenceCross-Sectional
RTHC-00779Cross SectionalModerate Evidence2014RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Cross-Sectional
Evidence
Moderate Evidence
Sample
N=804

What This Study Found

Among 804 adolescent cigarette smokers, researchers examined whether marijuana and alcohol use frequency predicted having ever attempted to quit smoking. Higher-frequency marijuana use (more than 6 times in the past 30 days) was associated with 44% lower odds of having made a cigarette quit attempt.

A significant gender interaction emerged: the association was driven primarily by boys (59% lower odds, AOR = 0.41) rather than girls (29% lower odds, not statistically significant, AOR = 0.71). Frequent binge drinking (more than 5 days in the past month) was also associated with 51% lower odds of a quit attempt.

The findings suggest that adolescents with heavier substance use patterns may face additional barriers to initiating smoking cessation.

Key Numbers

804 adolescent smokers. Higher-frequency marijuana use: AOR = 0.56 (95% CI: 0.36-0.86). Boys specifically: AOR = 0.41 (95% CI: 0.22-0.77). Frequent binge drinking: AOR = 0.49 (95% CI: 0.29-0.83). Gender interaction P = .03.

How They Did This

Cross-sectional analysis of survey data from high-school-aged adolescents. Current cigarette smokers (n=804) were classified by quit attempt history. Logistic regression models examined associations between marijuana/alcohol use frequency and history of cigarette quit attempts, testing for gender interactions.

Why This Research Matters

Adolescent smoking cessation is a public health priority. If frequent marijuana use reduces the likelihood of even attempting to quit cigarettes, it identifies a subgroup that may need additional support. The gender difference suggests that intervention approaches may need to be tailored.

The Bigger Picture

The intersection of marijuana use and tobacco cessation is clinically important because the two substances are often co-used. If marijuana use reduces motivation to quit tobacco, addressing both substances simultaneously may be necessary for effective cessation programs targeting adolescents.

What This Study Doesn't Tell Us

Cross-sectional design cannot establish causation. Self-reported quit attempts may not accurately reflect actual cessation behavior. The study defined quit attempts broadly ("ever tried to stop smoking"). Higher-frequency substance users may simply have less interest in health behavior changes overall.

Questions This Raises

  • ?Does marijuana use causally reduce quit motivation, or does it simply co-occur with lower health motivation?
  • ?Would addressing marijuana use first improve cigarette cessation rates?
  • ?Why was the association stronger in boys?

Trust & Context

Key Stat:
44% lower odds of a quit attempt in frequent marijuana users; 59% lower in boys
Evidence Grade:
Adequately powered cross-sectional study with gender interaction analysis, though unable to establish causation.
Study Age:
Published in 2014.
Original Title:
Marijuana and alcohol use and attempted smoking cessation in adolescent boys and girls.
Published In:
Substance abuse, 35(4), 381-6 (2014)
Database ID:
RTHC-00779

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / ObservationalSnapshot without intervening
This study
Case Report / Animal Study

A snapshot of a population at one point in time.

What do these levels mean? →

Frequently Asked Questions

Does marijuana use make it harder to quit cigarettes?

This study found that adolescent smokers who used marijuana frequently were significantly less likely to have even attempted quitting cigarettes. The effect was strongest in boys (59% lower odds of a quit attempt).

Why might marijuana use reduce quit attempts?

The study did not determine the mechanism, but possibilities include shared reinforcement pathways, lower overall health motivation among polysubstance users, or the common practice of mixing tobacco and cannabis that makes quitting one substance harder without quitting both.

Read More on RethinkTHC

Cite This Study

RTHC-00779·https://rethinkthc.com/research/RTHC-00779

APA

Camenga, Deepa R; Kong, Grace; Bagot, Kara; Hoff, Rani A; Potenza, Marc N; Krishnan-Sarin, Suchitra. (2014). Marijuana and alcohol use and attempted smoking cessation in adolescent boys and girls.. Substance abuse, 35(4), 381-6. https://doi.org/10.1080/08897077.2014.958207

MLA

Camenga, Deepa R, et al. "Marijuana and alcohol use and attempted smoking cessation in adolescent boys and girls.." Substance abuse, 2014. https://doi.org/10.1080/08897077.2014.958207

RethinkTHC

RethinkTHC Research Database. "Marijuana and alcohol use and attempted smoking cessation in..." RTHC-00779. Retrieved from https://rethinkthc.com/research/camenga-2014-marijuana-and-alcohol-use

Access the Original Study

Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.

This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.