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Marijuana Use Gender Gap Widens, Mainly Among Low-Income Americans

Summary: A new study reports an increase in marijuana use for men and women between 2002 and 2014, with a greater increase in men using the drug.

Source: Columbia University.

Six percent increase in pot use among men earning less than $20,000 corresponds to rising unemployment rate during Great Recession.

A new study of changes in marijuana use over time in the U.S. found that the prevalence of past-year marijuana use increased for both men and women between 2002 and 2014. Throughout this period, more men reported past-year use than women, but since 2007, the rate of increase was greater for men than for women, leading to a widening of the gender gap in marijuana use over time. An estimated 6 million additional men and 4 million additional women used marijuana in 2014 compared to 2002.

Results of the study conducted at Columbia University’s Mailman School of Public Health are published online in the journal Drug and Alcohol Dependence.

Epidemiologists Hannah Carliner and Deborah S. Hasin used national survey data to reveal that recent trends run counter to past trends in both marijuana and alcohol use, and a narrowing gender gap over time. After years of relatively stable rates of use at around 13 percent of the adult male population and 7 percent of the adult female population, a new trend emerged in 2007, after which prevalence increased by about 4 percent among men and 3 percent among women.

“These changes parallel national trends in decreased perceived harmfulness of marijuana use, and legalization of both recreational and medical use in over half of U.S. states,” said Dr. Carliner. “However, changes in attitudes and legality do not sufficiently explain why we observe a sharp increase in use in 2007, or why this increase was greater in men than in women.”

Income and economics provided further clarity. The researchers found that the widening gender gap in marijuana use was driven solely by households earning less than $50,000 per year. Between 2007 and 2014, prevalence of marijuana use increased about 6 percent among men in households earning less than $20,000 annually, compared to only 2 percent of women in that group. These changes correspond to the beginning of the Great Recession and rising unemployment rate in 2007.

The authors speculate that coping with the stress of economic hardship and insecurity may contribute to the increase in marijuana use among men in the hardest hit segment of the population. “While an economic recovery began around 2012, it largely bypassed men in the low-income manufacturing and construction fields, where earning and employment rates remained low,” noted Dr. Carliner.

Image shows a marijuana plant.

Hardship and insecurity may contribute to the increase in marijuana use among men in the hardest hit segment of the population. NeuroscienceNews.com image is for illustrative purposes only.

“Our findings are consistent with other recent national studies documenting increasing rates of disease and death related to substance use among middle-aged low socioeconomic status White Americans,” says Dr. Hasin. “While the current study focuses on national trends rather than individual changes in substance use, the consistency with prior quantitative and qualitative studies indicates that more research is warranted in this area.”

“Documenting changes in drug use affecting millions of people related to macroeconomic trends is important for public health planning as well as economic policy,” added Dr. Carliner. “Identifying such high risk periods and populations could help target future prevention and harm reduction efforts.”

About this epidemiology research article

Other co-authors are P.M. Mauro, Q.L. Brown, D. Shmulewitz, and S. S. Martins of the Mailman School of Public Health; R. Rahim, A.L. Sarvet, and M.M. Wall of New York State Psychiatric Institute.

Funding: Funding for the study was provided by the National Institutes of Health, grants T32DA031099, R01DA037866, and R01DA034244.

NeuroscienceNews would like to thank Stephanie Berger for submitting this research news to us for inclusion.

Source: Stephanie Berger – Columbia University
Image Source: NeuroscienceNews.com image is for illustrative purposes only.
Original Research: Abstract for “The widening gender gap in marijuana use prevalence in the U.S. during a period of economic change, 2002–2014” by Hannah Carliner, Pia M. Mauro, Qiana L. Brown, Dvora Shmulewitz, Reanne Rahim-Juwel, Aaron L. Sarvet, Melanie M. Wall, Silvia S. Martins, Geoffrey Carliner, and Deborah S. Hasin in Drug and Alcohol Depedence Published online November 10 2016 doi:10.1016/j.drugalcdep.2016.10.042

Cite This NeuroscienceNews.com Article
Columbia University “Marijuana Use Gender Gap Widens, Mainly Among Low-Income Americans.” NeuroscienceNews. NeuroscienceNews, 29 November 2016.
<http://neurosciencenews.com/gender-income-marijuana-5626/>.
Columbia University (2016, November 29). Marijuana Use Gender Gap Widens, Mainly Among Low-Income Americans. NeuroscienceNew. Retrieved November 29, 2016 from http://neurosciencenews.com/gender-income-marijuana-5626/
Columbia University “Marijuana Use Gender Gap Widens, Mainly Among Low-Income Americans.” http://neurosciencenews.com/gender-income-marijuana-5626/ (accessed November 29, 2016).

Abstract

The widening gender gap in marijuana use prevalence in the U.S. during a period of economic change, 2002–2014

Aim
Concurrently with increasingly permissive attitudes towards marijuana use and its legalization, the prevalence of marijuana use has increased in recent years in the U.S. Substance use is generally more prevalent in men than women, although for alcohol, the gender gap is narrowing. However, information is lacking on whether time trends in marijuana use differ by gender, or whether socioeconomic status in the context of the Great Recession may affect these changes.

Methods
Using repeated cross-sectional data from the National Survey on Drug Use and Health (2002–2014), we examined changes over time in prevalence of past-year marijuana use by gender, and whether gender differences varied across income levels. After empirically determining a change point in use in 2007, we used logistic regression to test interaction terms including time, gender, and income level.

Results
Prevalence of marijuana use increased for both men (+4.0%) and women (+2.7%) from 2002 to 2014, with all of the increase occurring from 2007 to 2014. Increases were greater for men, leading to a widening of the gender gap over time (p < 0.001). This divergence occurred primarily due to increased prevalence among men in the lowest income level (+6.2%) from 2007 to 2014.


Conclusion

Our findings are consistent with other studies documenting increased substance use during times of economic insecurity, especially among men. Corresponding with the Great Recession and lower employment rate beginning in 2007, low-income men showed the greatest increases in marijuana use during this period, leading to a widening of the gender gap in prevalence of marijuana use over time.

“The widening gender gap in marijuana use prevalence in the U.S. during a period of economic change, 2002–2014” by Hannah Carliner, Pia M. Mauro, Qiana L. Brown, Dvora Shmulewitz, Reanne Rahim-Juwel, Aaron L. Sarvet, Melanie M. Wall, Silvia S. Martins, Geoffrey Carliner, and Deborah S. Hasin in Drug and Alcohol Depedence Published online November 10 2016 doi:10.1016/j.drugalcdep.2016.10.042

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