ArticleBMJ open2020
Retrospective cross-sectional analysis of the changes in marijuana use in the USA, 2005-2018.
Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
14 citing papers in PubMed, 27 citations in OpenAlex.
- Sex differences in the acute effects of oral THC: a randomized, placebo-controlled, crossover human laboratory study.Psychopharmacology · 2024Trial
- Alcohol and Cannabis Use and Co-Use among Ethnic Groups in California.Journal of immigrant and minority health · 2025Article
- Using prospective mixed methods to investigate the effect of the COVID-19 pandemic on cannabis demand.Journal of the experimental analysis of behavior · 2025Article
- Measuring the Association Between Cannabis Dispensary Density and Adult Consumption in a Statewide Setting: Does Urbanicity Matter?Cannabis (Albuquerque, N.M.) · 2025Article
- Trends in marijuana and heavy alcohol use by cigarette smoking status among US adults: An analysis of the 2002-2019 NSDUH.Drug and alcohol dependence · 2024Article
- Sex Differences in the Acute Effects of Oral THC: A Randomized, Placebo-Controlled, Crossover Human Laboratory Study.medRxiv : the preprint server for health sciences · 2024Article
- Acute Toxicity and Pharmacokinetic Profile of an EU-GMP-CertifiedPharmaceuticals (Basel, Switzerland) · 2023Article
- Association between serumFrontiers in public health · 2023Article
- Current Landscape of Coccidioidomycosis.Journal of fungi (Basel, Switzerland) · 2022Review
- Racial and Ethnic Differences in Cannabis Use and Cannabis Use Disorder: Implications for Researchers.Current addiction reports · 2022Article
- Recent cannabis use and myocardial infarction in young adults: a cross-sectional study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021Article
- Racial/Ethnic Differences in 30-Year Trajectories of Cannabis Use among Males.Substance use & misuse · 2021Article
- Influence of the Interaction Between Depressive Symptoms and Sleep Disorders on Cardiovascular Diseases Occurrence.International journal of general medicine · 2021Article
- Effect of the Interaction between Depression and Sleep Disorders on the Stroke Occurrence: An Analysis Based on National Health and Nutritional Examination Survey.Behavioural neurology · 2021Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesUnderstanding trends of marijuana use in the USA throughout a period of particularly high adoption of marijuana-legalisation, and understanding demographics most at risk of use, is important in evolving healthcare policy and intervention. This study analyses the demographic-specific changes in the prevalence of marijuana use in the USA between 2005 and 2018. DESIGN, SETTING AND
participantsA 14-year retrospective cross-sectional analysis of the National Health and Nutrition Examination Survey database, a publicly available biennially collected national survey, weighted to represent the entire US population. A total of 35 212 adults between 18 and 69 years old participated in the seven-cycles of surveys analysed (2005-2018). PRIMARY OUTCOME MEASURED: Lifetime use, first use before 18 years old, and past-year use of marijuana.
resultsThe majority of adults reported ever using marijuana. While the overall prevalence of lifetime marijuana use remained stable (p=0.53), past-year use increased significantly between 2005 and 2018 (p<0.001) with highest rate of past-year use among younger age groups (p<0.001), males (p<0.001) and those with income below poverty level (p<0.001). Past-year use was the most common among non-Hispanic blacks, and less common among Hispanic/Mexican populations (p<0.002). Trends in past-year use increased among all age categories, males/females, all ethnicities, those with high school education/above, and those at all income levels (p<0.01 for all).
conclusionsWhile lifetime marijuana use remained stable, past-year use significantly increased between 2005 and 2018. While past-year use remained the most common in younger age groups, males, non-Hispanic blacks and those with lower income; increasing trends in past-year use were significant for all age, sex, race and income categories, and for those with high school education/above. With high adoption of marijuana-legalisation laws during this period, our results suggest an associated increase in past-year marijuana use.An accurate understanding of those most at risk can help to inform decisions of healthcare policy-makers and professionals, and facilitate a safe transition of changing marijuana legalisation and use in the USA.
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