Associations Between Tobacco and Cannabis Use and Anxiety and Depression Among Adults in the United States: Findings from the COVID-19 Citizen Science Study
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Background: Little is known about whether people who use both tobacco and cannabis (co-use) are more or less likely to have mental health disorders than single substance users or non-users. We aimed to examine associations between use of tobacco and/or cannabis with anxiety and depression.
Methods: We analyzed data from the COVID-19 Citizen Science Study, a digital cohort study, collected via online surveys during 2020-2022 from a convenience sample of 53,843 US adults (≥ 18 years old) nationwide. Past 30-day use of tobacco and cannabis was self-reported at baseline and categorized into four exclusive patterns: tobacco-only use, cannabis-only use, co-use of both substances, and non-use. Anxiety and depression were repeatedly measured in monthly surveys. To account for multiple assessments of mental health outcomes within a participant, we used Generalized Estimating Equations to examine associations between the patterns of tobacco and cannabis use with each outcome.
Results: In the total sample (mean age 51.0 years old, 67.9% female), 4.9% reported tobacco-only use, 6.9% cannabis-only use, 1.6% co-use, and 86.6% non-use. Proportions of reporting anxiety and depression were highest for the co-use group (26.5% and 28.3%, respectively) and lowest for the non-use group (10.6% and 11.2%, respectively). Compared to non-use, the adjusted odds of mental health disorders were highest for co-use (Anxiety: OR = 1.89, 95%CI = 1.64-2.18; Depression: OR = 1.77, 95%CI = 1.46-2.16), followed by cannabis-only use, and tobacco-only use. Compared to tobacco-only use, co-use (OR = 1.35, 95%CI = 1.08-1.69) and cannabis-only use (OR = 1.17, 95%CI = 1.00-1.37) were associated with higher adjusted odds for anxiety, but not for depression. Daily use (vs. non-daily use) of cigarettes, e-cigarettes, and cannabis were associated with higher adjusted odds for anxiety and depression.
Conclusions: Use of tobacco and/or cannabis, particularly co-use of both substances, were associated with poor mental health. Integrating mental health support with tobacco and cannabis cessation may address this co-morbidity.
Nguyen N, Keyhani S, Marcus G, Do V, Halliday D, Herbst E Drug Alcohol Depend. 2024; 266:112517.
PMID: 39644839 PMC: 11685029. DOI: 10.1016/j.drugalcdep.2024.112517.
Low G, AliSher A, Morero J, Gao Z, Gutman G, Franca A Healthcare (Basel). 2024; 12(18).
PMID: 39337177 PMC: 11431020. DOI: 10.3390/healthcare12181837.
Trends in cannabis and tobacco co-use in the United States, 2002-2021.
Rubenstein D, McClernon F, Pacek L Addict Behav. 2024; 158:108129.
PMID: 39154418 PMC: 11471026. DOI: 10.1016/j.addbeh.2024.108129.
Tobacco-cannabis co-use among cancer patients and survivors: findings from 2 US cancer centers.
Smith D, Kaye J, Walters K, Schlienz N, Hyland A, Ashare R J Natl Cancer Inst Monogr. 2024; 2024(66):234-243.
PMID: 39108242 PMC: 11303862. DOI: 10.1093/jncimonographs/lgad035.
Nguyen N, Bold K, McClure E Addict Behav. 2024; 158:108118.
PMID: 39089194 PMC: 11365784. DOI: 10.1016/j.addbeh.2024.108118.