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Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis
OBJECTIVE: Cannabis is reported to be the most common illicit substance used among medical students; however, the number of related studies is limited and their results are not systematically reviewed. The aim of our study was to analyze the prevalence of lifetime and current use of cannabis among m...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6194916/ https://www.ncbi.nlm.nih.gov/pubmed/30349282 http://dx.doi.org/10.1177/1178221818805977 |
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author | Papazisis, Georgios Siafis, Spyridon Tsakiridis, Ioannis Koulas, Ioannis Dagklis, Themistoklis Kouvelas, Dimitrios |
author_facet | Papazisis, Georgios Siafis, Spyridon Tsakiridis, Ioannis Koulas, Ioannis Dagklis, Themistoklis Kouvelas, Dimitrios |
author_sort | Papazisis, Georgios |
collection | PubMed |
description | OBJECTIVE: Cannabis is reported to be the most common illicit substance used among medical students; however, the number of related studies is limited and their results are not systematically reviewed. The aim of our study was to analyze the prevalence of lifetime and current use of cannabis among medical students worldwide. METHODS: A systematic review and meta-analysis was performed with adherence to the PRISMA guidelines. The electronic databases PubMed, Scopus, and Cochrane library were searched for studies on the prevalence of cannabis use among medical students. Prevalence of lifetime, past-year, and past-month cannabis use was extracted. Pooled prevalence and relative risk for sex were calculated using the random effects model and subgroup analyses were conducted. RESULTS: A total of 38 observational (cross-sectional and cohort) studies were included (total number of participants 19 932), and most of them were conducted in Europe, Central and Southern America, and the United States. Overall pooled prevalence of lifetime cannabis use was 31.4% (95% confidence interval [CI]: 23.7%-39.6%), past-year use was 17.2% (95% CI: 10.8%-24.6%), and past-month use was 8.8% (95% CI: 5.6%-12.5%). Men displayed higher rates of cannabis use with a pooled relative risk of 1.55 (95% CI: 1.32-1.81). Heterogeneity was high (I(2) > 75%) and there were differences among continents in all outcomes (P < .001). CONCLUSIONS: In conclusion, 1 in 3 medical students has used cannabis, whereas 8.8% were current users. Significant differences among continents were observed, but common finding was that male students tend to consume cannabis more often than female students. |
format | Online Article Text |
id | pubmed-6194916 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-61949162018-10-22 Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis Papazisis, Georgios Siafis, Spyridon Tsakiridis, Ioannis Koulas, Ioannis Dagklis, Themistoklis Kouvelas, Dimitrios Subst Abuse Review OBJECTIVE: Cannabis is reported to be the most common illicit substance used among medical students; however, the number of related studies is limited and their results are not systematically reviewed. The aim of our study was to analyze the prevalence of lifetime and current use of cannabis among medical students worldwide. METHODS: A systematic review and meta-analysis was performed with adherence to the PRISMA guidelines. The electronic databases PubMed, Scopus, and Cochrane library were searched for studies on the prevalence of cannabis use among medical students. Prevalence of lifetime, past-year, and past-month cannabis use was extracted. Pooled prevalence and relative risk for sex were calculated using the random effects model and subgroup analyses were conducted. RESULTS: A total of 38 observational (cross-sectional and cohort) studies were included (total number of participants 19 932), and most of them were conducted in Europe, Central and Southern America, and the United States. Overall pooled prevalence of lifetime cannabis use was 31.4% (95% confidence interval [CI]: 23.7%-39.6%), past-year use was 17.2% (95% CI: 10.8%-24.6%), and past-month use was 8.8% (95% CI: 5.6%-12.5%). Men displayed higher rates of cannabis use with a pooled relative risk of 1.55 (95% CI: 1.32-1.81). Heterogeneity was high (I(2) > 75%) and there were differences among continents in all outcomes (P < .001). CONCLUSIONS: In conclusion, 1 in 3 medical students has used cannabis, whereas 8.8% were current users. Significant differences among continents were observed, but common finding was that male students tend to consume cannabis more often than female students. SAGE Publications 2018-10-14 /pmc/articles/PMC6194916/ /pubmed/30349282 http://dx.doi.org/10.1177/1178221818805977 Text en © The Author(s) 2018 http://www.creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Review Papazisis, Georgios Siafis, Spyridon Tsakiridis, Ioannis Koulas, Ioannis Dagklis, Themistoklis Kouvelas, Dimitrios Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis |
title | Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis |
title_full | Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis |
title_fullStr | Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis |
title_full_unstemmed | Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis |
title_short | Prevalence of Cannabis Use Among Medical Students: A Systematic Review and Meta-analysis |
title_sort | prevalence of cannabis use among medical students: a systematic review and meta-analysis |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6194916/ https://www.ncbi.nlm.nih.gov/pubmed/30349282 http://dx.doi.org/10.1177/1178221818805977 |
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