E-cigarette, cannabis, hookah and tobacco use patterns in fee-paying South African high schools

Authors

  • S Filby Research Unit on the Economics of Excisable Products, School of Economics, University of Cape Town, South Africa https://orcid.org/0000-0001-6371-6522
  • R van Zyl-Smit Division of Pulmonology and UCT Lung Institute, Department of Medicine, Faculty of Health Sciences, University of Cape Town and Groote Schuur Hospital, South Africa https://orcid.org/0000-0002-4115-5362
  • G Soin Division of Pulmonology and UCT Lung Institute, Department of Medicine, Faculty of Health Sciences, University of Cape Town and Groote Schuur Hospital, South Africa
  • S Kurten Department of Interdisciplinary Social Science, Utrecht University, Netherlands

DOI:

https://doi.org/10.7196/SAMJ.2026.v116i1.3847

Keywords:

youth and adolescents, Electronic cigarettes, cannabis, tobacco, Public health

Abstract

Background. Monitoring adolescent substance use is crucial for informing public health strategies. However, in South Africa (SA), recent large-sample data on the use and co-use of tobacco, nicotine and cannabis among youth remain scarce.

Objectives. To describe the use and co-use of cannabis, hookah, tobacco cigarettes and electronic cigarettes (e-cigarettes/vapes) among SA high-school learners, and to examine how these patterns vary by school-based characteristics, including grade, school fee category and school gender composition.

Methods. A cross-sectional survey was administered to 25 149 learners in grades 8 - 12 from 52 fee-paying high schools across eight provinces. Learners reported their past-30-day use of cannabis, hookah, tobacco cigarettes and e-cigarettes/vapes. Key outcomes included current use of each individual product, any one of the four products, as well as dual-usage patterns. Multilevel logistic regressions examined associations between school grade, fee category (lower-, mid-, or high-fee), gender composition (co-educational, all boys, all girls) and the odds of single, any and dual product use.

Results. Among sampled learners, 19.39% (95% confidence interval (CI) 18.91 - 19.88) reported current use of any product. Vape use was most prevalent (16.83%, 95% CI 16.37 - 17.30), followed by cannabis (5.13%, 95% CI 4.86 - 5.41), hookah (3.16%, 95% CI 2.95 - 3.39) and tobacco cigarettes (2.08%, 95% CI 1.91 - 2.27). Dual use was especially common among vape users, with more than one-third (34.31%, 95% CI 32.88 - 35.77) reporting concurrent use of at least one other product: 22.06% (95% CI 20.83 - 23.35) cannabis, 13.50% (95% CI 12.50 - 14.58) hookah and 10.13% (95% CI 9.25 - 11.08) tobacco cigarettes. Usage rates were highest among learners in Grade 12, in co-educational schools and in lower-fee schools. Multivariable regression analyses showed that advanced grade level was significantly associated with increased odds of current use across all product types. Compared with learners in all-boys schools, those in co-educational schools had significantly higher odds of cannabis use (odds ratio (OR) 1.53, p<0.05) and dual use (OR 1.42, p<0.1), while learners in all-girls schools had significantly lower odds of any product use (OR 0.75, p<0.05) and of vape use (OR 0.73, p<0.05). Regression results further revealed significantly elevated odds of hookah use and dual use among learners attending lower- and middle-fee schools compared with learners in high-fee schools.

Conclusion. The widespread use of e-cigarettes, along with dual use among e-cigarette users, in fee-paying high schools signals a significant public health concern, underscoring the need for comprehensive interventions. Elevated hookah and dual use in lower-fee schools, along with increased cannabis and dual use in co-educational settings, underscore the need for targeted interventions to address context-specific vulnerabilities among SA adolescents.

References

1. Goriounova NA, Mansvelder HD. Short- and long-term consequences of nicotine exposure during adolescence for prefrontal cortex neuronal network function. Cold Spring Harb Perspect Med 2012;2(12):a012120. https://doi.org/10.1101/cshperspect.a012120

2. Steinfeld MR, Torregrossa MM. Consequences of adolescent drug use. Transl Psychiatry 2023;13(1):313. https://doi.org/10.1038/s41398-023-02590-4

3. Gray KM, Squeglia LM. Research review: What have we learned about adolescent substance use? J Child Psychol Psychiatry 2018;59(6):618-627. https://doi.org/10.1111/jcpp.12783

4. Laursen B, Veenstra R. Toward understanding the functions of peer influence: A summary and synthesis of recent empirical research. J Res Adolesc 2021;31(4):889-907. https://doi.org/10.1111/ jora.12606

5. World Health Organization, US Centers for Disease Control. Global Youth Tobacco Survey: South Africa, 2011. Geneva: WHO, 2011. https://extranet.who.int/ncdsmicrodata/index.php/catalog/175 (accessed 9 June 2025).

6. Van Zyl-Smit RN, Filby S, Soin G, et al. Electronic cigarette usage amongst high school students in South Africa: A mixed methods approach. eClinicalMedicine 2024;78:102432. https://doi. org/10.1016/j.eclinm.2024.102432

7. National Department of Health, South Africa, Statistics South Africa, South African Medical Research Council, ICF. South Africa Demographic and Health Survey 2016. Pretoria: NDoH, 2019.

8. Mohale D, Mokwena KE. Substance use amongst high school learners in the south of Johannesburg: Is this the new norm? S Afr Fam Pract 2020;62(1):e1-e6. https://doi.org/10.4102/safp.v62i1.5122

9. Naicker N, Teare J, Albers P, Mathee A. Prevalence of hookah pipe smoking in high-school learners in Johannesburg, South Africa. S Afr Med J 2020;110(6):546-551. https://doi.org/10.7196/SAMJ.2020. v110i6.14333

10. Parry C, Myers B, Caulkins J. Decriminalisation of recreational cannabis in South Africa. Lancet 2019;393(10183):1804-1805. https://doi.org/10.1016/S0140-6736(19)30011-X

11. Swartz MC, Dannatt L, Lachman A. Cannabis use among hospitalised adolescents before and after decriminalisation in South Africa. S Afr J Psychiatr 2024;30:2244. https://doi.org/10.4102/ sajpsychiatry.v30i0.2244

12. Mmethi TG, Modjadji P, Mathibe M, et al. Substance use among school-going adolescents and young adults in rural Mpumalanga Province, South Africa. Behav Sci 2024;14(7):543. https://doi.org/10.3390/ bs14070543

13. Ramlagan S, Peltzer K, Matseke G. Epidemiology of drug abuse treatment in South Africa. S Afr J Psychiatr 2010;16(2):40-49. https://doi.org/10.4102/sajpsychiatry.v16i2.172

14. Buckner JD, Morris PE, Zvolensky MJ. Cannabis use and electronic cigarette use: The role of dual use on use frequency and related problems. Psychiatry Res 2021;304:114126. https://doi.org/10.1016/j. psychres.2021.114126

15. Osei AD, Mirbolouk M, Orimoloye OA, et al. Association between e-cigarette use and cardiovascular disease among never and current combustible-cigarette smokers. Am J Med 2019;132(8):949-954. https://doi.org/10.1016/j.amjmed.2019.02.016

16. Reddy KP, Schwamm E, Kalkhoran S, et al. Respiratory symptom incidence among people using electronic cigarettes, combustible tobacco, or both. Am J Respir Crit Care Med 2021;204(2):231-234. https://doi.org/10.1164/rccm.202012-4441LE

17. Davids H, Roman N, Rich E. Peer pressure and social acceptability between hookah pipe users and non-users among a sample of South African adolescents. S Afr J Child Health 2022;16(3):139-145. https://doi.org/10.7196/SAJCH.2022.v16i3.1709

18. Park-Lee E, Jamal A, Cowan H, et al. Notes from the field: E-cigarette and nicotine pouch use among middle and high school students - United States, 2024. Morb Mortal Weekly Rep 2024;73(35):774-778. https://doi.org/10.15585/mmwr.mm7335a3

19. Jamal A, Park-Lee E, Birdsey J, et al. Tobacco product use among middle and high school students - National Youth Tobacco Survey, United States, 2024. Morb Mortal Weekly Rep 2024;73(41):917-924. https://doi.org/10.15585/mmwr.mm7341a2

20. World Health Organization. Technical note on call to action on electronic cigarettes. Geneva: WHO, 2023. https://cdn.who.int/media/docs/default-source/tobacco-hq/regulating-tobacco-products/ends- call-to-action-background.pdf (accessed 28 April 2025).

21. Ayo-Yusuf O, Nkosi L, Agaku I. E-cigarette use and regulation in South Africa: A synthesis of evidence in response to industry efforts to undermine product regulation. Curr Addict Rep 2022;9(4):363-372. https://doi.org/10.1007/s40429-022-00437-3

22. Agaku IT, Egbe CO, Ayo-Yusuf OA. E-cigarette advertising exposure among South African adults in 2017: Findings from a nationally representative cross-sectional survey. BMJ Open 2021;11(8):e048462. https://doi.org/10.1136/bmjopen-2020-048462

23. Pettigrew S, Santos JA, Pinho-Gomes AC, et al. Exposure to e-cigarette advertising and young people’s use of e-cigarettes: A four-country study. Tob Induc Dis 2023;21:141. https://doi.org/10.18332/ tid/172414

24. Camenga D, Gutierrez KM, Kong G, et al. E-cigarette advertising exposure in e-cigarette naïve adolescents and subsequent e-cigarette use: A longitudinal cohort study. Addict Behav 2018;81:78-83. https://doi.org/10.1016/j.addbeh.2018.02.005

25. Hansen J, Hanewinkel R, Morgenstern M. Electronic cigarette advertising and teen smoking initiation. Addict Behav 2020;103:106243. https://doi.org/10.1016/j.addbeh.2019.106243

26. Wang Y, Duan Z, Weaver SR, et al. Association of e-cigarette advertising, parental influence, and peer influence with US adolescent e-cigarette use. JAMA Netw Open 2022;5(9):e2233938. https://doi. org/10.1001/jamanetworkopen.2022.33938

27. Struik LL, Dow-Fleisner S, Belliveau M, et al. Tactics for drawing youth to vaping: Content analysis of electronic cigarette advertisements. J Med Internet Res 2020;22(8):e18943. https://doi. org/10.2196/18943

28. Egga DK, Oduyoye O, Jacob IA, et al. Characterisation of substance use pattern among secondary school students in Nasarawa State, Nigeria. Discov Public Health 2024;21(1):238. https://doi. org/10.1186/s12982-024-00133-8

29. Steinberg L. A social neuroscience perspective on adolescent risk-taking. Dev Rev 2008;28(1):78-106.

https://doi.org/10.1016/j.dr.2007.08.002

Downloads

Published

2026-02-09

Issue

Section

Research

How to Cite

1.
Filby S, van Zyl-Smit R, Soin G, Kurten S. E-cigarette, cannabis, hookah and tobacco use patterns in fee-paying South African high schools. S Afr Med J [Internet]. 2026 Feb. 9 [cited 2026 Apr. 19];116(1):e3847. Available from: https://www.samajournals.co.za/index.php/samj/article/view/3847