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. 2022 Apr 21:47:101401.
doi: 10.1016/j.eclinm.2022.101401. eCollection 2022 May.

Electronic cigarette use among adults in 14 countries: A cross-sectional study

Liping Pan  1 , Jeremy Morton  1   2 , Lazarous Mbulo  1 , Anna Dean  1   2 , Indu B Ahluwalia  1
Affiliations

Electronic cigarette use among adults in 14 countries: A cross-sectional study

Liping Pan et al. EClinicalMedicine. .

Abstract

Background: The tobacco product landscape continues to change. No recent data for electronic cigarette (e-cigarette) use have been reported for multiple countries based on nationally representative surveys. We examined prevalence of e-cigarette use and variations by sociodemographic characteristics in 14 countries using Global Adult Tobacco Survey (GATS) data between Jan 1, 2015, and Dec 31, 2018.

Methods: GATS is a nationally representative household survey of tobacco use among adults aged ≥15 years. The analytic sample size ranged from 4347 in Senegal to 74,037 in India. Prevalence of current e-cigarette use was stratified by sociodemographic subgroups. Age-standardized prevalence was estimated according to world 2000-2025 standard population. Significant differences in adjusted prevalence across sociodemographic subgroup was determined by p value for marginal effect contrast in multivariable logistic regression models.

Findings: More than 50% of adults in Russia, Romania, and Ukraine and additionally more than 30% of adults in China, Costa Rica, Uruguay, Mexico, and Philippines were aware of e-cigarettes. Crude prevalence of current e-cigarette use ranged from 0.02% (95% CI 0.01%-0.04%) in India to 3.5% (2.9%-4.2%) in Russia. Prevalence was <1% in nine countries. Approximately 18.3 million adults currently used e-cigarettes across the 14 countries. Men had a significantly higher prevalence of current e-cigarette use than women in eight countries. Additionally, higher adjusted prevalence was observed in some countries among young adults aged 15‒24 years, urban residents, and adults with higher education levels and higher wealth index.

Interpretation: The study provides needed baseline data on e-cigarette awareness and use. Continued surveillance is essential to inform interventions and policies to prevent initiation and enhance cessation support.

Funding: None.

Keywords: Adults; Country; E-cigarettes; Electronic cigarettes; Global; Prevalence.

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Conflict of interest statement

We declare no competing interests.

Figures

Figure 1
Figure 1
Age-standardized prevalence of e-cigarette use among adults aged ≥ 15 years in 14 countries, 2015-2018. Error bars are 95% confidence intervals.
Figure 2
Figure 2
Age-standardized prevalence of e-cigarette use among adults aged ≥ 15 years, by sex, 2015-2018. Error bars are 95% confidence intervals.
See this image and copyright information in PMC

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