Impact of Canada’s Menthol Cigarette Ban on Quitting among Menthol Smokers: Pooled Analysis of Pre–p
Tuesday, May 24, 2022
Posted by: Natalia Gromov
Fong GT, Chung-Hall J, Meng G,
et al.
Impact of Canada’s Menthol
Cigarette Ban on Quitting among Menthol Smokers: Pooled Analysis of Pre–post
Evaluation from the ITC Project and the Ontario Menthol Ban Study and
Projections of Impact in the USA.
Tobacco Control Published Online First: 28 April
2022. doi: 10.1136/tobaccocontrol-2021-057227
Introduction Between
2015 and 2018, Canada banned menthol cigarettes. This study pooled data from
two pre–post cohort studies (the Ontario Menthol Ban Study, and the
International Tobacco Control Policy Evaluation (ITC) Canada Survey, conducted
in seven provinces) to derive more precise estimates of the impact of Canada’s
menthol ban on quitting and to apply these estimates to project the impact of a
menthol ban in the USA.
Methods Weighted
multivariable logistic analyses compared post-ban quit success of menthol
smokers with non-menthol smokers (for daily smokers and for all (daily +
non-daily) smokers), controlling for sex, age, ethnicity, education, baseline
smoking status, baseline cigarettes per day and study regions. Projections to
the USA were created by multiplying the effect size of the Canadian menthol ban
on quitting (percentage of increased quitting among menthol smokers) by the
number of menthol smokers overall and among African Americans, from the 2019
National Survey on Drug Use and Health.
Results After
the menthol cigarette ban, menthol smokers were more likely than non-menthol smokers
to have quit smoking among daily smokers (difference=8.0%; 95% CI: 2.4% to
13.7%,p=0.005) and all (daily+non-daily) smokers (difference=7.3%; 95% CI: 2.1%
to 12.5%,p=0.006). The projected number of smokers who would quit after a US
menthol ban would be 789 724 daily smokers (including 199 732 African
Americans) and 1 337 988 daily+non-daily smokers (including 381 272 African
Americans).
Conclusions This
pooled analysis of Canada’s menthol cigarette ban provides the foundation for
estimating the impact of menthol bans in the USA and other countries.
Projections suggest that a US menthol cigarette ban would have a substantial
impact on increasing quitting.
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