Cigarette affordability in Canadian provinces: a 10-year review

Examining socio-economic disparities among e-cigarette users and cigarette smokers in three Canadian jurisdictions

INTRODUCTION

It is well established that a gradient exists among cigarette smokers, such that smoking is more prevalent among individuals who are of lower socio-economic status (SES). In this study, we examined whether a similar SES gradient exists among electronic cigarette (e-cigarette) using youth and adults in three Canadian jurisdictions.

METHODS

A secondary analysis of data from Ontario, Quebec and Yukon respondents (n = 58,592) to the 2017-2018 Canadian Community Health Survey was conducted. Unadjusted and adjusted logistic regression models explored SES measures: total and relative household income, and education level, separately on use of e-cigarettes or cigarettes in the past 30 days. Models adjusted for additional socio-demographic and psychosocial covariates.

RESULTS

A significant inverse SES gradient existed for cigarette smoking based on education and income variables, with higher education and income associated with decreasing consumption in a stepwise manner. No SES gradient was observed for e-cigarettes.

DISCUSSION AND CONCLUSIONS

While a robust SES gradient was observed among cigarette smokers, no gradient for e-cigarette use was observed. Explanations for these findings may be linked to perceptions that e-cigarettes are healthier, have convenient designs and appealing flavours, and less stigmatised. As more becomes known about potential harms from e-cigarettes, effective interventions may be needed to prevent the emergence of a gradient that disproportionately affects those at lowest income and education levels. Continued monitoring of e-cigarette use patterns across SES groups is necessary for public health.

Evaluating trends in cigarette and HTP use in Japan and measurement issues in the National Health and Nutrition Survey

INTRODUTION

Studies have reported that the rapid rise in heated tobacco product (HTP) sales in Japan accompanied an accelerated decline in cigarette sales. However, these studies do not distinguish whether those who previously smoked cigarettes became dual users with HTPs (smoking fewer cigarettes) or instead switched completely to HTPs. If HTPs present lower health risks than cigarettes, replacing cigarettes with HTPs is more likely to improve public health than cigarette users continuing as dual users.

METHODS

To evaluate the role of HTP introduction relative to smoking prevalence, we examine trends in cigarette prevalence as related to trends in HTP use using Japan's National Health and Nutrition Survey (NHNS) from 2011 to 2019. We develop measures of relative changes in smoking prevalence use by age and gender in the pre-HTP and post-HTP periods. We then analyse prevalence data by year using joinpoint regression to statistically distinguish changes in trend.

RESULTS

Compared with the pre-HTP 2011-2014 period, cigarette prevalence decreased more rapidly during the post-HTP 2014-2017 period, particularly among younger age groups. However, the changing format of NHNS questions limits our ability to determine the impact on smoking prevalence, particularly after 2017.

CONCLUSIONS

While suggesting that HTPs helped some people who smoke to quit smoking, this study also shows the difficulties in eliciting accurate survey responses about product use and distinguishing the impact of a potentially harm-reducing product in an environment subject to rapidly evolving patterns of use.

Trends in vaping and smoking behavior before and during the COVID-19 pandemic in Canada: Beneficial and potentially detrimental changes

INTRODUCTION

E-cigarette and cigarette use may have changed during the COVID-19 pandemic, however, there is no consensus in existing literature, and current Canadian studies have not used representative samples. Thus, there is a need for robust national estimates.

OBJECTIVE AND METHODS

The primary objective was to describe the 30-day period prevalence of smoking and vaping before and during the COVID-19 pandemic in Canada. This study analyzed three years of the cross-sectional Canadian Tobacco and Nicotine Survey: 2019 (pre-pandemic), 2020 (9 months into the pandemic) and 2021 (21 months into pandemic).

RESULTS

Thirty-day period prevalence of vaping over the 2019, 2020, and 2021 study periods were 4.8 (95%CI: 4.2-5.3), 4.6% (95%CI: 4.1-5.2), and 5.2% (95%CI: 4.7-5.7), respectively. The 30-day period prevalence of smoking over the 2019, 2020, and 2021 study periods were 11.9% (95%CI: 10.9-12.7), 10.3% (95%CI: 9.4-11.2), and 10.3% (95%CI: 9.4-11.1), respectively. Notably, estimates of smoking for females decreased considerably from 2019 (11.0%; 95%CI: 9.9--12.2%) to 2020 (8.6%; 95%CI: 7.5-9.7). Estimates of vaping in those aged 20-24 increased substantially from 2020 (13.0%; 95%CI: 10.9-15.1) to 2021 (17.2%; 95%CI: 15.4-18.9).

CONCLUSIONS

Changes to smoking and vaping were restricted to subsets within the population. In those aged 20-24, there was a modest increase in vaping from 2020 to 2021. In females, there was a decrease in smoking from 2019 to 2020, which persisted in 2021.