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Rapid increase in heated tobacco product (HTP) use from 2015 to 2019: from the Japan ‘Society and New Tobacco’ Internet Survey (JASTIS)
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Rapid increase in heated tobacco product (HTP) use from 2015 to 2019: from the Japan ‘Society and New Tobacco’ Internet Survey (JASTIS)
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Rapid increase in heated tobacco product (HTP) use from 2015 to 2019: from the Japan ‘Society and New Tobacco’ Internet Survey (JASTIS)
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Journal Article
Rapid increase in heated tobacco product (HTP) use from 2015 to 2019: from the Japan ‘Society and New Tobacco’ Internet Survey (JASTIS)
2021
Overview
At baseline in 2015, 8240 participants aged 15–69 years were randomly selected from a Japanese large internet search agency, Rakuten Research.2 Adjusted estimates using inverse probability weighting (IPW) obtained from a propensity score (calculated by logistic regression models using basic demographic and socioeconomic factors) were calculated to correct for the selectivity of internet-based samples, using a probability sample that is representative of the Japanese population from the Comprehensive Survey of Living Conditions of People on Health and Welfare.3 We further adjusted for non-response using IPW from the 2016 survey or after. According to product type, the most recent 2019 HTP use prevalence (95% CI) in Japan was estimated as follows: 5.8% (4.4%–7.6%) for IQOS, 6.1% (4.7%–7.8%) for Ploom TECH and 3.6% (2.6%–5.0%) for glo (online supplementary table 1). Under the new law, the tobacco industry promotes HTPs on websites, in official stores, consumer electronics retailers and convenience stores.6 7 However, WHO advises policy-makers to ban HTP marketing and provide warning messages about HTPs as well as conventional cigarettes.8 Our study highlights the rapid spread of HTPs in Japan, especially among smokers, men and the younger population. Contributors TT had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.Study concept and design: all authors; acquisition of data: TT; analysis and interpretation of data: AH and TT; drafting of the manuscript: AH and TT; critical revision of the manuscript for important intellectual content: all authors; statistical analysis: AH and TT; and study supervision: NK.
