Department of Global Public Health, Faculty of Medicine, University of Tsukuba.
Cancer Control Center, Osaka International Cancer Institute.
Environ Health Prev Med. 2023;28:5. doi: 10.1265/ehpm.22-00219.
Heated tobacco product (HTP) use has increased substantially between 2016 and 2017 in Japan. This study aims to clarify how HTP use (IQOS, Ploom, and glo) spread across the different combustible cigarette smoking statuses during 2015-16 and 2017-18 in Japan.
We compared the two periods of (i) 2015 to 2016 (N = 5,366) and (ii) 2017 to 2018 (N = 3,422) from a longitudinal study randomly sampling members from the Japan "Society and New Tobacco" Internet Survey (JASTIS). Multivariable logistic regression models for current HTP use in the previous 30 days by combustible cigarette smoking status in the previous year were used adjusting for socio-demographic factors.
HTP use increased by 10 times in the 2017-18 cohort compared with the 2015-16 cohort according to the adjusted odds ratio (95% confidence interval) for current HTP use as 10.2 (7.03-14.8). According to smoking status, significantly higher adjusted ORs (95% CIs) of current HTP use for the after period were observed: 2.60 (1.37-4.94) for never smokers, 7.82 (3.64-16.8) for former smokers, 21.1 (5.73-77.9) for current smokers with intention to quit, and 17.0 (9.58-30.3) for current smokers without intention to quit.
During 2015 to 2018 in Japan, HTP use dramatically increased in all subgroups except for never smokers.
2016 年至 2017 年期间，日本加热烟草制品（HTP）的使用量大幅增加。本研究旨在明确 2015-16 年和 2017-18 年期间，HTP（IQOS、Ploom 和 glo）在不同可燃香烟吸烟状况下的传播情况。
我们比较了两个时期：（i）2015 年至 2016 年（N=5366）和（ii）2017 年至 2018 年（N=3422），这两个时期均来自日本“社会与新烟草”互联网调查（JASTIS）的一项纵向研究，对随机抽样的成员进行了调查。通过调整社会人口因素，利用可燃香烟吸烟状况在去年的基础上，对过去 30 天内当前 HTP 使用的多变量逻辑回归模型进行了分析。
根据当前 HTP 使用的调整后优势比（95%置信区间），2017-18 队列中 HTP 使用量是 2015-16 队列的 10 倍，为 10.2（7.03-14.8）。根据吸烟状况，在后一时期观察到当前 HTP 使用的调整后比值比（95%CI）显著更高：从不吸烟者为 2.60（1.37-4.94），前吸烟者为 7.82（3.64-16.8），有戒烟意向的当前吸烟者为 21.1（5.73-77.9），没有戒烟意向的当前吸烟者为 17.0（9.58-30.3）。
在 2015 年至 2018 年期间，除从不吸烟者外，日本所有亚组的 HTP 使用量都显著增加。
