For novel tobacco products that potentially reduce the risk of tobacco harm, post-market surveillance is important to observe population usage and behaviours associated with everyday use. This pilot study was performed to examine the use of tobacco products in three Japanese urban regions. This study was a cross-sectional epidemiological survey administered in Sendai, Tokyo and Osaka, Japan, from May 19th to June 25th, 2018. Participants were selected with a three-stage probability random sampling process that first identified primary sampling units, then households and finally individuals. Eligible participants were aged at least 20 years who were willing to participate after information about the study was provided. People younger than 20 years and those living in institutions were excluded. Questionnaires were paper based and administered door to door. Responses were obtained from 4154 participants. Sixty-five percent self-reported being never, 19% current and 16% former users of any tobacco product at the time of the survey. Combustible tobacco products (almost all being cigarette) were used most (16%) followed by HTPs (5%). In the categories of combustible tobacco users and HTP users, 70% and 16%, respectively, used these products exclusively. Dual use was reported by 11% of respondents. Compared with 12 months before the survey, 12% of sole combustible tobacco products users were using HTPs exclusively or as dual users and 6% had quit tobacco products completely; 94% of sole HTP users remained sole users and 4% had quit tobacco products completely; and amongst dual users 12% had reverted to exclusive use of combustible tobacco products, 14% had switched to sole use of HTPs and 4% had quit tobacco products completely. HTPs seem to be accepted as an alternative tobacco product amongst combustible tobacco users. Given complex findings for dual use, improved understanding of the motivations underlying this behaviour would be of interest.

中文翻译：

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2018 年在东京、大阪和仙台进行的一项横断面调查的结果，旨在评估日本引入加热烟草产品 (HTP) 后烟草和尼古丁产品的使用情况。


对于可能降低烟草危害风险的新型烟草产品，上市后监测对于观察人群使用情况和与日常使用相关的行为非常重要。这项试点研究旨在调查日本三个城市地区烟草制品的使用情况。本研究是 2018 年 5 月 19 日至 6 月 25 日在日本仙台、东京和大阪进行的一项横断面流行病学调查。通过三阶段概率随机抽样过程选择参与者，首先确定初级抽样单位，然后确定家庭和家庭。最后个人。符合资格的参与者年龄至少为 20 岁，在提供有关研究的信息后愿意参与。 20 岁以下的人和生活在机构中的人被排除在外。调查问卷以纸质形式进行，并挨家挨户进行。收到了 4154 名参与者的回复。 65% 的人自称在调查时从未使用任何烟草产品，19% 目前使用任何烟草产品，16% 曾经使用过任何烟草产品。使用最多的是可燃烟草制品（几乎全部是卷烟）（16%），其次是加热烟草制品（5%）。在可燃烟草使用者和 HTP 使用者类别中，分别有 70% 和 16% 只使用这些产品。 11% 的受访者报告双重用途。与调查前12个月相比，12%的单独可燃烟草制品使用者仅使用加热烟草制品或作为双重使用者，6%的人完全戒掉烟草制品； 94% 的单一 HTP 使用者仍然是单一使用者，4% 的人完全戒掉了烟草产品；在双重使用者中，12% 的人恢复只使用可燃烟草制品，14% 的人改用单独使用加热烟草制品，4% 的人完全戒烟。 HTP 似乎被可燃烟草使用者视为一种替代烟草产品。鉴于双重用途的复杂发现，加深对这种行为背后动机的理解将是有意义的。