[Content analysis of newspaper reports on passive smoking regulations in Japan]

Objectives　Ever since Tokyo was awarded the privilege to host the 2020 Olympic Games, the Japanese Ministry of Health, Labour, and Welfare has worked toward implementing a ban on passive smoking. This study examined the present situation of passive smoking in Japan, and the coverage of passive smoking regulations in newspaper reports, based on a content analysis. This was followed by a comparison with the contents of the "White Paper on Tobacco," published by the Japanese Ministry of Health, Labour, and Welfare in August, 2016.Methods　In total, 182 articles published from September 7, 2013 to March 31, 2017 were collected from three major newspapers based in Tokyo (Asahi, Yomiuri, and Mainichi). The article search criteria included the presence of the following keywords in the title or main text: "passive smoking OR entire surface smoking cessation OR indoor smoking OR indoor smoking cessation OR smoking cessation in the site OR smoking cessation in the building." Online posts and articles that did not focus mainly on the regulation of passive smoking were excluded. The 37 coding categories that were developed were classified either as positive or negative (with respect to coverage of passive smoking regulations). The assessment of passive smoking in the White Paper on Tobacco informed the coding categories, to allow the evaluation of the extent to which the contents of the White Paper were reflected in newspaper reports.Results　Among the 182 articles examined, 107 addressed only the positive aspects of the regulations, while 7 addressed only the negative aspects. Further, 50 articles addressed both positive and negative aspects, while 18 addressed neither. Among those addressing both positive and negative aspects, 14 (28%) included counterarguments to the negative comments, which consistently reflected the contents of the White Paper on Tobacco.Conclusions　Majority of the articles reported only on the positive aspects of the regulations. Persuasive articles that presented both the positive and negative aspects of the issue, which included counterarguments to the negative opinions, were scarce. However, such articles were found to some degree in the editorials of newspapers. The influence of such editorials may increase if newspapers include the pros or cons of this issue, and present counterarguments. Additionally, some topics were not reported sufficiently. Thus, problems were observed in the newspaper reports regarding passive smoking regulations.