When there is evidence that e-cigarettes help smokers quit smoking, the seventh report was published in 2019, and a study showed that using e-cigarettes to help quit smoking can increase the success rate of quitting smoking by two times. This report lists these pieces of evidence, but believes that the research findings are influenced by factors such as the usage patterns of smokers and the management environment, and cannot reflect the potential role of e-cigarettes in quitting smoking.
The eighth report mentions in the core content of Chapters 7, 8, and 9 regarding electronic cigarettes that they can help smokers quit smoking. According to reports, some evidence suggests that e-cigarettes help smokers quit smoking. Among dual users who use both cigarettes and e-cigarettes, those with higher education or income are more likely to fully use e-cigarettes within two years.
Of particular concern are flavored e-cigarettes (such as fruit flavored e-cigarettes). This article cites a study in the International Journal of Environmental Research and Public Health, pointing out that fruit flavor is a recognized e-cigarette flavor among smokers and plays an important role in smoking cessation. After switching to fragrant e-cigarettes, the average daily cigarette consumption of smokers decreased from 20 to 4.
However, many smokers who use e-cigarettes to help quit smoking are still using e-cigarettes, and it is unclear what long-term effects this will have on personal and public health. The report suggests in policy recommendations that the effects of different flavors of e-cigarettes on smoking cessation should be studied, and future research directions should be listed, such as "which smokers use e-cigarettes most effectively" and "whether odorless e-cigarettes can help smokers quit smoking".