**5. Conclusions**

This paper conducted an analysis of current debates surrounding e-cigarette usage on Twitter. We identified two main themes that arose, which were either based on pro-vaping or anti-vaping views, and this method has been utilised in previous research [26]. Our work adds to the body of literature demonstrating the potential of Twitter for health research [27]. We then developed a flowchart, by reviewing existing literature, which can be used to inform public health information dissemination. A limitation of our study is that we examined only English-language tweets, which may have led to more tweets from English-speaking countries such as the United States and the United Kingdom. Furthermore, there may have been some tweets not related to e-cigarettes in the dataset.

**Author Contributions:** Conceptualization, W.A.; investigation, X.M.-G. and J.V.-A. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding

**Conflicts of Interest:** The authors declare no conflict of interest.
