This study analyzed young adult vapers' views related to EC and examined "how they accept and use EC". Analysis of this study revealed that young adult vapers in different characters (single user or dual user) have different initiation processes, and that present specific cultural identities in terms of temporal orientation and self-construction.
Specifically, single user and dual user have similar usage patterns in general but have different behavioral structures in the EC initiation process in detail. First, in terms of use patterns, both are exposed to ECs through peer recommendations or influenced by popular trends; subsequently, they make resolutions after a comprehensive assessment of the perceived risks, benefits, and barriers. However, single users and dual users have different biases in their motivations for use: the former is motivated by curiosity, while the latter is motivated by quitting smoking. Significantly, since dual users have experience with traditional cigarettes, comparison with traditional cigarettes was in their comprehensive evaluation of ECs constantly. Factors associated with the use of e-cigarettes have been examined, which refer to the individual level, the interpersonal level, and the social and policy level.[24] Findings in this study regarding the reasons and scenarios of EC use among young adult vapers largely cover those that have emerged from established relevant surveys and literature. [25, 26]
Furthermore, single users and dual users have different biases in their motivations for use: the former is motivated by curiosity to engage with e-cigarettes, while the latter is motivated by quitting smoking. As a result, they differ in the outcome and degree of need satisfaction of e-cigarettes, which in turn leads to different biases in risk perception, benefit perception, and barrier perception. Previous studies have shown that dual users have less positive attitudes toward e-cigarettes than single users [27] and fewer risk perceptions towards e-cigarettes [28], which is consistent with the findings of this paper.
Significantly, since dual users have experience with traditional cigarettes, comparison with traditional cigarettes was in their comprehensive evaluation of e-cigarettes constantly. When the experience of e-cigarettes meets the dual users' motivational expectations for quitting smoking, they will continuously use e-cigarettes as an aid to quit smoking; when it does not, e-cigarettes are treated as a substitute for traditional cigarettes and used when traditional cigarettes are restricted. Therefore, it is clear that motivation and experience with traditional cigarettes may be important factors to consider when tailoring information to e-cigarette users.
Temporal orientation can be used as an individual characteristic to predict a variety of health-related beliefs, attitudes, and intentional behaviors. Single users focused more on EC access to their present benefits, while dual users placed more emphasis on future risk avoidance. Established research demonstrates that individuals with low CFC will focus more on immediate needs and concerns; whereas high CFC will focus more on the future impact of their behavior and act accordingly.[29] This is consistent with our investigation that dual users have a higher level of consideration for future negative consequences compared to single users. The reason for this may be that dual users have experience with traditional cigarettes and already have a baseline of the harms of smoking. Meanwhile, their experience with ECs does not meet demand expectations. As a new tobacco product, ECs also have multiple uncertainties and are associated with unnatural factors, leading to EC becoming an alternative to traditional cigarettes for them. Thus, persuasive messages for dual users should place more emphasis on the potential uncertainty of e-cigarette risks; while, for single users should weaken the temporary benefits of EC and strengthen the immediate risks, such as e-cigarettes are not fashionable and may bring safety hazards. Therefore, health communication for dual users should make clear that EC have the same restrictions on use scenarios as traditional cigarettes, and emphasize their impact and harm to others and the surroundings.
Scholars argued that independent and interdependent self-constructions coexist within the same culture and individual [30] and varied across individuals and contexts.[31] Young adult vapers with independent self-construction will have higher self-efficacy and are more likely to resist smoking compared to others, which is consistent with the findings of this paper. Single users were more concerned with personal need satisfaction than with the impacts of the behavior on others and the harms of long-term EC usage; the opposite consideration was true for dual users. Social norms regarding traditional cigarettes were transferred to ECs for dual users compared to single users. As a result, the dual users had a biased interdependent self-construction. They are group-integration oriented and more concerned about their surroundings and collective interests.
The validity of message tailoring is moderated and constrained by factors such as context and requires formative research [32] or relies on the researcher's cultural prior knowledge of the target group [33]. While the antecedents and consequences of EC behavior have been explored, this study unified these factors and defined EC usage as an interactive process that analyzed the causes, contexts, and consequences of young adult vapers’ behavior. It also depicted the initiation process of young adult EC usage and compared the similarities and differences in patterns and behavioral structures between single and dual users. This study also identified cultural identities in young adult vapers’ EC usage in terms of temporal orientation and self-construction. These cultural factors will facilitate group distinction and message tailoring in persuasion campaigns and improve the effectiveness of health education and interventions.
Limitations and future research
There are, of course, some limitations to this study. The sample for this study was primarily drawn from young adults, and the results do not include the voices of adolescent vaper groups regarding EC. To some extent, this limits the generalization of the study's findings, and it is only appropriate for health practices with tobacco control messages tailored to young adults. In addition, the impact of focus groups can lead to and result in potential bias in the results. While focus groups have their advantages, participants may share more or feel more comfortable if a traditional interview is used.