Australian study explores vaping and calls for stronger control measures

Today, on April 4, news reports indicate that the World Health Organization (WHO) has issued warnings regarding the negative health impacts of e-cigarettes and the potential normalization of tobacco consumption due to public exposure to e-cigarettes. As a result, Australia has taken preventive measures to regulate e-cigarettes.

A new study set to be published in the Australian and New Zealand Journal of Public Health examined the use of e-cigarettes and attitudes towards them among a sample of Australians aged 15 to 30. The primary aim of the study is to provide novel insights to minimize the harm of e-cigarettes to adolescents. 

Background 

In Australia, most states allow the sale of non-nicotine e-cigarettes to individuals aged 18 and over. With the exception of online marketing, most other types of media are prohibited from advertising both nicotine and non-nicotine e-cigarettes. Despite the restrictive regulatory environment, the usage rate of e-cigarettes among the 18-24 age group nearly doubled, from 2.8% in 2016 to 5.3% in 2019.

It is well known that e-cigarettes contain a range of toxins that are often mislabeled. While the combined use of tobacco and e-cigarettes can help some people quit smoking, it may also pose problems due to various factors, such as higher overall nicotine intake, increased sensitivity to smoking cues, and greater risks of adverse respiratory and cardiovascular outcomes.

About the Study

The current study explores various behaviors and attitudes related to e-cigarettes among Australian youth and young adults. The main interests include the motivations for young people to use e-cigarettes, their use/intention to use other tobacco products, locations of use, exposure to advertising, and awareness of associated harms. The study also assesses the use of cannabis e-cigarettes, tobacco use, and dual use, while considering the interrelationships between the use of these substances.

A nationally representative sample of 1,006 Australians completed an online survey. Participants were aged between 15 and 30 years. The survey included the key areas of interest mentioned above. Descriptive and chi-square analyses were conducted to detect significant differences between groups, and multivariable logistic regression was estimated to identify factors associated with previous or current e-cigarette use.

Main Findings

The results provide important information on how young people obtain and use e-cigarettes. In the current sample, the estimated current usage rate is 14%, significantly higher than the 4.8% in the 25-29 age group and 4.5% in the 15-24 age group. The results for ever use (current or past) are more comparable. Previous literature has documented that 41% of individuals aged 18-39 have tried or used e-cigarettes. The current study reports that 47% of participants have used e-cigarettes, a slightly higher figure likely due to the younger cohort in this instance.

Most current users reported using nicotine e-cigarettes, and most participants under 18 found it relatively easy to purchase e-cigarettes in stores. This indicates that young people in Australia are using e-cigarettes through prohibited means and are circumventing regulations.

Current smoking status was found to be the strongest correlate of e-cigarette use. Additionally, the number of friends who use e-cigarettes is another key factor associated with e-cigarette use. This is alarming, as most participants reported having at least one close friend who uses e-cigarettes. Therefore, managing the environment to minimize young people's use of e-cigarettes is crucial. 

Respondents expressed a preference for fruit-flavored products and disposable e-cigarettes. Approximately 25% of non-e-cigarette users showed curiosity about e-cigarettes. It is illegal to promote e-cigarettes in Australia, so it is surprising that about 25% of respondents reported seeing advertisements at gas stations and supermarkets. 

Conclusion

A key limitation of the study is that participants were recruited online and may not represent the general population as imagined. The findings should not be generalized, and further research is needed to validate the results recorded here. Additionally, due to the use of cross-sectional data, only correlations can be established, not causation. Thirdly, other survey items (e.g., sources and locations of use) did not distinguish between nicotine and non-nicotine e-cigarettes. This is due to the inconsistent labeling of e-cigarette products in Australia. The uncertainty caused by labeling is very evident in the survey sample, as about 25% of users could not correctly specify the strength of the e-liquid they were using. #p#分页标题#e#

In summary, these results have implications for Australia's regulatory approach to e-cigarettes. Despite bans and restrictions, young people appear to be exposed to stimuli related to e-cigarettes in their physical and social environments and seem to be able to easily access e-cigarettes. Strengthening regulation and enforcement of laws is necessary to minimize the harm caused by e-cigarettes to young people.