Potential Harm Of E-cigarettes Research Articles

An experimental study of messages communicating potential harms of electronic cigarettes.

There has been an upsurge of e-cigarette use in the United States in recent years. While e-cigarettes may contain lower levels of toxic chemicals than combusted cigarettes, they still pose serious health hazards, including increased risk for heart and respiratory disease. Despite these risks, public awareness of the health harms of e-cigarettes remains low. Thus, it is important to educate the public about the potential harms of e-cigarettes. This study took themes commonly found in antismoking messages and used them to develop messages about harms of e-cigarettes. A national sample of 2801 current smokers and nonsmokers (aged 18+ years) were randomized to view one of four e-cigarette messages (harmful effect of chemicals, uncertainty about ingredients, distrust of big tobacco, or cost of vaping) or a control message (bottled water ad). Participants’ reactions to the messages and behavioral intentions were assessed immediately following the exposure. MANOVA examined effects of the messages on blocks of the outcome variables and univariate analyses estimated adjusted means for each experimental condition for each outcome. The message about harmful chemicals was perceived as the most informative and effective and elicited the highest levels of negative emotions (Ps<0.05). However, on measures of actual effectiveness, the other messages performed equally well. Specifically, messages with different themes (harmful chemicals, uncertainty about ingredients, anti-industry, or financial cost) increased perceived risk of e-cigarettes, support for e-cigarette control, and lowered self-exempting beliefs and intentions to use e-cigarettes (Ps<0.05). Themes commonly used in anti-smoking messages may be effective in educating the public about the potential harm of e-cigarettes. The observed differential effects of the messages suggest the need to use multiple themes in a public education campaign about e-cigarettes.

The attitude towards E-cigarettes, disengagement belief, E-cigarette health literacy and susceptibility among youths and adolescents

ABSTRACT Purpose: The marketing effort of e-cigarettes producers makes youths and adolescents less alert about the potential harm of e-cigarettes. The trend of e-cigarette use among vocational school students becomes increasingly severe in China. This study is to reveal the psychological process that plays a critical role in affecting students’ e-cigarette susceptibility. Method: This study uses the time-lagged data collected from 835 vocational school students in China and the structural equation modelling. Findings: This study finds that the more inclusive attitude towards e-cigarettes makes vocational school students more easily undertake the cognitive process of disengagement belief, which in turn can boost the level of their e-cigarette susceptibility. In addition, such mediation process is shown to be weaker for those displaying the high-level e-cigarette health literacy. Implications: In the future, it is essential to help youths and adolescents built a correct understanding of e-cigarettes from multisource (e.g., schools and governments).

Electronic Cigarettes: Impact on Lung Function and Fractional Exhaled Nitric Oxide Among Healthy Adults.

Electronic cigarettes (e-cigarettes) are rapidly becoming an alternative form of nicotine consumption worldwide and a disruptive element in the global health diplomacy. This study aimed to investigate the impact of e-cigarettes on lung function and fractional exhaled nitric oxide (FeNO) among young healthy male adults. Sixty apparently healthy male volunteers were recruited and divided into two groups. Group 1 (e-cigarette-exposed group) consisted of 30 males who were daily e-cigarette users (age 27.07 ± 6.00 [mean ± SD] years). Group 2 (control group) consisted of 30 males who were not e-cigarette users (age 25.90 ± 7.72 [mean ± SD] years). Both groups were neither current nor former traditional tobacco users. Age, ethnicity, height, weight, and socioeconomic status were considered using a matched design to investigate the impact of e-cigarette use on lung function and FeNO. The lung function test parameters that were found to be significantly decreased in e-cigarette users compared to their control group were forced expiratory volume in the first second (FEV1), forced expiratory ratio (FEV1/FVC), forced expiratory flow—25% (FEF25%), forced expiratory flow—50% (FEF50%), forced expiratory flow—75% (FEF75%), forced expiratory flow—25%–75% (FEF25%–75%), and forced expiratory flow—75%–85% (FEF75%–85%). FeNO was also decreased in e-cigarette users, but it did not reach the level of significance. The use of e-cigarettes significantly impaired various lung function parameters and the pattern of impairment exhibited a peripheral obstructive airway involvement. These findings have a general message for the global health community on the potential harm of e-cigarettes on lung function.

Internal medicine resident knowledge and perceptions regarding electronic cigarettes

Electronic cigarettes are an important public health concern. Smoking remains the leading cause of preventable death and morbidity worldwide and is a risk factor for six of the eight leading global causes of death. E-cigarettes have been proposed as an enticing prospect to reduce the harms of conventional tobacco use. However, they are increasingly used by middle-school and high-school students and threaten important barriers that have slowly protected the public against tobacco products including renormalization, price barriers, limitations on advertising and access, and bans on flavoring. Physicians have poor knowledge about the potential harms of e-cigarettes and limited data exists regarding potential long-term outcomes. We explored resident physician beliefs and practices regarding e-cigarettes. Several themes were identified: (1) Conversations regarding e-cigarettes are becoming more frequent in physician offices; (2) A lack of knowledge regarding potential harms and benefits of e-cigarettes exists among resident physicians; (3) Physicians falsely believe that e-cigarettes are safer alternatives to conventional smoking products; (4) More education is needed regarding evidence based smoking cessation techniques. Key words: Electronic cigarettes, public health, nicotine, smoking.

Changing Perceptions of Harm of E-Cigarettes Among U.S. Adults, 2012-2015.

Although the impact of long-term use of electronic cigarettes (e-cigarettes) on health is still unknown, current scientific evidence indicates that e-cigarettes are less harmful than combustible cigarettes. The study examined whether perceived relative harm of e-cigarettes and perceived addictiveness have changed during 2012-2015 among U.S. adults. Data were from Tobacco Products and Risk Perceptions surveys of probability samples representative of U.S. adults in 2012, 2014, and 2015. Changes over time in perceived harmfulness of e-cigarettes were examined using pairwise comparisons of proportions and multinomial logistic regression analysis. Analyses were conducted in January 2016. Whereas 11.5% and 1.3% of adults perceived e-cigarettes to have about the same level of harm and to be more harmful than cigarettes, respectively, in 2012, 35.7% and 4.1% did so in 2015. The proportion of adults who thought e-cigarettes were addictive more than doubled during 2012-2015 (32.0% in 2012 vs 67.6% in 2015). Compared with 2012, the odds of perceiving e-cigarettes to be equally or more harmful (than to be less harmful) doubled (95% CI=1.64, 2.41) in 2014, and tripled (95% CI=2.60, 3.81) in 2015. There is an increase in the proportion of U.S. adults who misperceive the harm of e-cigarettes and consider them to be as harmful as combustible cigarettes. The study highlights the need to design public health messages that accurately interpret the scientific data on the potential harm of e-cigarettes and clearly differentiate the absolute from the relative harm of e-cigarettes.

Primary Care Physicians' Beliefs and Practices Regarding E-Cigarette Use by Patients Who Smoke: A Qualitative Assessment.

We explored primary care physicians’ (PCPs’) beliefs and practices about e-cigarettes. Cross-sectional, semi-structured interviews with PCPs in 2014 were conducted and audio-recorded. Participants were 15 general internal and family medicine physicians practicing in two settings in Virginia, USA. Interview recordings were transcribed, and the content analyzed using the Constant Comparative Method to identify key themes regarding PCPs’ reported current practices and beliefs. Five themes were identified: (1) existing clinic processes do not include mechanisms to screen for noncombustible tobacco products (such as e-cigarettes); (2) e-cigarette discussions are becoming commonplace with patients initiating the discussions and seeking physician guidance regarding e-cigarette use; (3) a lack of knowledge regarding the potential harms and benefits of e-cigarettes, yet a willingness to support their patients’ desire to use e-cigarettes (4) believing e-cigarettes are a safer alternative to smoking combustible tobacco products; and (5) abandoning concerns regarding the potential harms of e-cigarettes in the context of highly addicted patients and those with extensive comorbidities. Despite acknowledging limited knowledge regarding e-cigarettes, findings suggest that some PCPs are currently recommending e-cigarettes to their patients for smoking cessation and relative harm reduction, often personalizing recommendations based on the patient’s perceived addiction level and current health status. Physicians need to be informed about the evolving evidence regarding the risks and benefits of e-cigarettes.