Insights Into Electronic-Cigarette Perspectives: Smokers’ Knowledge Attitudes and Practices at Hamad Medical Corporation, 2020

Introduction

Tobacco consumption accounts for 7 million global deaths annually due to direct use (6 million) and (1.2 million) due to passive smoking.¹ Furthermore, the economic burden of tobacco use has overwhelmed nations and healthcare systems. Similarly, direct and indirect costs of tobacco usage have totaled 1.852 trillion dollars or 1.8% of the global gross domestic product.² In Qatar, the most common forms of tobacco are cigarettes (42.8%), waterpipes (20.9%), and medwakh (3.2%), according to a 2019 study of governmental employees and university students. Alternative tobacco products like smokeless tobacco (1.9%), electronic cigarettes (2.0%), and heat-not-burn products (0.3%) were less frequently used.³ Moreover, several effective tobacco control measures were adopted by Qatar, including tobacco taxes, the designation of smoke-free areas, anti-smoking health awareness, and the expansion of free or subsidised tobacco-dependence treatment services, such as smoking cessation clinics at Primary Health Care centres and Hamad Medical Corporation Tobacco Control Center.³ These clinics offer tailored support through behavioural counselling and pharmacotherapy, including Varenicline and Nicotine Replacement Therapy (NRT). A study conducted among 759 smokers who attended these clinics between January 2019 and June 2020 revealed a 30-day quit rate of 32.4% at six months follow-up.⁴

Electronic nicotine delivery systems (ENDS) and electronic non-nicotine delivery systems (ENNDS) heat liquids to produce aerosols for inhalation. ENDS contain nicotine, while ENNDS are marketed as nicotine-free, though this may not always be accurate. These systems come in various forms, such as e-cigars, e-pipes, and e-hookahs, with e-cigarettes being the most widely used type.⁵ ENDS is an electronic system that delivers nicotine by aerosol upon heating a nicotine-containing solution.⁶ The product is delivered through various devices (disposable, rechargeable, modular), flavours, and nicotine content typically ranging between 3 and 36 mg/mL.⁷

The use of electronic cigarettes has increased during the last decade. A review of surveys from 2019 about the prevalence of electronic cigarette use among the general adult and young populations in Europe, found that the prevalence of current electronic cigarette use ranged from 0.2% to 27%, ever-use ranged from 5.5% to 56.6%, and daily use ranged from 1% to 2.9%.⁸

Advocates of electronic cigarettes claim that the absence of any combustion process makes them safer than classical cigarettes. Subsequently, it has been suggested that it is a candidate tool for smoking cessation assistance among current smokers.^9–12 On the other hand, evidence in the literature remains questionable as to whether electronic cigarettes can serve the means mentioned above or not. Moreover, the health effects of such devices on consumers and the public remain understudied.¹³ For example, it has been reported that using electronic cigarettes hurts wound healing among surgical patients.¹⁴ However, the evidence was limited in any associated long-term effects or carcinogenic risks. Additionally, the passive exposure to vapour from electronic cigarettes, known as Second-hand aerosol, is also not benign.¹⁵ A systematic review found that second-hand aerosol contains elevated nicotine levels and other compounds, such as formaldehyde and metals.¹⁶

Reviewing the literature consistently shows a positive association between electronic cigarette use and an increased risk of cigarette smoking onset.^17–19 A potential explanation for this link is the “common liability” theory, which posits that the association is due to a shared predisposition for using tobacco products rather than a direct causal relationship.^20,21 This predisposition, influenced by genetic and behavioural factors, may lead individuals to use various substances, including tobacco and psychoactive products. Supporting evidence shows that the use of other tobacco products (eg, cigars, hookahs) or substances like alcohol and cannabis also predicts cigarette smoking onset, with the risk increasing as more types of tobacco products are used.^19,20,22,23

On the other hand, the World Health Organization (WHO) have flagged several concerning factors, such as the safety of these devices, their impact on nicotine dependence, and their relation to future tobacco use.²⁴ Moreover, in concurrence with this increasing use of electronic cigarettes among smokers of different age groups, ninety-eight nations have developed relevant national regulations on the sale, advertisement, packaging, product regulation, taxation, and surveillance.²⁵ Qatar signed and ratified the WHO Framework Convention on Tobacco Control (FCTC) in 2004, and to date, the ongoing implementation of the treaty is high. The updated law no.10 in 2016 on tobacco control prohibits the country’s manufacturing, importing, selling, displaying and distributing electronic cigarettes.^26,27 However, despite these efforts, a recent study that investigated the use, knowledge, and attitudes toward electronic cigarette usage among National University students in Qatar found the prevalence of electronic cigarette use to be 14%.²⁸

Data about smokers’ knowledge, attitudes, and practices regarding electronic cigarettes and their associated factors is limited in Qatar. The current research aimed to Determine the knowledge, attitude, and practice regarding electronic cigarettes among smokers attending the smoking cessation services in Hamad Medical Corporation. This will help identify any existing gap among that population and guide future intervention strategies.

Materials and Methods

Study Design, Setting and Population

We conducted a telephone-based analytical cross-sectional study in the smoking cessation clinics under the Tobacco Control Centre (TCC), a WHO collaborating centre for treating tobacco dependence at Hamad Medical Corporation. The centre treats approximately 1200 new patients annually, each attending around six appointments.²⁹ The health services these clinics provide are either subsidised or free to the entire registered population, both nationals and expatriates. Therefore, the target population included current smokers aged 18 and above, either Arabic or English speakers, who attended those clinics by phone during the study period from September to December 2020. In this study, no exclusion criteria were applied. All participants who met the initial inclusion criteria were enrolled.

Study Procedure

After obtaining the study approval from the Institutional Review Board (IRB) at Hamad Medical Corporation (MRC-01-19-464), and since all the smoking cessation clinics were included in the current study, a systematic random sampling technique of smokers was employed to enrol the required number of eligible participants. Thus, a list of the smokers attending each of these clinics was obtained monthly from the TCC-HMC administration and was sampled accordingly, where every third smoker was contacted via telephone to participate in the study until the sample size was fulfilled. After explaining the aim and purpose of the study, verbal consent was elicited, and if consenting, the participant underwent the telephonic interview-based questionnaire for an average of 5–10 minutes.

The sample size was calculated using the following formula:³⁰ N = Z ² P (1 - P)/ d ² where N represents the sample size, Z is the confidence level statistic (1.96 for the 95% confidence interval), d is the precision (0.05), and P is the expected prevalence (we used the prevalence of knowledge about electronic cigarettes of 49%, which was obtained from Qatar’s earlier Global Adult Tobacco Survey 2013).³¹ Thus, the calculated sample size was 384. Considering an expected non-response rate of 20%, the estimated sample size based on this calculation was 460.

Study Instrument

The researcher developed a structured questionnaire, and its face validity was established through an extensive literature review and consultation with experts from the TCC. We used a questionnaire comprised of forty-two items, including seven on socio-demographic factors, nine on the participants’ smoking history, and twenty-six on smokers’ knowledge, attitude, and practice (KAP) towards electronic cigarettes. The KAP items were divided into eight items, ten items, and eight items among the knowledge, attitude, and practice components. The format of the questions varied between multiple choice, dichotomous (yes/no), closed, and Likert scale questions. The questionnaire was prepared in English and translated into Arabic with a bilingual translator’s back translation. Before data collection, a pilot study was conducted among a convenient sample of 20 participants from one TCC clinic; the piloted 20 participants were omitted from the study database.

Outcome Measures

Variables Regarding the Knowledge of Electronic Cigarettes

The participants’ knowledge of electronic cigarettes was evaluated through eight questions, six of which (except questions 3.b., 3.c.) were scored. Each correct answer was rewarded one point, and the total continuous knowledge score was 6. Thus, the participants were categorised as having “poor knowledge” if their total score was ˂3 and “good knowledge” if the total score was ≥ 3.

Variables Regarding the Attitude Towards Electronic Cigarettes

The respondents’ attitude towards electronic cigarettes was assessed through ten questions, most of which included a four-point Likert scale answer between “strongly agree”, “agree”, “disagree”, and “strongly disagree”. Overall, the attitude score was calculated through individual points granted to each question with a total attitude continuous score of +17 and a minimum of −17. Based on the median split method, those with scores below 0 were categorised as having a negative attitude, while those with scores 0 and above were categorised as having a positive attitude.³²

Variables Regarding the Practice of Electronic Cigarettes

Regarding the practice of participants, it was assessed through multiple indicators,^33,34 such as ever-user of electronic cigarettes (tried or used an electronic cigarette in their life), current user of electronic cigarettes (having used an electronic cigarette in the past 30 days), and daily user of electronic cigarettes (reporting daily use of electronic cigarettes).

Data Analysis

Descriptive statistics regarding mean and standard deviation (SD) for quantitative variables and frequencies and percentages were calculated for categorical variables whenever appropriate. The Chi-square test (X2) was used to assess the association between the independent variables and the outcome measures with the Monte Carlo method to accommodate independent variables with more than two categories. Finally, variables who showed significance in the bivariate analysis (p value≤ 0.05) were entered in the multivariate logistic regression models to calculate the adjusted odds ratio (aOR) with their corresponding 95% confidence interval (CI), in order to assess the predictors for the outcome. However, the analysis was not pre-registered, and the results should be considered exploratory.

Results

During the data collection period (September to December 2020), we approached 1188 adult current smokers to participate in the study. Of these, 314 individuals declined to participate, 421 did not respond to our calls, and 453 agreed to participate.

Socio-Demographic and Smoking-Related Characteristics

Participants’ mean age (± SD) was 38.9 ± 8.9 years. Most participants (95.1%, n=429) were men, with 77.9% being married (n=353). Furthermore, 64.7% held a university degree (n=293), and 87% were employed (n=394). Income levels ranged from less than 10,000 to 30,000 Qatari Riyals per month. The mean duration (± SD) of smoking was 18.5 ± 9.1 years. Among those who smoked daily (92.5%, n=419), the mean number (± SD) of cigarettes per day was 15.3 ± 10.8.

Regarding nicotine dependence based on the Fagerström Test for Nicotine Dependence (FTND), 36% (n=163) had low dependence (scores 1–2),³⁵ while 5.5% (n=25) were highly dependent (scores ≥ 8).³⁵ Concerning FTND responses, 48.3% (n=219) reported smoking ten or fewer cigarettes daily (FTND −1). For the duration before smoking the first cigarette of the day (FTND −2), 36.0% (n=163) reported waiting more than sixty minutes after waking up. When asked about the most challenging cigarette to quit (FTND −3), participants were almost equally split between the waking up cigarette (50.1%, n= 227) and any other cigarette (49.9%, n=226). Additionally, (62.7%, n=284) denied smoking more frequently during the first hours of the day than the rest of the day (FTND −4), while (59.6%, n=270) reported stopping smoking when very ill (FTND −5). Furthermore, (69.3%, n=314) denied having difficulty refraining from smoking in prohibited areas (FTND −6), as shown in Table 1.

Table 1 Smoking Characteristics of Adult Current Smokers at the Tobacco Control Center-Hamad Medical Corporation in Qatar During 2020 (n=453)

Participants’ Knowledge of Electronic Cigarettes

The participants exhibited a mean total knowledge score (±SD) of 3.13 (±1.7) regarding electronic cigarettes. The majority (60.2%, n=259) demonstrated good knowledge, scoring three or higher. Nearly all participants (94.9%, n=430) were aware of electronic cigarettes, yet (59.6%, n=255) rated their knowledge as minimal. Interestingly, (72.5%, n=307) relied on family members or friends for information on electronic cigarettes.

Regarding specific knowledge items, 51.2% knew electronic cigarettes were available in multiple forms (n=220). However, a significant proportion remained uncertain whether electronic cigarettes contained tobacco (58.6%, n=252) or carcinogens (52.8%, n=227). Furthermore, 59.5% (n=256) of participants needed to be aware of the second-hand aerosol concept. Table 2 presents a detailed breakdown of these findings.

Table 2 The Knowledge of Electronic Cigarettes Among Current Smokers at the Tobacco Control Center-Hamad Medical Corporation in Qatar During 2020 (n=453)

Participants’ Attitudes Towards Electronic Cigarettes

The participants’ mean attitude score was −2.9 (±4.9), indicating a prevailing negative sentiment towards electronic cigarettes among more than two-thirds (69.0%, n=289) of smokers, with scores falling below zero, as seen in Figure 1. Nearly half of the respondents (48.1%, n=219) reported having experimented with electronic cigarettes.

Figure 1 Distribution of smokers by attitude towards e-cigarettes (n=419).

Opinions regarding electronic cigarettes were divided: 52.8% agreed or strongly agreed that they were addictive (n=235), while 52.2% believed they could assist in smoking cessation (n=236). However, a significant majority (84.5%, n=381) perceived second-hand vapour as detrimental to human health, contrasting with 36.4% who considered electronic cigarettes less harmful than traditional cigarettes (n=165). Regarding social perceptions, (55.8%, n=252) of participants agreed or strongly agreed that electronic cigarettes enhanced social acceptance. Opinions on whether electronic cigarettes provided pleasure were evenly split, with 49% in support (n=213) and 51% opposed (n=222). Regarding usage regulations, 65.1% of respondents were against using electronic cigarettes in smoke-free areas (n=295), while 83.6% supported electronic cigarette regulation (n=377). Additionally, 86.3% of participants opposed the promotion of electronic cigarettes (n=390).

Participant’s Use of Electronic Cigarettes

Almost half (48.3%, n=219) of the people in the study said they had tried using electronic cigarettes before. Among those who had tried them, more than half (55.2%, n=121) used them to try to quit smoking. However, only a few (3.2%, seven people) had used them in the past month.

Out of those seven current users, all of them considered themselves electronic cigarette users, and on average, they had been using them for about 18 months. Two of them knew how much nicotine they were using (between 1 to 11 milligrams), but the others were not sure. A few of the current users (14.3%, which is one person) said they used electronic cigarettes every day. Additionally, about a quarter (23.8%, which is 108 people) of the smokers in the study said they were often around people who used electronic cigarettes.

Among smokers who used electronic cigarettes to try to quit, about a quarter (23.1%, which is 28 people) were successful. Still, nearly half (46.3%, which is 56 people) continued to smoke regular cigarettes alongside electronic cigarettes. As appeared in Table 1.

Factors Associated with the Knowledge, Attitude, and Practice of Electronic Cigarettes

The level of knowledge varied significantly across different age groups and marital statuses (p = 0.03) and (p = 0.013), respectively. A poor level of knowledge was most prevalent among participants aged 40-59 years (49.7%). Married smokers were more likely to have poor knowledge compared to their single, divorced, or widowed counterparts, with 85.4% of married participants showing poor knowledge and 73% of them showing good knowledge.

Furthermore, there was a statistically significant difference regarding the status of knowledge towards electronic cigarettes among participants of different educational backgrounds, where those with higher education (university degree) were more likely to have a good level of knowledge (72.6% of them with a good knowledge score vs 57.3%of them with poor knowledge) and those with lower education attainment were more likely to have poor level of knowledge (p=0.007). Similarly, the participants’ income was significantly associated with their level of knowledge. Those with a higher income (≥ 30.000 QR/ month) were more likely to have a good level of knowledge about electronic cigarettes (51.6% vs 40.4%) than those with a lower income (<10.000 QR/month, 16.1% vs 8.5%, p=0.033), as seen in Table 3. However, there was no statistically significant association between the participant’s background characteristics and Attitude towards electronic cigarettes.

Table 3 The Association Between the Participants’ Background Characteristics and Their Knowledge of Electronic Cigarettes in Qatar During 2020

The ever use of electronic cigarettes was most prevalent among participants with high education (university degree, 72.1%). In addition, the participants’ income was significantly associated with their ever use of electronic cigarettes. Those with income level (10.000 - < 30.000QR/month) were more likely to have used an electronic cigarette (44.7%), as appeared in Table 4.

Table 4 The Association Between the Participants’ Background Characteristics and Their Ever Use of Electronic Cigarettes in Qatar During 2020

The Determinants of Good Knowledge and Use of Electronic Cigarettes

Concerning the participant’s background characteristics and a good knowledge of electronic cigarettes, having a high income (≥ 30.000 QR) was the only significant variable in the multiple logistic regression analyses, as seen in Table 5.

Table 5 Multiple Logistic Regression to Assess the Predictors of Good Knowledge on Electronic Cigarettes Among Adult Current Smokers at the Tobacco Control Center-Hamad Medical Corporation in Qatar During 2020 (N=453)

Concerning the participants’ background characteristics and having ever used an electronic cigarette, having a high income (≥ 30.000 QR) was the only significant variable detected in the multiple logistic regression analysis, as seen in Table 6.

Table 6 Multiple Logistic Regression to Assess the Predictors of Ever Use of Electronic Cigarettes Among Adult Current Smokers at the Tobacco Control Center-Hamad Medical Corporation in Qatar During 2020 (N=453)

Discussion

The novelty of this research lies in its comprehensive assessment of the knowledge, attitude, and practice regarding electronic cigarettes among current smokers attending smoking cessation clinics in Qatar. Unlike previous studies, this study provides a focused examination of a specific population in a unique context—smokers actively seeking to quit within a tobacco control centre in Qatar. Additionally, it explores the key factors associated with good knowledge and ever-use of electronic cigarettes. These findings offer new insights into how socio-demographic factors influence electronic cigarette awareness and behaviour in this population, contributing to the limited literature on electronic cigarette use in the region.

Remarkably, while nearly all individuals were aware of electronic cigarettes, a substantial proportion demonstrated limited knowledge, with 60.2% scoring ≥3 on the knowledge scale. Moreover, the study revealed prevalent negative sentiments toward electronic cigarettes, with a mean attitude score of −2.9. Intriguingly, despite these negative perceptions, almost half (48.3%) of the participants reported having tried electronic cigarettes, with 55.2% of them employing them as aids for smoking cessation. Importantly, higher income levels were associated with better knowledge about electronic cigarettes and a higher likelihood of having experimented with them.

The study’s findings indicate that a significant percentage of participants (60.2%) exhibited a good understanding of electronic cigarettes, contrasting with earlier research conducted among the Lebanese community, where only 36.7% of the participants demonstrated similar knowledge.³⁶ Additionally, other studies among Malaysian adults³⁷ and Pakistani university students³⁸ revealed comparable levels of knowledge, with nearly half reporting good understanding. Furthermore, most participants in the current study reported having heard about electronic cigarettes, a trend mirrored in online surveys of Croatian adults³⁹ and Pakistani university students,³⁸ where high awareness levels were observed. Conversely, studies among adults in rural China⁴⁰ and Jordanian adults⁴¹ showed lower levels of awareness.

The primary source of knowledge on electronic cigarettes for participants in the current study was identified as family members or friends, consistent with findings from a global online survey by Italian researchers,⁴² and the survey among university students in Pakistan.³⁸ However, significant proportions of participants in the current study were unaware of certain aspects of electronic cigarettes, such as their nicotine content and the presence of carcinogens, which aligns with findings from other studies.^36,43–45 Moreover, when asked about the composition of electronic cigarette vapour, a considerable portion of participants lacked knowledge, similar to findings from a national survey of American adults,⁴⁶ and the online survey of Saudi adults,⁴³ suggesting increased awareness and education on these topics across different populations.

Regarding attitude, our findings echo the results from the Lebanese community survey, where the majority (94.71%) shared similar sentiments.³⁶ Regarding perceptions of addiction, a lower percentage (35%) of Lebanese adults believed electronic cigarettes were addictive.³⁶ Similarly, Differing perspectives were noted among the Saudis,⁴⁷ and Chinese university students⁴⁵ regarding addiction. Additionally, a sizable portion of participants believed electronic cigarettes could aid in smoking cessation, aligning with perceptions observed among Lebanese pedestrians³⁶ and the Saudi university students.⁴⁷ However, Egyptian adults held a more doubtful perspective of electronic cigarettes’ effectiveness as quitting tools.⁴⁸ Concerning Second-hand aerosol ‘s harm perception, varied opinions were noted among the Egyptians.,⁴⁹ and Pakistani surveys,³⁸ regarding the relative harm of electronic cigarettes compared to traditional cigarette.

While a significant portion of smokers in our study believed that electronic cigarettes enhance social acceptability, other surveys have found less consensus on this matter. For example, the Lebanese community-based survey showed fewer participants (43%) viewed electronic cigarettes as socially acceptable.³⁶ Similarly, Saudi university students had differing opinions, with a substantial minority agreeing that electronic cigarette use boosts popularity among peers.⁴⁷ Furthermore, attitudes towards the pleasure derived from using electronic cigarettes varied among our study participants, mirroring findings from the Lebanese survey.⁴⁷ Regarding regulation and promotion, our study aligned with other studies in advocating for strict regulations on electronic cigarettes.^41,47

In our investigation, around half of the smokers indicated previous use of electronic cigarettes, mirroring similar trends observed in a prior national survey in the United States.⁴⁶ Similarly, a notable segment of Saudi university students employed electronic cigarettes as a cessation aid.⁴⁷ However, the prevalence of electronic cigarette usage was lower among respondents in the surveys conducted in Lebanon,³⁶ and Pakistan,³⁸ with approximately one-tenth of smokers reporting electronic cigarette use. Conversely, only a minority of Chinese university students reported ever using electronic cigarettes.⁴⁵ Among users, motivations for electronic cigarette usage varied among the studies, with a significant portion aiming to quit smoking altogether.^36,43 Nonetheless, many users engaged in dual use, concurrently using both electronic cigarettes and traditional tobacco products.^41,47 These findings underscore the multifaceted nature of electronic cigarette utilisation, highlighting both its potential as a tool for smoking cessation and the prevalence of simultaneous tobacco use among electronic cigarette users.

The study highlights the associations between age, education, income, and awareness levels, emphasising the role of socioeconomic status in accessing information and fostering awareness. Similar findings were observed in the Egyptian study.⁴⁹ These results may be attributed to the increased curiosity of younger age groups toward new devices and their higher use of the Internet and social media, where electronic cigarettes are marketed. Moreover, highly educated individuals tend to be proficient with technology and have increased access to information sources due to their higher literacy levels.⁴⁹ Additionally, having a higher financial status puts these participants in a social circle that possibly utilises electronic cigarettes, given their higher cost in comparison to regular cigarettes.

Furthermore, the study identified a poor level of electronic cigarette knowledge among married participants. In contrast, a similar study has determined that unmarried individuals suffer a lower level of health and higher mortality risk than their married peers.⁵⁰ Moreover, a contradiction arises regarding the association between gender and electronic cigarette knowledge, as the current study did not find a significant gender disparity, in contrast to prior research that has suggested gender-based differences in awareness levels.³⁸ This can be due to the limited number of female participants in the study in the context of the cultural biases that prohibit women from smoking or the social stigma that makes seeking smoking cessation more difficult.

Our study revealed that participants with higher education demonstrate a greater inclination towards using electronic cigarettes, echoing findings from similar research among Malaysian university students.⁴⁴ However, contradictory results emerged from a survey of American adults, which failed to establish significant links between background characteristics and electronic cigarette use.⁵¹ In Qatar, where electronic cigarettes are prohibited, their purchase primarily occurs abroad due to legal constraints and higher costs compared to traditional tobacco products. The association between electronic cigarette use and higher income may stem from more significant financial resources for travel and access to online information among individuals with higher education levels, reflecting broader socioeconomic factors shaping consumption behaviors. Incorporating the findings from this study, the Ministry of Health and other stakeholders engaged in combating tobacco use can leverage several critical insights to inform policy and intervention strategies. First, the significant knowledge gaps revealed, especially concerning the health risks of electronic cigarettes, highlight the need for targeted educational campaigns that address these misconceptions among smokers. Given the high awareness but limited understanding of e-cigarette content and risks, the Ministry could develop public health initiatives that emphasise the potential harms of both direct use and second-hand vapour exposure. Moreover, the study’s identification of higher income and education levels as predictors of better e-cigarette knowledge suggests that interventions should be tailored to reach lower-income and less-educated smokers, who may be at a greater risk of using e-cigarettes without fully understanding the associated risks. Finally, given the substantial proportion of dual users (those using both traditional and electronic cigarettes), regulatory bodies might consider stricter regulations and controls on e-cigarette marketing and availability, particularly in Qatar, where their sale is prohibited, but usage persists. These steps could foster more comprehensive tobacco control strategies that align with national health priorities.Future research should explore the long-term effects of e-cigarettes and healthcare providers’ knowledge to improve cessation efforts. Stronger regulations and public awareness campaigns are needed to curb use, especially among vulnerable populations.

Strengths

To our knowledge, this was the first national study in Qatar to examine e-cigarette knowledge, attitudes, and use. A key strength of the study was the use of random sampling, which allowed for a representative sample of the general population, minimizing selection bias. Additionally, achieving the calculated sample size ensured the study’s power and the reliability of its findings. The interview-based method of data collection further enhanced the completeness and accuracy of the information gathered. The use of a structured questionnaire, with established content and face validity, effectively assessed the three key domains: knowledge, attitudes, and practices. Moreover, conducting the study at the Tobacco Control Center, a government-subsidized referral center for smokers throughout Qatar, strengthened the external validity and generalizability of the results.

Limitations

Despite its strengths, the study has certain limitations. The cross-sectional design does not allow for conclusions about causality between explanatory variables and e-cigarette knowledge, attitudes, and use. Additionally, the results provide a snapshot of the target population at the time of data collection, which may not capture the dynamic nature of these behaviors over time. Social desirability bias may have also affected the responses due to the use of an interview-based questionnaire in a healthcare setting, leading some participants to potentially misreport their true behaviors or attitudes. Finally, the relatively small number of current (n=7) and daily (n=1) e-cigarette users limited the ability to conduct further bivariate and multivariate analyses in this subgroup.

Conclusion

Despite widespread awareness, significant gaps persist in understanding their contents and potential health implications. Negative attitudes towards electronic cigarettes prevail; however, a substantial portion of participants have experimented with them. Demographic factors such as age, marital status, educational background, and income level were found to be significantly associated with electronic cigarette knowledge and usage. These findings emphasise the need for targeted educational initiatives and regulatory interventions to address misconceptions and mitigate potential risks associated with electronic cigarette use among smokers in Qatar.