Prevalence and characteristics of e-cigarette users among Malaysian current and ex-smokers

INTRODUCTION

Electronic cigarettes (ECs) are new devices that have been accepted widely by both smokers and non-smokers. However, the evidence on EC used in Malaysia is scarce. The objective of this study was to determine the prevalence of EC use and the socio-demographic and smoking characteristics associated with current EC use among Malaysian current and ex-smokers.

METHODS

This was a sub-analysis of data from a cross-sectional, national-population- based EC study conducted from May to June in 2016 in Malaysia. A detailed description of the sampling methods can be found in the National E-cigarette Survey (NECS) 2016 report. Briefly, data were obtained from 1396 individuals who had ever been smokers, i.e., 957 (68.6%) current smokers and 439 (31.4%) ex-smokers.

RESULTS

Current EC use was found predominantly among current smokers (8.0%) as compared with ex-smokers (4.3%). Among current smokers, the main reasons given for smoking ECs were wanting to try it (44.7%), followed by intention to quit tobacco smoking (15.8%) and to reduce tobacco smoking (10.5%). Using multiple logistic regression analysis, we found that among current smokers, current EC users were more likely to be younger, i.e., 18-44 years (aOR= 4.83, 95% CI= 1.97-11.86, p=0.001), urban residents (aOR= 1.89, 95% CI= 1.15-3.11, p=0.012), single/ divorced/ widowed (aOR= 2.11, 95% CI= 1.24-3.61, p=0.006) and students (aOR= 2.25, 95% CI= 1.01-5.01, p=0.048). Among exsmokers, only younger respondents (18-44 years old) was reported as being more likely to be current EC users (aOR= 3.81, 95% CI= 1.14-12.76, p=0.030).

CONCLUSION

This study showed that currently using and ever having used ECs were more prevalent among current smokers. The reasons given for initiating EC use among current smokers were mainly wanting to try it, followed by intention to quit and to reduce tobacco smoking. Current EC use appears to be common among current smokers who are younger, urban residents, single/divorced/widowed and students. Therefore, EC cessation intervention strategies and policies should target these high-prevalence groups.

Motivations for Current E-Cigarette Use Among Adult Smokers in Malaysia

Background: Recommendations from WHO regarding the comprehensive ban on tobacco advertisements, promotions and scholarships (TAPS) have recently caused tobacco companies in shifting their market strategies to focus on promoting unregulated devices such as electronic cigarettes (ECs) and vapes. Aim: This study aims to explore the motivations of EC use among dual users and its associations with sociodemographic factors and smoking related characteristics under different regulatory environments in Malaysia. Methods: A total of 5823 dual users was collected using a multistage sampling study design. Data collection was conducted through intercept face-to-face interviews within 3 waves; wave 1 (May-September 2016), wave 2 (December 2016 - April 2017) and wave 3 (May-August 2017). The samples were drawn from 5 streets randomly (two in hotspot and three in nonhotspot locations) within stratified urban and rural areas in 14 states of Malaysia. Every fifth person passing an interview station in each street was approached. All statistical tests were conducted using PASW 18. Results: The top four self-reported motivations of using EC by dual users included “tasted better than conventional cigarettes” (85.1%), “to reduce the number of cigarettes smoked” (72.9%), “to quit smoking” (63.5%) and “increase price of cigarette taxes” (62.9%). Based on a multivariate analysis, respondents from states that have no current restrictions toward the sale and usage of ECs and who use ECs less than weekly (Adj.OR=2.54; 95% CI=1.93-3.34), weekly (Adj.OR=2.22; 95% CI=1.72-2.85) and daily users (Adj.OR= 1.77; 95% CI=1.36-2.31) were more likely to use ECs due to its better taste as compared with those who use ECs less than once a month. In states that have banned the sales and usage of ECs, there was a significant association between daily users of ECs and the four primary motivations. It was found that an increasing amount of cigarettes smoked per day (Adj.OR=2.46; 95% CI=1.59-3.81) had significantly influenced smokers in these states to more likely use ECs due to the increase price of cigarette tax. Conclusion: This study was conducted to show associations between smoking characteristics, EC use and self-reported motivations under different regulatory environments in Malaysia. Frequency of EC use was significantly associated with these self-reported motivations. Further research should be conducted to monitor EC use by Malaysians as well as to contribute to the formulation of EC policy in Malaysia.

Self-Reported of Awareness, Trial and Current Use of Electronic Cigarettes (ECS) Among of Adult Smokers in Malaysia

Background: In many parts of the world, E-cigarette (EC) devices are becoming popular and an increasing trend in its usage especially among young people and adult smokers. Aim: To examine the self-reported awareness, trial and current use of ECs among current smokers and to determine the predictors associated with the outcomes. Methods: A total of 40,000 current smokers aged 18 years and above were recruited through intercept face-to-face interview in wave 1 (May-September 2016), wave 2 (December 2016-April 2017) and wave 3 (May-August 2017). The samples were drawn from 5 streets randomly (two in hotspot and three in nonhotspot) within stratified urban and rural areas in 14 states of Malaysia. Respondents were recruited using systematic sampling. Every fifth person passing an interview station in each street was approached. Descriptive analysis and multivariate logistic regression were applied by using PASW 18. Results: Overall, 93% were aware of ECs, 19.9% were ECs trials and 14.6% were current users. Multivariate logistic regression shows that those states with no ban of ECs sales were more likely and significantly associated with these outcomes compared with those in states that this device has already been banned. Those who believe that ECs are “less harmful” (AOR=6.28; 95% CI=5.79-6.81, P < 0.001; AOR=4.84; 95% CI=4.12-5.69, P < 0.001) and “equally harmful” (AOR=2.06; 95% CI=1.91-2.22, P < 0.001; AOR=2.25; 95% CI=1.93-2.62, P < 0.001) were significantly associated with EC trials and current use of ECs respectively. In addition, intention to quit smoking (AOR=2.91; 95% CI=2.72-3.13) was also directly associated with EC trials. Conclusion: Awareness, trials and current use of ECs are likely due to the banning regulation implemented in specific states and strong belief that ECs is less harmful to health. Hence, this should be considered in the formulation of ECs policy in Malaysia.