Abstract
Background
To investigate the association between electronic cigarette (e-cig) use and smoking cessation among smokers who called the Youth Quitline in Hong Kong.
Methods
This longitudinal study collected data on youth smokers’ (N=189) use and perception of e-cigs, conventional cigarette smoking behavior, and sociodemographic characteristics at baseline. Self-reported past 7-day point prevalence of abstinence (PPA) was assessed in the 6-month telephone follow-up. Linear and logistic regressions were used to estimate the association of e-cig use with quitting cigarette smoking and other cessation-related outcomes.
Results
E-cig users were younger, more addicted to nicotine, and less ready to quit (all P<0.05) at baseline. The PPA rate was lower in e-cig users (13.4% vs. 20.8%) at follow-up. E-cig use was not associated with PPA at the 6-month follow-up (odds ratio (OR): 0.56, 95% CI: 0.24 to 1.35), but it was nonsignificantly related to more cessation attempts (raw coefficient (b): 1.26, 95% CI: −0.13 to 2.66). Among those who still smoked, e-cig use was nonsignificantly associated with intention to quit smoking (OR: 0.55, 95% CI: 0.15 to 2.05), nicotine dependence (Fagerström score, b: 0.75, 95% CI: −0.39 to 1.90), and perceptions on quitting cigarette smoking.
Conclusion
E-cig use was not associated with successful smoking cessation among Youth Quitline smokers.
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Acknowledgements
We thank the respondents for participating in the study. The Youth Quitline is funded by Tobacco Control Office, Department of Health, Government of Hong Kong SAR.
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Wang, M., Li, W., Wu, Y. et al. Electronic cigarette use is not associated with quitting of conventional cigarettes in youth smokers. Pediatr Res 82, 14–18 (2017). https://doi.org/10.1038/pr.2017.80
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DOI: https://doi.org/10.1038/pr.2017.80
