Does Electronic Cigarette Use Predict Abstinence from Conventional Cigarettes among Smokers in Hong Kong?

Socrates Yong-da Wu, Man Ping Wang, William H. Li, Antonio C. Kwong, Vienna W. Lai and Tai Hing Lam
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Socrates Yong-da Wu: School of Nursing, University of Hong Kong, Hong Kong, China
Man Ping Wang: School of Nursing, University of Hong Kong, Hong Kong, China
William H. Li: School of Nursing, University of Hong Kong, Hong Kong, China
Antonio C. Kwong: Hong Kong Council on Smoking and Health, Hong Kong, China
Vienna W. Lai: Hong Kong Council on Smoking and Health, Hong Kong, China
Tai Hing Lam: School of Public Health, University of Hong Kong, Hong Kong, China

IJERPH, 2018, vol. 15, issue 3, 1-10

Abstract: Objectives: To investigate the effects of ever use of electronic cigarettes (ECs), many of which lack nicotine, on abstinence from convention cigarettes among Hong Kong adult smokers. Methods: We collected data from 956 daily smokers in 2014–2015 regarding ever EC use and smoking behaviors at baseline, any and past 30-day EC use at the 3-month follow-up. Outcomes measured at 6 months included past 7-day point prevalence abstinence (PPA), biochemically validated quitting, smoking reduction (≥50% from baseline) and cessation attempt. Logistic regression yielded adjusted odds ratios (AOR) for quitting in relation to EC use, adjusting for socio-demographic characteristics and smoking profile. Complete case, missing observation as smoking and propensity score analyses were conducted. Results: By complete case, ever EC use at baseline did not predict self-reported PPA (AOR 0.99, 95% CI 0.57–1.73), biochemically validated quitting (AOR 1.22, 95% CI 0.64–2.34), cessation attempt (AOR 0.74, 95% CI 0.48–1.14), or smoking reduction (AOR 0.89, 95% CI 0.54–1.47). EC use during the first 3 months did not predict quitting (AOR 1.02, 95% CI 0.22–4.71). Similar results were observed for missing observations as smoking and propensity score analyses. Conclusions: Any use of ECs, many of which lack nicotine, did not predict smoking abstinence among Hong Kong adult smokers.

Keywords: electronic cigarettes; smoking cessation; nicotine; conventional cigarettes (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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