Tobacco quitting characteristics and e-cigarette vaping among Korean ever smokers
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Department of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
Publication date: 2019-10-12
Tob. Induc. Dis. 2019;17(Suppl 1):A18
The objective of our study was to assess the relationship between quit attempts, quit intention, and quit duration of tobacco smoking and electronic cigarette (e-cigarette) vaping among Korean adults.

We used the nationwide cross-sectional data of the Korea National Health and Nutrition Examination Survey (KNHANES) from 2013 to 2015. Of the total participants (N=22,948), 3,823 of adult (≥ 19 years old) ever smokers were eligible. The main outcome was e-cigarette lifetime vaping, and the predictors included cigarette quit attempts, quit intention, and quit duration. We performed statistical analysis with weighted percentage (%), the χ2 test with a p-value of significance level of 0.001, and the multiple logistic regression analysis presented as Odds Ratio (OR) with a 95% confidence interval (CI).

A total of 25.6% of Korean ever smokers have experienced e-cigarettes. Factors related to the lifetime vaping of e-cigarettes were younger age, currently smoking and heavier smoking (p < .001). Gender was not associated. The e-cigarette ever vapers more likely to have attempted to quit (OR = 2.45, 95% CI = 1.69-3.53) than never vapers. There was not significant difference in intention to quit (OR = 1.61, 95% CI = 0.98-2.66) according to e-cigarettes vaping. The e-cigarette ever vapers more likely to quit for a short period (<6m: OR = 2.00, 95% CI = 1.21-3.32), but less likely to quit for a long period (3y≤: OR = 0.27, 95% CI = 0.15-0.48).

Although the e-cigarette vaping may be closely related to temporary abstinence from smoking, it may not lead to stable smoking cessation. Thus, considering e-cigarettes as an aid for effective smoking cessation could be misleading.

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