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Epidemiol Health > Volume 43; 2021 > Article
Epidemiology and Health 2021;43: e2021048-0.
DOI: https://doi.org/10.4178/epih.e2021048    Published online Aug 3, 2021.
Effect of tobacco outlet density on quit attempts in Korea: a multi-level analysis of the 2015 Korean Community Health Survey
Jaehyung Kong1  , Sung-il Cho2 
1National Tobacco Control Centre, Korea Health Promotion Institute, Seoul, Korea
2Department of Public Health Sciences, Graduate School of Public Health and Institute of Health and Environment, Seoul National University, Seoul, Korea
Correspondence  Sung-il Cho ,Tel: +82-2-880-2717, Email: persontime@hotmail.com
Received: Feb 24, 2021  Accepted after revision: Aug 3, 2021
This study aimed to examine whether the regional density of tobacco outlets in Korea was associated with the likelihood of attempting to quit among smokers
This study was designed as a secondary data analysis of a cross-sectional study. Data from the 2015 Korean Community Health Survey and tobacco outlet registrations in 17 metropolitan cities and provinces with 254 communities in Korea were used for the analysis. In total, 41,013 current smokers (≥19 years of age) were included. Multi-level logistic regression analysis was conducted to investigate regional differences associated with smokers’ attempts to quit and to evaluate the effects of individual and regional characteristics on quit attempts.
Higher tobacco outlet density was associated with lower odds of attempting to quit. Smokers who resided in districts with the highest tobacco outlet density were 18% less likely to attempt quitting (odds ratio, 0.82; 95% confidence interval, 0.70 to 0.98) than smokers who resided in the regions with the lowest tobacco outlet density (intraclass correlation coefficient, 0.030).
This study showed that quit attempts were related to community-level factors, such as tobacco outlet density, as well as other individual factors. These findings support the implementation of national policies restricting the number of tobacco outlets within communities or zones and limiting tobacco marketing in tobacco outlets.
Keywords: Tobacco, Tobacco product, Tobacco industry, Smoking cessation, Multilevel analysis


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