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2 "Jaehyung Kong"
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Original article
Quit intention by tobacco use type among adults using cigarettes and heated tobacco products: findings from the 2024 Korea Community Health Survey
Jaehyung Kong, Heewon Kang, Eunsil Cheon, Sung-il Cho
Epidemiol Health. 2026;e2026041.   Published online August 10, 2026
DOI: https://doi.org/10.4178/epih.e2026041    [Accepted]
  • 589 View
  • 24 Download
AbstractAbstract PDF
Abstract
OBJECTIVES
Since heated tobacco products (HTPs) entered the tobacco market, their market share and use have increased, but their implications for tobacco use patterns and cessation remain unclear. This study classified conventional cigarette (CC) and HTP use into detailed subgroups and examined whether tobacco consumption and intention to quit differed across tobacco use types.
METHODS
Data were analyzed from 40,434 adults who currently used CCs or HTPs in the 2024 Korea Community Health Survey. Tobacco use was classified into 5 groups according to lifetime and current CC and HTP use. Descriptive analyses were performed to assess group distributions, and multinomial and multivariable logistic regression models were fitted to identify associated factors and examine intention to quit within 6 months.
RESULTS
Among adults currently using CCs or HTPs, 73.7% reported exclusive CC use, 10.2% reported exclusive HTP use, and 16.1% reported dual use. Overall mean tobacco consumption was 14.4 sticks per day and was highest among dual users (20.7 sticks per day). Compared with the current CC and never HTP group, the current CC and former HTP group had higher odds of intending to quit (adjusted odds ratio [aOR] = 1.19, 95% CI: 1.06–1.34), whereas the current HTP and former CC group had lower odds of intending to quit (aOR = 0.78, 95% CI: 0.67–0.90).
CONCLUSIONS
Intention to quit varied by tobacco use type. Cessation services should account for differences in tobacco use patterns and intention to quit across tobacco use groups, particularly among people with prior or current HTP use and those who use both CCs and HTPs.
Summary
Original Article
Effect of tobacco outlet density on quit attempts in Korea: a multi-level analysis of the 2015 Korean Community Health Survey
Jaehyung Kong, Sung-il Cho
Epidemiol Health. 2021;43:e2021048.   Published online August 3, 2021
DOI: https://doi.org/10.4178/epih.e2021048
  • 24,977 View
  • 349 Download
  • 2 Web of Science
  • 2 Crossref
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
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
METHODS
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.
RESULTS
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).
CONCLUSIONS
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.
Summary
Korean summary
본 연구는 2015년 지역사회건강조사에 응답한 19세 이상 현재 흡연자 41,013명을 대상으로 금연 시도와 관련된 개인 수준의 요인과 지역 수준의 요인을 파악하기 위하여 다수준 분석을 실시하였다. 분석결과, 개인 수준의 요인뿐만 아니라 거주하는 지역의 담배소매점 밀집도가 흡연자의 금연 시도와 유의한 관계가 있는 것으로 확인되었다. 흡연조장환경 개선을 위한 담배 공급 감소 노력의 일환으로 지역사회 수준의 담배소매점 관리 정책이 필요하다.
Key Message
This study aimed to investigate whether the environment related to tobacco retailers impacts adult smokers’ attempts to quit smoking, for the first time in South Korea, using nationwide data on tobacco retailers and current smokers. 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, 0.70-0.98) than smokers who resided in the regions with the lowest tobacco outlet density. 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.

Citations

Citations to this article as recorded by  
  • Use of geographically weighted regression models to inform retail endgame strategies in South Korea: application to cigarette and ENDS prevalence
    Heewon Kang, Eunsil Cheon, Jaeyoung Ha, Sung-il Cho
    Tobacco Control.2025; 34(2): 205.     CrossRef
  • Association between area deprivation index and concerns to COVID-19: A multi-level analysis of individual and area factors
    Doo Woong Lee, Jieun Jang, Jaeyong Shin
    SSM - Population Health.2024; 25: 101580.     CrossRef
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