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Estimated prevalence and trends in smoking among adolescents in South Korea, 2005-2021: a nationwide serial study

 Hyoin Shin  ;  Sangil Park  ;  Hyunju Yon  ;  Chae Yeon Ban  ;  Stephen Turner  ;  Seong Ho Cho  ;  Youn Ho Shin  ;  Jung U Shin  ;  Ai Koyanagi  ;  Louis Jacob  ;  Lee Smith  ;  Chanyang Min  ;  Young Joo Lee  ;  So Young Kim  ;  Jinseok Lee  ;  Rosie Kwon  ;  Min Ji Koo  ;  Guillaume Fond  ;  Laurent Boyer  ;  Jong Woo Hahn  ;  Namwoo Kim  ;  Sang Youl Rhee  ;  Jae Il Shin  ;  Ho Geol Woo  ;  Hyeowon Park  ;  Hyeon Jin Kim  ;  Yoonsung Lee  ;  Man S Kim  ;  Eléa Lefkir  ;  Vlasta Hadalin  ;  Jungwoo Choi  ;  Seung Won Lee  ;  Dong Keon Yon  ;  Sunyoung Kim 
 WORLD JOURNAL OF PEDIATRICS, Vol.19(4) : 366-377, 2023-04 
Journal Title
Issue Date
Adolescent ; COVID-19* / epidemiology ; Humans ; Male ; Pandemics* ; Prevalence ; Risk Factors ; Smoking / epidemiology
Adolescent ; COVID-19 ; Daily smokers ; Ever smokers ; Pandemic ; Smoking
Background Although smoking is classified as a risk factor for severe COVID-19 outcomes, there is a scarcity of studies on prevalence of smoking during the COVID-19 pandemic. Thus, this study aims to analyze the trends of prevalence of smoking in adolescents over the COVID-19 pandemic period.Methods The present study used data from middle to high school adolescents between 2005 and 2021 who participated in the Korea Youth Risk Behavior Web-based Survey (KYRBS). We evaluated the smoking prevalence (ever or daily) by year groups and estimated the slope in smoking prevalence before and during the pandemic.Results A total of 1,137,823 adolescents participated in the study [mean age, 15.04 years [95% confidence interval (CI) 15.03-15.06]; and male, 52.4% (95% CI 51.7-53.1)]. The prevalence of ever smokers was 27.7% (95% CI 27.3-28.1) between 2005 and 2008 but decreased to 9.8% (95% CI 9.3-10.3) in 2021. A consistent trend was found in daily smokers, as the estimates decreased from 5.4% (95% CI 5.2-5.6) between 2005 and 2008 to 2.3% (95% CI 2.1-2.5) in 2021. However, the downward slope in the overall prevalence of ever smokers and daily smokers became less pronounced in the COVID-19 pandemic period than in the pre-pandemic period. In the subgroup with substance use, the decreasing slope in daily smokers was significantly more pronounced during the pandemic than during the pre-pandemic period.Conclusions The proportion of ever smokers and daily smokers showed a less pronounced decreasing trend during the pandemic. The findings of our study provide an overall understanding of the pandemic's impact on smoking prevalence in adolescents.
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1. College of Medicine (의과대학) > Dept. of Pediatrics (소아과학교실) > 1. Journal Papers
Yonsei Authors
Shin, Jae Il(신재일) ORCID logo https://orcid.org/0000-0003-2326-1820
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