National prevalence of smoking among adolescents at tobacco tax increase and COVID-19 pandemic in South Korea, 2005-2022.

National prevalence of smoking among adolescents at tobacco tax increase and COVID-19 pandemic in South Korea, 2005-2022.

Publication date: Apr 03, 2024

Prior research has predominantly focused on the overall effects of the tobacco tax increase and the COVID-19 pandemic on adolescent smoking behavior. However, there is a need to examine both the immediate and sustained associations of these two factors on subgroups of adolescents, employing an interrupted time-series model. We aimed to investigate the immediate and sustained association of tobacco tax increase and the COVID-19 pandemic on adolescent smoking prevalence. This study utilized data from the Korea Youth Risk Behavior Web-Based Survey to analyze the prevalence of current smoking among all participants (CSP) and the prevalence of daily smoking among current smokers (DSP) of Korean adolescents (n = 1,159,995; mean, age 14. 99; male 51. 5%) over 18 years from 2005 to 2022. The study examined 18-year trends in CSP and DSP among Korean adolescents, emphasizing the influences of the 2015 tobacco tax increase and the COVID-19 pandemic, using β coefficients and their differences (β) from an interrupted time-series ARIMA model. While CSP exhibited a decreasing trend, DSP exhibited an increasing trend. Tobacco tax increase was associated with both the short and long terms in smoking prevalence, however, the short-term association on prevalence (CSP, - 3. 076 [95% CI, - 3. 707 to - 2. 445]; DSP, - 4. 112 [95% CI, - 6. 488 to - 1. 735]) was stronger. The pandemic was associated with an immediate increase in DSP (9. 345 [95% CI, 5. 285-13. 406]). These effects were strongest among adolescents from low economic status and those exposed to familial secondhand smoking. Supportive programs for adolescents in low-income families will help overcome the effects associated with the pandemic. As a tobacco tax increase was associated with a reduction in smoking prevalence, this could be one method to overcome the effects of the pandemic.

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Concepts Keywords
Korea Adolescent
Pandemic ARIMA
Tax COVID-19
Daily smokers
Ever smokers
Interrupted time series
Smoking
Tobacco tax

Semantics

Type Source Name
disease VO Tax
disease MESH COVID-19 pandemic
disease VO time
drug DRUGBANK Coenzyme M
disease VO USA
drug DRUGBANK Diethylstilbestrol
disease VO organization
drug DRUGBANK Adenosine
disease MESH nicotine addiction
pathway KEGG Nicotine addiction
disease IDO intervention
disease VO effective
disease VO Gap
disease VO effectiveness
disease MESH substance abuse
drug DRUGBANK Trestolone
disease IDO country
disease VO protocol
disease VO population
disease MESH underweight
disease MESH overweight
disease MESH suicidal ideation
drug DRUGBANK Ethanol
disease MESH educational levels
disease VO Advent
disease VO Optaflu
drug DRUGBANK Nicotine
disease VO vaccination
disease VO report
disease MESH pregnancy outcomes
disease MESH alcoholic fatty liver
disease IDO susceptibility
disease MESH infection
disease MESH Allergy
drug DRUGBANK Formaldehyde
disease MESH asthma
pathway KEGG Asthma
disease MESH rhinitis
disease MESH mental illness
disease MESH cardiovascular diseases
pathway REACTOME Reproduction

Original Article

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