{"title":"School-Based Intervention of Smoking Media Literacy Among South Korean Adolescents: A Cluster Randomized Trial","authors":"Sunhee Park , Haein Lee","doi":"10.1016/j.anr.2025.03.001","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>Western literature has well established that (a) exposure to pro-smoking media messages is positively associated with adolescent smoking, and (b) an increase in smoking media literacy (SML) can mitigate the harmful effects of pro-smoking advertisements on adolescent smoking behavior. However, little is currently known about this phenomenon in South Korea. Thus, we aimed to investigate the effects of a SML intervention on SML, smoking attitudes, and smoking norms among Korean adolescents.</div></div><div><h3>Methods</h3><div>Based on the media literacy framework, we developed a five-lesson SML education program. We conducted a cluster randomized trial in one male high school to investigate the effects of the intervention. We randomly allocated ten classes in a one-to-one ratio to either the intervention or control group (<em>N</em> = 250, 10th graders). The intervention group participated in the SML program; the control group participated in a traditional anti-smoking program. We assessed the three outcomes (i.e., SML, smoking attitudes, and norms) at 1-week and 3-month follow-ups. We analyzed data obtained from 249 students after excluding one participant who did not complete the baseline test. Specifically, we conducted a mixed-model regression analysis three times after accounting for intraclass correlations.</div></div><div><h3>Results</h3><div>SML, smoking attitudes, and norms assessed in a pre-test before the intervention did not significantly differ between the intervention and control groups. After the intervention, we found a significant increase in SML at both 1-week (coefficient = .91) and 3-month follow-ups (coefficient = .73), although we did not find important intervention effects on smoking attitudes and norms at both follow-ups.</div></div><div><h3>Conclusions</h3><div>We found a strong effect of the SML education on an increase in SML, which could mitigate the negative effects of pro-smoking advertisements. Thus, health professionals need to actively incorporate strategies that enhance SML, developed based on the multidimensional core concepts of media literacy, into traditional anti-smoking programs.</div></div><div><h3>Trial registration</h3><div>Clinical Research Information Service, KCT0009514.</div></div>","PeriodicalId":55450,"journal":{"name":"Asian Nursing Research","volume":"20 1","pages":"Pages 2-10"},"PeriodicalIF":2.9000,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Asian Nursing Research","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1976131725000301","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/5/20 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"NURSING","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose
Western literature has well established that (a) exposure to pro-smoking media messages is positively associated with adolescent smoking, and (b) an increase in smoking media literacy (SML) can mitigate the harmful effects of pro-smoking advertisements on adolescent smoking behavior. However, little is currently known about this phenomenon in South Korea. Thus, we aimed to investigate the effects of a SML intervention on SML, smoking attitudes, and smoking norms among Korean adolescents.
Methods
Based on the media literacy framework, we developed a five-lesson SML education program. We conducted a cluster randomized trial in one male high school to investigate the effects of the intervention. We randomly allocated ten classes in a one-to-one ratio to either the intervention or control group (N = 250, 10th graders). The intervention group participated in the SML program; the control group participated in a traditional anti-smoking program. We assessed the three outcomes (i.e., SML, smoking attitudes, and norms) at 1-week and 3-month follow-ups. We analyzed data obtained from 249 students after excluding one participant who did not complete the baseline test. Specifically, we conducted a mixed-model regression analysis three times after accounting for intraclass correlations.
Results
SML, smoking attitudes, and norms assessed in a pre-test before the intervention did not significantly differ between the intervention and control groups. After the intervention, we found a significant increase in SML at both 1-week (coefficient = .91) and 3-month follow-ups (coefficient = .73), although we did not find important intervention effects on smoking attitudes and norms at both follow-ups.
Conclusions
We found a strong effect of the SML education on an increase in SML, which could mitigate the negative effects of pro-smoking advertisements. Thus, health professionals need to actively incorporate strategies that enhance SML, developed based on the multidimensional core concepts of media literacy, into traditional anti-smoking programs.
Trial registration
Clinical Research Information Service, KCT0009514.
期刊介绍:
Asian Nursing Research is the official peer-reviewed research journal of the Korean Society of Nursing Science, and is devoted to publication of a wide range of research that will contribute to the body of nursing science and inform the practice of nursing, nursing education, administration, and history, on health issues relevant to nursing, and on the testing of research findings in practice.