The rapid growth of online alcohol sales, delivery services, and digital marketing has increased alcohol availability and heightened public health concerns, particularly among adolescents. However, regulatory responses remain inconsistent and vary significantly across regions. This scoping review synthesizes global regulatory approaches to online alcohol access, encompassing both established Western models and emerging Asian frameworks, and identifies key cross-national patterns and policy gaps. This scoping review followed PRISMA-ScR (preferred reporting items for systematic reviews and meta-analyses extension for scoping reviews) and Joanna Briggs Institute guidance. Searches of four electronic databases were complemented by a supplementary gray literature search targeting specific Asian jurisdictions to minimize geographic bias. The identified sources included policies and peer-reviewed studies on online alcohol sales, delivery practices, age-verification procedures, and digital marketing regulations. Data were systematically organized by regulatory domain and analyzed using a comparative socio-political framework (liberalism vs. paternalism) to interpret cross-national differences. The analysis of 34 documents across five regulatory domains revealed a distinct global divide. Western nations predominantly rely on co-regulatory models that frequently suffer from significant enforcement gaps, whereas Asian jurisdictions employ strict structural barriers. These include mandatory digital real-name authentication, “Smart Order” systems, and joint platform liability, designed to effectively restrict underage access where Western self-regulation has historically failed. To address global enforcement gaps, future policies must evolve from “soft” co-regulation to “hard” technical mandates. Integrating Asian-style digital identity systems with strict platform liability offers a viable pathway to effectively restrict underage access and reduce alcohol-related harm.

Background
Adolescent dependency on smartphones is the highest among all age groups. Adolescents can be influenced to evaluate their body image by popular ideals about beautiful bodies via smartphone content, which can cause body image distortion. This study aimed to examine the association between body image distortion and smartphone dependency and the duration of smartphone usage among Korean adolescents.
Methods
This study used data from the 16th Korean Youth Risk Behavior Web-Based Survey (2020), and included 42,981 participants, who were grouped according to self-reported duration of smartphone usage and smartphone dependency, as measured by a questionnaire. Body image distortion is defined as an exaggerated subjective body image compared to the actual body image. Multivariable-adjusted logistic regression was used to determine the odds ratios (ORs) with 95% confidence intervals (CIs) of body image distortion on smartphone dependency and usage time after adjusting for various factors related to body image distortion.
Results
Among the 42,981 participants, both moderate and high levels of smartphone dependency were associated with body image distortion in boys (moderate: adjusted OR [aOR], 1.11; 95% CI, 1.01–1.22; high: aOR, 1.18; 95% CI, 1.05–1.32) and girls (moderate: aOR, 1.14; 95% CI, 1.05–1.23; high: aOR, 1.30; 95% CI, 1.18–1.42) compared to the low-level dependency group. However, no significant association was found between smartphone usage duration and body image distortion.
Conclusion
Our study demonstrated that moderate to high levels of smartphone dependency are associated with body image distortion in adolescents. Therefore, it is necessary to establish strategies for checking and managing adolescents’ smartphone dependence.

Citations

• A year of significant progress for the Korean Journal of Family Medicine
  Seung-Won Oh
  Korean Journal of Family Medicine.2026; 47(1): 1.     CrossRef
• Excessive smartphone use, smartphone dependency and body image distortion in Korean adolescents
  Young Gyu Cho
  Korean Journal of Family Medicine.2025; 46(2): 58.     CrossRef
• Association Between Social Networking Service Use and Body Image Among Elementary School Children in Japan
  Asami Baba, Masumi Suzuki, Rikako Yoshitake, Yumiko Inose, Naomi Omi
  European Journal of Investigation in Health, Psychology and Education.2025; 15(7): 125.     CrossRef
• Association Between Sedentary Behavior and Body Image Distortion Among Korean Adolescents Considering Sedentary Purpose
  Suin Park, Heesoo Lee, Wanhyung Lee, Mi-Jeong Lee
  Children.2025; 13(1): 20.     CrossRef
• Social Media Use and Body Image Dissatisfaction Among University Students of Health Sciences in Saudi Arabia
  Ihdaa J Abdulwahab, Jumana H Khouja, Noha A Alzahrani, Amina Bargawi
  Cureus.2024;[Epub]     CrossRef

Background
With the growth of the Internet, social media platforms have emerged as major sources of medical information. We assessed the reliability, quality, and accuracy of the most-viewed YouTube videos containing information on the effect of vitamin C on the common cold.
Methods
The YouTube videos were searched on August 1, 2022, using the keywords: (“ascorbic acid” OR “vitamin C” OR “Sodium Ascorbate” OR “L-ascorbic”) AND “common cold”. The 30 most-viewed videos were included in our study. The reliability and quality of the videos were analyzed using modified DISCERN and Global Quality Scales, respectively. When the videos included at least one correct or inaccurate scientific statement about the effect of vitamin C on the common cold, they were classified as accurate or misleading videos, respectively; those without any pertinent information were considered neither accurate nor misleading. If a video contained both accurate and inaccurate statements, it was classified as misleading.
Results
Of the 30 most-viewed videos, 73% were unreliable, and 67% contained misleading information and were of a poor quality. Of these 30 videos, 14 videos were produced and posted by customers who were not specialized in medicine or nutrition. Moreover, these videos were of significantly lower reliability, quality, and accuracy than those produced by nutrition or fitness channels or by medical or nutrition professionals.
Conclusion
The reliability, quality, and accuracy of videos uploaded by non-professionals were low. Therefore, video creators should upload reliable, high-quality videos to ensure the dissemination of accurate medical information.

Citations

• Regulatory systems and scientific evidence for health functional foods in Korea
  Seung-Won Oh
  Journal of the Korean Medical Association.2025; 68(5): 311.     CrossRef
• Evaluating the Quality and Reliability of YouTube Videos Providing Nutritional Recommendations for Irritable Bowel Syndrome
  Eda Başmısırlı, Merve Kip, Hande Altun, Neriman İnanç
  Journal of Human Nutrition and Dietetics.2025;[Epub]     CrossRef
• Characteristics of the most viewed Hybrid Assistive Limb-related videos on YouTube
  Makoto Nagasawa, Sho Nakamura, Hiroto Narimatsu
  Health Informatics Journal.2024;[Epub]     CrossRef
• Guidelines for nutrition counseling in primary healthcare clinics
  Gyeongsil Lee, Seung-Won Oh
  Journal of the Korean Medical Association.2024; 67(4): 278.     CrossRef
• YouTube, Health Information, and Health Literacy
  Seung-Won Oh
  Korean Journal of Family Medicine.2023; 44(6): 301.     CrossRef

Citations

• A Comprehensive Review of Psychosocial, Academic, and Psychological Issues Faced by University Students in India
  Mubashir Gull, Navneet Kaur, Wael M. F. Abuhasan, Suneetha Kandi, Sidharth Murali Nair
  Annals of Neurosciences.2026; 33(1): 90.     CrossRef
• Health and social inequities among cisgender gay and bisexual men in Japan: a nationwide cross-sectional study using a large-scale web-based survey
  Kazuhiko Ikeuchi, Takahiro Tabuchi, Yuki Arisato, Shinya Matsumoto, Toshiyuki Kishida, Akira Kado, Kazuya Okushin, Hiroshi Yotsuyanagi, Takeya Tsutsumi
  BMC Public Health.2026;[Epub]     CrossRef
• The association between short video addiction and emotion dysregulation among college students: a latent profile analysis and its influencing factors
  Shuhe Wang, Zhongguo Liu
  Frontiers in Psychology.2026;[Epub]     CrossRef
• Short-video engagement, health-related behaviors, and mental well-being: Evidence from a longitudinal study of Chinese youth
  Dong Zhou, Li-Min Lin
  Acta Psychologica.2026; 265: 106624.     CrossRef
• Public discourse on substance use behavior as a driver of public policy: a scoping review of South Korean academic and official literature
  Meekang Sung, Jihye Han, Carrie G. Wade, Vaughan W. Rees
  Addiction Research & Theory.2025; 33(4): 312.     CrossRef
• Exploring smartphone utilization patterns, addiction, and associated factors in school-going adolescents: A mixed-method study
  Hemangi M. Ladani, M Yogesh, Nidhi S. Trivedi, Rohankumar B. Gandhi, Dhruv Lakkad
  Journal of Family Medicine and Primary Care.2025; 14(1): 334.     CrossRef
• Impact of digital addiction on youth health: A systematic review and meta-analysis
  Blen Dereje Shiferaw, Jie Tang, Yingxue Wang, Yihan Wang, Yuhao Wang, Louisa Esi Mackay, Yunjiao Luo, Na Yan, Xinyu Shen, Tong Zhou, Yiran Zhu, Jialin Cai, Qingzhi Wang, Wenjun Yan, Xiuyin Gao, Haifeng Pan, Wei Wang
  Journal of Behavioral Addictions.2025; 14(3): 1129.     CrossRef
• The Mediating Role of Loneliness in the Relationship Between Insecurity Feelings and Internet Addiction
  Biplob Kumar Dey, Kishor Roy
  International Journal of Social Psychiatry.2025;[Epub]     CrossRef
• Investigating associations of social media use motives and mental well-being in adolescents
  Nicholas E. Murray, Silvia Marin-Dragu, Marcus Cormier, Shuya Li, Julia Saad Hossne, Mohamed Muzamil, Alexa Bagnell, Simon B. Sherry, Rita Orji, Sherry H. Stewart, Sandra M. Meier
  Computers in Human Behavior Reports.2025; 20: 100846.     CrossRef
• Digital Prisoner: The Impact of Digital Addiction on Technological Sports Product Addiction
  Gökçer Aydın
  Dede Korkut Spor Bilimleri Dergisi.2025; 3(2): 64.     CrossRef
• Associations Between Problematic Internet Use and Externalizing Problem Behaviors Among Chinese Rural Adolescent
  Xingchen Zhu, Wencan Li, Shuping Yang
  Deviant Behavior.2024; 45(4): 579.     CrossRef
• Social Media Impact on Self-Perceived Oral Health Practices Among Patients Visiting Tertiary Care Hospital in Lucknow: A Cross-Sectional Study
  Aruna Singh, Gaurav Mishra, Vinay Kumar Gupta, Sumit Kumar, Atrey J Pai Khot
  Cureus.2024;[Epub]     CrossRef
• Comorbidity, Eating Behaviors and Smartphone Addiction in Italian Nurses’ Characteristics
  Elsa Vitale, Rocco Mea
  Endocrine, Metabolic & Immune Disorders - Drug Targets.2024; 24(12): 1431.     CrossRef
• Surfing into trouble? How internet use influences early adolescent behavior through diverse pathways?
  Xingchen Zhu, Wencan Li, Haohan Zhao, Jinsheng Hu
  Humanities and Social Sciences Communications.2024;[Epub]     CrossRef
• How Does Problematic Internet Use Influence Chinese Rural Adolescent Externalizing Problem Behaviors? The Mediating Role of Mental Health and the Moderating Role of Parental Knowledge
  Shuping Yang, Xingchen Zhu
  International Journal of Environmental Research and Public Health.2023; 20(3): 2162.     CrossRef
• Problematic Internet Use and Suicidal Behavior in Adolescents: A Review
  Edith Jolin, Ronald Weller
  Annals of Clinical Psychiatry.2023; 35(4): 272.     CrossRef
• Prevalence of Nicotine Dependence and Internet Addiction among University Students, and Relation between them
  Kenan Tastan, Zafer Erdin Demirbas, Duygu Kavuncuoglu, Suat Sincan
  Electronic Journal of Medical and Educational Technologies.2022; 15(2): em2204.     CrossRef
• Prevalence and Motives of Social Media Use among the Iranian Population
  Maryam Chegeni, Nouzar Nakhaee, Mahin Eslami Shahrbabaki, Parvin Mangolian Shahrbabaki, Sara Javadi, AliAkbar Haghdoost, Marco Dettori
  Journal of Environmental and Public Health.2022;[Epub]     CrossRef
• Internet addiction patterns of rural Chinese adolescents: Longitudinal predictive effects on depressive symptoms and problem behaviors
  Yadong Sun, JingJin Shao, Jiamei Li, Yue Jiang
  Journal of Pacific Rim Psychology.2022;[Epub]     CrossRef
• Clinical services for problematic internet usage
  Amanda Roberts, Steve Sharman, Henrietta Bowden-Jones
  Current Opinion in Behavioral Sciences.2022; 46: 101180.     CrossRef
• ONLINE COMPULSORY PURCHASE BEHAVIOR IN TURKISH SOCIETY IN THE COVID-19 PANDEMIC: A SECTIONAL STUDY
  Havva GEZGİN YAZICI, Müşerref DİDİN
  Online Türk Sağlık Bilimleri Dergisi.2022;[Epub]     CrossRef
• КОГНІТИВНИЙ ДИСКУРС СУЧАСНИХ ЗАЛЕЖНОСТЕЙ МІСТЯНИНА: НОВА ПАРАДИГМА ПІДГОТОВКИ ПСИХОЛОГА
  Оксана Нікітіна, Оксана Резван, Вікторія Тихонович
  Вісник ХНПУ імені Г. С. Сковороди "Психология".2022; (66): 199.     CrossRef
• Cross-sectional associations between screen time and the selected lifestyle behaviors in adolescents
  Huiying Fan, Jin Yan, Zhen Yang, Kaixin Liang, Sitong Chen
  Frontiers in Public Health.2022;[Epub]     CrossRef
• The recognition of gaming disorder in China: a case series of 223 patients
  Tianli Shao, Xinxin Chen, Shucai Huang, Zhenjiang Liao, Shuhong Lin, Jing Qi, Yi Cai, Qiuping Huang, Hongxian Shen
  PeerJ.2021; 9: e10827.     CrossRef
• Internet addiction among Czech adolescents
  Roman Procházka, Jaroslava Suchá, Daniel Dostál, Tomáš Dominik, Martin Dolejš, Jan Šmahaj, Marek Kolařík, Ondřej Glaser, Lucie Viktorová, Martina Friedlová
  PsyCh Journal.2021; 10(5): 679.     CrossRef
• The predictor role of Internet addiction in high- risk behaviors and general health status among Alborz students: A structural equation model
  Azam Toozandehjani, Zohreh Mahmoodi, Mitra Rahimzadeh, Alireza Jashni Motlagh, Mahnaz Akbari Kamrani, Sara Esmaelzadeh Saeieh
  Heliyon.2021; 7(5): e06987.     CrossRef
• The Examining of Internet Addiction and its Related Factors in Children Aged 6-18 Years
  Gamze ÇAN, Selim GÜNÜÇ, Murat TOPBAŞ, Nazım Ercüment BEYHUN, Kübra ŞAHİN, Büşra PARLAK SOMUNCU
  Sakarya Medical Journal.2021;[Epub]     CrossRef
• Why Are Turkish University Students Addicted to the Internet? A Moderated Mediation Model
  Orhan Koçak, İlayda Yılmaz, Mustafa Z. Younis
  Healthcare.2021; 9(8): 953.     CrossRef
• Predictors of Nutritional Status, Depression, Internet Addiction, Facebook Addiction, and Tobacco Smoking Among Women With Eating Disorders in Spain
  Amira Mohammed Ali, Hiroaki Hori, Yoshiharu Kim, Hiroshi Kunugi
  Frontiers in Psychiatry.2021;[Epub]     CrossRef
• Correlation of internet addiction with academic performance and general health in undergraduate physiotherapy students
  Aqsa Naseem, Zeest Hashmi, Seemab Arif, Taiba Razzaq, Nafisa Shahzadi
  Pakistan BioMedical Journal.2021;[Epub]     CrossRef
• An investigation on Negative Activity, Alexithymia, Emotion Regulation, and Internet addiction in a sample of high school students: A randomized controlled trial
  Mohammad Ahsan Khodami, Leila Sheibani
  Annales Médico-psychologiques, revue psychiatrique.2020; 178(6): 624.     CrossRef
• Is problematic Internet use associated with alcohol and cannabis use among youth? A systematic review
  Stéphanie Lanthier-Labonté, Magali Dufour, David-Martin Milot, Julie Loslier
  Addictive Behaviors.2020; 106: 106331.     CrossRef
• Study of internet addiction and its association with depression and insomnia in university students
  Akhilesh Jain, Rekha Sharma, KusumLata Gaur, Neelam Yadav, Poonam Sharma, Nikita Sharma, Nazish Khan, Priyanka Kumawat, Garima Jain, Mukesh Maanju, KartikMohan Sinha, KuldeepS Yadav
  Journal of Family Medicine and Primary Care.2020; 9(3): 1700.     CrossRef
• The Relationship Between Internet Addiction and Social Adjustment, and Test Anxiety of the Students of Ardabil University of Medical Sciences
  Mahdi Naeim, Ali Rezaeisharif, Hamed Zandian
  Shiraz E-Medical Journal.2020;[Epub]     CrossRef
• The frequency of impairments in everyday activities due to the overuse of the internet, gaming, or smartphone, and its relationship to health-related quality of life in Korea
  Yeo-Won Jeong, Young-Ran Han, Sang-Kyu Kim, Han-Seok Jeong
  BMC Public Health.2020;[Epub]     CrossRef
• Internet Addiction, Oral Health Practices, Clinical Outcomes, and Self-Perceived Oral Health in Young Saudi Adults
  Asim Al-Ansari, Maha El Tantawi, Nasser AlMadan, Muhammad Nazir, Balgis Gaffar, Khalifa Al-Khalifa, Ali AlBaty
  The Scientific World Journal.2020; 2020: 1.     CrossRef
• Risk Behaviors among Youths in a Two-Aspect Approach: Using Psychoactive Substances and Problematic Using of Internet
  Łukasz Tomczyk, Arkadiusz Wąsiński
  Journal of Child & Adolescent Substance Abuse.2020; 29(1): 27.     CrossRef
• Internet addiction among adolescents in Macau and mainland China: prevalence, demographics and quality of life
  Dan-Dan Xu, Ka-In Lok, Huan-Zhong Liu, Xiao-Lan Cao, Feng-Rong An, Brian J. Hall, Gabor S. Ungvari, Si-Man Lei, Yu-Tao Xiang
  Scientific Reports.2020;[Epub]     CrossRef
• Internet Addiction and Related Clinical Problems: A Study on Italian Young Adults
  Lorenzo Zamboni, Igor Portoghese, Alessio Congiu, Silvia Carli, Ruggero Munari, Angela Federico, Francesco Centoni, Adelelmo Lodi Rizzini, Fabio Lugoboni
  Frontiers in Psychology.2020;[Epub]     CrossRef
• Interaction Between Smoking and Internet Gaming Disorder on Spontaneous Brain Activity
  Xianxin Qiu, Xu Han, Yao Wang, Weina Ding, Yawen Sun, Yan Zhou, Hao Lei, Fuchun Lin
  Frontiers in Psychiatry.2020;[Epub]     CrossRef
• Association of Internet Addiction with Adolescents’ Lifestyle: A National School-Based Survey
  Chan Ying Ying, S Maria Awaluddin, Lim Kuang Kuay, Cheong Siew Man, Azli Baharudin, Ling Miaw Yn, Norhafizah Sahril, Mohd Azahadi Omar, Noor Ani Ahmad, Normala Ibrahim
  International Journal of Environmental Research and Public Health.2020; 18(1): 168.     CrossRef
• Relationship between problematic Internet use and age at initial weekly Internet use
  Hideki Nakayama, Fumihiko Ueno, Satoko Mihara, Takashi Kitayuguchi, Susumu Higuchi
  Journal of Behavioral Addictions.2020; 9(1): 129.     CrossRef
• Predictors of problematic Internet use in school going adolescents of Bhavnagar, India
  Sneha B Vadher, Bharat N Panchal, Ashok U Vala, Imran J Ratnani, Kinjal J Vasava, Rishi S Desai, Aayushi H Shah
  International Journal of Social Psychiatry.2019; 65(2): 151.     CrossRef
• Association of the Use of a Heated Tobacco Product with Perceived Stress, Physical Activity, and Internet Use in Korean Adolescents: A 2018 National Survey
  Ahnna Lee, Kang-Sook Lee, Hanul Park
  International Journal of Environmental Research and Public Health.2019; 16(6): 965.     CrossRef
• Internet Addiction among Indonesia University Students: Musculoskeletal Symptoms, Physical and Psychosocial Behavior Problems
  G B Pratama, A Widyanti
  IOP Conference Series: Materials Science and Engineering.2019; 528(1): 012015.     CrossRef
• Clinical-pathopsychological and psychodiagnostic specifics of comorbid adaptation disorders in people with computer addiction
  Yu. Starodubtseva
  Медицина сьогодні і завтра.2019; 85(4): 101.     CrossRef
• Investigation the relationship between internet dependence with anxiety and educational performance of high school students
  Fatemeh Kheyri, Akbar Azizifar, Reza Valizadeh, Yousef Veisani, Sehat Aibod, Fariba Cheraghi, Fathola Mohamadian
  Journal of Education and Health Promotion.2019;[Epub]     CrossRef
• Avoidant romantic attachment in adolescence: Gender, excessive internet use and romantic relationship engagement effects
  Vasileios Stavropoulos, Stefanos Mastrotheodoros, Tyrone L. Burleigh, Nicole Papadopoulos, Rapson Gomez, Leora Trub
  PLOS ONE.2018; 13(7): e0201176.     CrossRef
• An Investigation on the Digital Addiction of the Students of Faculty of Sports of Kocaeli University
  Elif Karagün, Zekiye Dilay Ekiz, Müge Sarper Kahveci, E. Masal, I. Önder, H. Çalişkan, S. Beşoluk
  SHS Web of Conferences.2018; 48: 01057.     CrossRef
• Metaphors Used by the Students at Kocaeli University Sports Sciences Faculty Regarding E-sports Concept
  Elif Karagün, Müge Sarper Kahveci, Inanc Kahveci, Zekiye Dilay Ekiz, E. Masal, I. Önder, H. Çalişkan, S. Beşoluk
  SHS Web of Conferences.2018; 48: 01058.     CrossRef
• What Protects Adolescents with Youth Subculture Affiliation from Excessive Internet Use?
  Daniela Filakovska Bobakova, Jana Holubcikova, Andrea Madarasova Geckova, Zuzana Dankulincova Veselska
  International Journal of Environmental Research and Public Health.2018; 15(11): 2451.     CrossRef
• The impact of online social networking on adolescent psychological well-being (WB): a population-level analysis of Korean school-aged children
  Harris Hyun-soo Kim
  International Journal of Adolescence and Youth.2017; 22(3): 364.     CrossRef
• Internet Addiction in adolescence: Neurobiological, psychosocial and clinical issues
  L. Cerniglia, F. Zoratto, S. Cimino, G. Laviola, M. Ammaniti, W. Adriani
  Neuroscience & Biobehavioral Reviews.2017; 76: 174.     CrossRef
• Difference in the functional connectivity of the dorsolateral prefrontal cortex between smokers with nicotine dependence and individuals with internet gaming disorder
  Xin Ge, Yawen Sun, Xu Han, Yao Wang, Weina Ding, Mengqiu Cao, Yasong Du, Jianrong Xu, Yan Zhou
  BMC Neuroscience.2017;[Epub]     CrossRef
• Stress vulnerability in male youth with Internet Gaming Disorder
  Michael Kaess, Peter Parzer, Laura Mehl, Luisa Weil, Esther Strittmatter, Franz Resch, Julian Koenig
  Psychoneuroendocrinology.2017; 77: 244.     CrossRef
• The Effect of Adolescents’ Internet Addiction on Smartphone Addiction
  Dijle Ayar, Murat Bektas, Ilknur Bektas, Asli Akdeniz Kudubes, Yasemin Selekoglu Ok, Sema Sal Altan, Isa Celik
  Journal of Addictions Nursing.2017; 28(4): 210.     CrossRef
• Sensation Seeking and Online Gaming Addiction in Adolescents: A Moderated Mediation Model of Positive Affective Associations and Impulsivity
  Jianping Hu, Shuangju Zhen, Chengfu Yu, Qiuyan Zhang, Wei Zhang
  Frontiers in Psychology.2017;[Epub]     CrossRef
• The association between alcohol use and problematic internet use: A large-scale nationwide cross-sectional study of adolescents in Japan
  Hisayoshi Morioka, Osamu Itani, Yoneatsu Osaki, Susumu Higuchi, Maki Jike, Yoshitaka Kaneita, Hideyuki Kanda, Sachi Nakagome, Takashi Ohida
  Journal of Epidemiology.2017; 27(3): 107.     CrossRef
• Cross‐sectional and longitudinal epidemiological studies of Internet gaming disorder: A systematic review of the literature
  Satoko Mihara, Susumu Higuchi
  Psychiatry and Clinical Neurosciences.2017; 71(7): 425.     CrossRef
• Computer-Based Prevention and Intervention to Reduce Substance Use in Youth
  Steven Schinke, Traci Marie Schwinn
  Current Addiction Reports.2017; 4(4): 410.     CrossRef
• Parent Programs for Reducing Adolescent’s Antisocial Behavior and Substance Use: A Randomized Controlled Trial
  Camilla Jalling, Maria Bodin, Anders Romelsjö, Håkan Källmén, Natalie Durbeej, Anders Tengström
  Journal of Child and Family Studies.2016; 25(3): 811.     CrossRef
• Smoking Cessation Failure Among Korean Adolescents
  Sung Reul Kim, Hyun Kyung Kim, Ji Young Kim, Hye Young Kim, Sung Hee Ko, Minyoung Park
  The Journal of School Nursing.2016; 32(3): 155.     CrossRef
• Frequent Internet Pornography Use: Korean Adolescents' Internet Use Time, Mental Health, Sexual Behavior, and Delinquency
  Eunsuk Cho
  International Journal of Human Ecology.2016; 17(1): 27.     CrossRef
• The Association of Level of Internet Use with Suicidal Ideation and Suicide Attempts in South Korean Adolescents: A Focus on Family Structure and Household Economic Status
  Seo Yoon Lee, Eun-Cheol Park, Kyu-Tae Han, Seung Ju Kim, Sung-Youn Chun, Sohee Park
  The Canadian Journal of Psychiatry.2016; 61(4): 243.     CrossRef
• Internet use and electronic gaming by children and adolescents with emotional and behavioural problems in Australia – results from the second Child and Adolescent Survey of Mental Health and Wellbeing
  Wavne Rikkers, David Lawrence, Jennifer Hafekost, Stephen R. Zubrick
  BMC Public Health.2016;[Epub]     CrossRef
• Early Sexual Intercourse: Prospective Associations with Adolescents Physical Activity and Screen Time
  Raquel Nogueira Avelar e Silva, Anne Wijtzes, Daphne van de Bongardt, Petra van de Looij-Jansen, Rienke Bannink, Hein Raat, Sachiko Matsuzaki
  PLOS ONE.2016; 11(8): e0158648.     CrossRef
• The health belief model and number of peers with internet addiction as inter-related factors of Internet addiction among secondary school students in Hong Kong
  Yanhong Wang, Anise M. S. Wu, Joseph T. F. Lau
  BMC Public Health.2016;[Epub]     CrossRef
• Allergic diseases, excessive Internet use and suicidal ideation in Korean adolescents
  Dongyun Lee, Ji-Yeong Seo, Cheol-Soon Lee, Chul-Soo Park, Bong-Jo Kim, Boseok Cha, So-Jin Lee
  Comprehensive Psychiatry.2015; 62: 100.     CrossRef
• Socioeconomic and Geographic Inequalities of Internet Addiction in Korean Adolescents
  Cheol-Soon Lee, Kwame McKenzie
  Psychiatry Investigation.2015; 12(4): 559.     CrossRef
• Problematic Internet Use and Its Correlates Among Students from Three Medical Schools Across Three Countries
  Yatan Pal Singh Balhara, Rishab Gupta, Olayinka Atilola, Rajna Knez, Tonka Mohorović, Wamique Gajdhar, Ahmed O. Javed, Rakesh Lal
  Academic Psychiatry.2015; 39(6): 634.     CrossRef
• The difference of general characteristics, health status and health behavior of internet over users by internet use purposes among Korean adolescents
  Young-Mi Ko, Min Kyoung Lim
  Korean Journal of Health Education and Promotion.2015; 32(5): 1.     CrossRef
• Life satisfaction and family functions as-predictors of problematic Internet use in university students
  Zekavet Kabasakal
  Computers in Human Behavior.2015; 53: 294.     CrossRef
• The relationship between parental mediation and Internet addiction among adolescents, and the association with cyberbullying and depression
  Fong-Ching Chang, Chiung-Hui Chiu, Nae-Fang Miao, Ping-Hung Chen, Ching-Mei Lee, Jeng-Tung Chiang, Ying-Chun Pan
  Comprehensive Psychiatry.2015; 57: 21.     CrossRef
• Different Resting-State Functional Connectivity Alterations in Smokers and Nonsmokers with Internet Gaming Addiction
  Xue Chen, Yao Wang, Yan Zhou, Yawen Sun, Weina Ding, Zhiguo Zhuang, Jianrong Xu, Yasong Du
  BioMed Research International.2014; 2014: 1.     CrossRef
• Prevalence of internet addiction and its association with stressful life events and psychological symptoms among adolescent internet users
  Jie Tang, Yizhen Yu, Yukai Du, Ying Ma, Dongying Zhang, Jiaji Wang
  Addictive Behaviors.2014; 39(3): 744.     CrossRef
• Internet Addiction and Health Behaviors & Mental Health among Adolescents - The 2010 Korean Youth Risk Behavior Web-based Survey
  Dae-Hwan Kim
  Korean Journal of Health Education and Promotion.2013; 30(2): 1.     CrossRef

Background
Influenza is one of the most important diseases that should be monitored for its activities and antigenic changes throughout the world. In Korea, there is a nationwide influenza surveillance system in which 649 sentinel clinics and hospitals (selected by the regional population distribution) have participated. However, there were a few crucial problems due to the low level of participation in the system and the time consuming process of collecting laboratory diagnosis results. To increase the participation and Influenza-Like Illness (ILI) case reporting rate, the internet reporting system of the influenza surveillance was introduced. Methods: The surveillance data obtained through online were analysed and a questionnaire survey was conducted to sentinel physicians. Results: The average annual participation rate was 53% in the season 2001∼2002 and it was increased to 61.8% in 2002∼2003. After we introduced the internet reporting system, the annual participating rate rose up to 74.0%. The average annual reporting rate of ILI was 6.9%, 6.6% and 11.4% in the season 2001∼2002, 2002∼2003 and 2003∼2004, respectively. The utility rate of internet reporting system was 62.4%. According to the questionnaire survey (n=109), 57.8% of sentinels answered that the change of reporting system helped to promote the participation rate to the influenza surveillance attributing it to the public advertisement (46.0%) and the convenience of the internet reporting system (30.2%). Conclusion: By introducing the internet reporting system which enhances the influenza surveillance, higher rate of sentinel participation can be achieved.

Residents in family medicine often have difficulty of gathering to have a conference when they are sent to different hospitals according to training programs. From 2001, for resident conference of family medicine in pohang hospital and gyeongju hospital, dongguk university medical center, an Internet-based video conference system was used for video conferences. The Internet-based video conferences for the members who work at difference hospitals had the same effects as they gather at one place. In addition, the participants could lower the burden of preparing the presentation, listen to the presentation lively, and have a discussion with questions and answers immediately, enhancing the efficiency of conferences. They also could have a sense of affinity as they talk face to face. We reported this case as the application cases and effects of Internet-based video conferences. (J Korean Acad Fam Med 2007;28:375-378)

Background
: Suicide is one of the ten largest causes of death in the world. The rate of suicide is recently significantly increasing in Korea and the rate is relatively high, particularly in adolescence. The purpose of this study was to support the establishment of appropriate measures for prevention of suicide through a better recognition of suicide and to investigate the factors that lead to suicide in adolescence with high school students who have large risk factors of suicide due to entrance examination, future courses, etc.

Methods : A questionnaire regarding the factors influencing the impulse of suicide was conducted to 770 high school students in eight high schools in Seoul and local areas between June 1 and July 31, 2005. Suicidal impulses was checked by SSI (scale for suicidal ideation). Depressive mood and internet addiction degrees was evaluated by BDI (Beck's depression inventory) and IAS (internet addiction scale), respectively.

Results : The final subjects of the study were 719 (93.3%) high school students among 770 students in eight high schools in Seoul and local areas, excluding 51 (6.6%) students with insufficient response. There were, 362 (50.3%) male students and 357 (49.7%) female students. Among the total 443 (61.6%) of the subjects had a high risk of suicide. The risk was high in subjects whose parents were divorced, who solved their difficulties by themselves, either expressed suicidal ideation to friends or not expressed suicidal ideation, knew an suicidal internet site and had freguent visits to the internet site. And alcohol experience, drug abuse, BDI and IAS were also connected with a high risk of suicide (P＜0.05). Marital status of parents, resolution of problems, expression of suicidal ideation, BDI and IAS were independent factors affecting SSI (OR= 3.7, 0.7, 0.8, 2.4, and 1.6, P＜0.05) in logistic regression analysis.

Conclusion : High suicidal risk is associated with complex factors. We have discovered several causes which augment the impulse of suicide in adolescence. They are parent's divorce or separation, an expression of suicidal ideation, depressive mood, and the extent of internet addiction, etc. Therefore in order, to prevent adolescent suicide, a unified personal, family, and social efforts are required.

Background
: Although smoking hazards are acknowledged worldwide, recent study of Korean teenage smokers shows that students' first smoking experiences are occurring at younger ages. Therefore, we have developed an internet-based smoking prevention program, and assessed the effectiveness of the self-administered internet program by comparing with traditional lecture.

Methods : Between April and June of 2004, 463 female eighth-grade students at a middle school were divided into two groups. One group (n=252) received the lecture-based smoking prevention education by an expert, while the other group (n=212) learned themselves via the internet program. Prior to both smoking prevention programs, the students filled out questionnaires about their basic information. One month after their education, the students were tested on the information included in the programs without prior notice and filled out another questionnaire on the level of comprehension, satisfaction and other factors.

Results : According to the pre-education questionnaire, the percentage of current smoking rate was 2.8%, and the first smoking experience was largely between the sixth and seventh grades. When comparing the scores of self-administered internet education with that of the lecture, the mean scores were 56.7 and 57.8, respectively, which was not significantly different (P=.267). The survey on comprehension, satisfaction, and other factors did not show any significant difference between the two groups.

Conclusion : There was no significant difference between the internet-based program and the lecture-based one, in terms of effectiveness as well as comprehension, satisfaction, and other factors. Considering that the internet-based program is not restricted by time or location, it will no doubt be an effective tool in teenage smoking prevention programs.

Background
: Nowadays the addictive use of internet is becoming a serious social and health problem. The authors performed a study in PC bang users to evaluate the prevalence of addictive internet use and the association between addictive internet use and behavioral and psychological factors.

Methods : A face-to-face interview survey of 900 Korean internet users at six PC-bangs was performed between 11th and 19th of December, 2002, using standardized questionnaires composed of Young's internet addiction scale, scale of unwillingness to communicate, patient problem questionnaire for screening depression and anxiety, and questions asking internet using patterns and socio- demographic factors.

Results : Of the final 888 participants, 3.4% were identified as addictive users and 41.3% as over-users of internet service. The subjects who were male, unemployed, less educated, using internet mainly at PC bang, using internet more frequently, starting or finishing off internet use usually in the morning, using internet service usually for doing games tended to be more addictive users of internet (P＜0.05). In proportional odds model analysis, increasing duration of internet use (OR=1.22; 95% CI, 1.16∼1.30), daily use of internet (OR=2.06; 95% CI, 1.21∼3.51), finishing off internet use between midnight and 6 a.m. (OR=2.00; 95% CI, 1.30∼3.07), anxiety (OR=5.38; 95% CI, 2.86∼10.1), and increasing approach avoidance (OR=1.05; 95% CI, 1.03∼1.08) were significantly associated with a higher degree of internet addiction.

Conclusion : Addictive use of internet should be suspected in a person who uses internet for long time, daily, and over midnight. An active evaluation and management for anxiety are needed among addictive internet users.

Background
: Recently, the number of internet users is rapidly increasing and internet medical counseling for medical information is also becoming frequent. The aim of this study was to assess the responses and accuracy of internet medical counseling, and compare the responses according to years and operating groups.

Methods : The subject websites were 79 websites in August, 2000, and 88 in May, 2002, which operated board-type medical counseling. We questioned a simulated case of an acute dermatologic disease. Then we analysed the response rate, the time taken to reply and the accuracy of reponses.

Results : The number of websites that answered the question was 38 (48.1%) in 2000, and 73 (83.0%) in 2002. The response rate was significantly higher in 2002 than 2000. Time to reply was significantly shorter in 2002 than 2000. The response rate in hospital or clinic groups was higher than in other groups. The rate to make a correct diagnosis was significantly higher in 2002 than 2000. The rate to mention prognosis and necessity of intensive treatment was significantly higher in 2002 than 2000.

Conclusion : The response rate was higher 2002 than 2000. Time to reply and the accuracy of answer improved in 2002. The response rate was higher in hospital or clinic group than in other groups.

Background
: In spite of the harmfulness of smoking, the smoking rate of adult males is high in Korea and those of adolescents and women have risen recently. Although the number of smoking-cessation clinic has risen year by year in Korea, it is not easy for a smoker to attend because of time and economic constraints. This project was performed to allow easy access to on-line smoking counselling center on the internet.

Methods : Smoking cessation homepage (www.xsmoke. net) containing smoking counselling and e-mailing services was developed by Namo web editor, Photoshop 7.0, and MySQL database program.

Results : This program was divided into two major categories: part one was a library of various kind of information on smoking such as articles, lecture notes, pictures, slides, mp3 and motion files. The other part was an autonomous smoking cessation prescription program. This program analyzed smokers' smoking pattern (using WHY test), nicotine addiction level (using Fagerstrom score), stress level (using BEPSI test), and smokers' confidence level. After the input of smoker's history by the applicant, the program showed its smoking cessation prescription automatically and required to give and decide on a quitting day. The next step was automatic e-mailing service containing information on smoking cessation methods.

Conclusion : Internet smoking cessation center that provides a library of smoking cessation materials, automatic prescription and e-mailing program has been developed for Korean smokers.

Background
: Internet use is taking place as a necessary part in modern life. Recently, internet use among adolescents has bocome a prominent social problem. In accordance with assessment of internet using pattern and addiction, this study analyzed addiction-relating factors. According to analysis of intimate relating factor, this study attempted to provide appropriate countermeasure.

Methods : The author had performed physical examination on the subjects on May, 2001. The subjects were elementary, middle, and high school students. Among them, 913 students were surveyed with questionnaires. Among the 913 students, elementary school students were 222, middle school 369, high school 291, and 31 did not complete the survey. Addiction-relating factors were sex, age, frequency, mostly connected web-site, time, and place. Young's scale was used as internet addiction assessment, 70 points, and above were used as criteria for internet addiction.

Results : There were 32 addicted students among the subjects. By sex, male students were 7, female students 25. By age, elementary school student was 1, middle school students 9, and high school students 22. In frequency, 424 students used the internet more than 5 times per week among all subjects. 30 students used the internet more than 5 times per week among addicted students.

Conclusion : Internet use of chatting site is an intimate addiction-relating factor. Therefore, substitute activity which can reduce computer using time, and frequency should be encouraged. Especially, avoiding chatting site is considered a preventive methive of addiction during the computer using time.

Background
: After the World-Wide-Web(www) appeared, history has abruptly fallen in the new era of the Internet. In Korea, after the first medical internet site appeared, there was a major development in the WWW. But the quality and quantity of the web-page remains in infancy. Therefore, through the analysis of the Korean medical internet sites on present status, direction for development of Korean medical internet sites can be made.

Methods : From April 1st, 1999 to June 30th, 1999 in the Korean web sites, we visited 1044 sites. They included “Medmark Korea: representing medical search engine, “Eulji medical library” in the Eeulji Medical College Hospital, and the medical sites of the “Yahoo Korea”, ‘naver.com”, and “simmani.com”. Through this internet search, the information about locations, first publication year, classification by characteristics of homepage, speciality, web service form was obtained. Among these sites, aquiring from insufficient source further, questions were sent to the webmasters of 143 websites by e-mail. The questions included 7 items on the characteristic of webmasters, 8 items on the general characteristics of internet sites, 8 items on the contents, and their own comments.

Results : The occupation of webmaster was as follows: were physicians 94.4%, were made, According to age distribution, those in their thirties was 48.2%, and forties, 33.3%. Among the 521 websites confirmed, there were 44 sites in 1995, 151 in 1996, 237 in 1997, and 79 in 1999. According to the distribution of location, metropolitan areas including Seoul, Inchon, Kyonggi occupied 68.9% among total. The main portion of the intentional visitors was ordinary people comparing 39.2%, members 9.8%, and physicians 7.7%. Concerning the purposes of publication, 38.7% of websites intended for health education to citizens, 31.0% for publicity of hospital or organizations, and 15.5% for exchange of information between members. For the most significant contents, 26.6% focused on the common-sense health issues, 35.7% on exchange of special medical information, 8.4% on education data for medical students, and 13.3% on publicity of hospitals. For the update interval, 22.0% renewed their sites within 1 week, 22.75 in 1 month, 23.4% in 3 months, and 20.6% in 6 months. For the effectiveness of homepage, the rate of ‘good’ and ‘very good’ response was 52.8%

Conclusion : Our investigation showed that medial internet sites are lead by those in their thirties and forties. Web sites was concentrated to metropolitan areas where informational infrastructure was well developed. It is emphasized that efforts to informationalization by are needed by, governmental medical database systems should be established, and that the guidelines which enables validity of medical information should be set forth.

Background
: The goals of this study are to evaluate the propensity to depression in Korean internet users associated wit internet using environment and attempt to aid proper management of internet users in the field of family practice.

Methods : A group of 1,674 subjects who replied to internet research were selected from March 26 to 28, 1999. Making use of CES-D-K for Korean internet users, we investigated t propensity to depression. At the same time, general characteristics, internet using environmental characteristics were investigated and their relationship was assessed.

Results : The CES-D-K score was 16.19. The CES-D-K score was significantly higher in females, in younger age and low education level group(P<0.001). There was no significance between CES-D-K score and region. In internet using environmental characteristics, the CES-D-K score was significantly higher in low velocity users, long internet using time per day group (P<0.001). There was no significance between CES-D-K score and internet using year.

Conclusion : There was a significant correlation between internet using velocity, internet using time per day and the propensity to depression. Therefore, family physician should think about the correlation of the propensity to depression and internet using environment, if internet users have symptoms of depression.