Studies on how smoking media literacy (SML) is associated with susceptibility to smoking among adolescents in South Korea and Vietnam are scarce. Thus, we examined the association of SML with susceptibility to smoking among adolescents in these countries to initiate a collaborative global health program. In total, 460 adolescents (Vietnam: 277,…

A later school start time policy has been recommended as a solution to adolescents' sleep deprivation. We estimated the impacts of later school start times on adolescents' sleep and substance use by leveraging a quasi-experiment in which school start time was delayed in some regions in South Korea. A later school start time policy was implemented…

Although the rate of sexual intercourse among adolescents has increased in Asian countries, including Korea, many sexually active adolescents still do not use contraception. The aim of this study was to identify the risk factors for contraceptive nonuse among adolescents using decision tree analysis of the 2018 Korea Youth Risk Behavior Survey…

Genetics, environment, and their interactions impact autism spectrum disorder etiology. Smoking is a suspected autism spectrum disorder risk factor due to biological plausibility and high prevalence. Using two large epidemiological samples, we examined whether autism spectrum disorder was associated with prenatal paternal smoking in a Discovery…

Objective: Numerous studies have examined the effectiveness of graphic health warnings on different population segments, including male and female smokers, in an effort to reduce health disparities in Europe and the USA. However, research exploring the impact of gender-specific tobacco control interventions on Asian smokers is lacking. This study…

In this study, the 2016 Korea National Health and Nutrition Survey was used to determine if there was a difference in mental health according to the group's (Korea's Economic Vulnerability Group and Normal Groups) health behaviors. The subjects of the study were 367 economic vulnerability group and 708 normal groups, and data analysis was…

This study purpose was to investigate sex differences in multilevel factors associated with smoking experimentation and age of initiation among Korean adolescents. Based on the ecological model, this cross-sectional study used data from the 2016 Korea Youth Risk Behavior Web-Based Survey (N = 65,528). Among 33,803 males (51.6%) and 31,725 females…

The purposes of this study were to compare the use of contraception by monocultural and multicultural adolescents and identify the multidimensional factors in an ecological model. This study was cross-sectional design with a secondary data analysis using national data from the 2018 Korea Youth Risk Behavior Survey, including 3,031 participants (81…

The characteristics of and risk factors associated with binge drinking among South Korean and American adolescents were identified in this study. Data on adolescents in the 9th to 12th grades were extracted from two nationwide data sets: the Korea Youth Risk Behavior Web-based Survey System and the U.S. Youth Risk Behavior Surveillance System.…

Smoking and obesity are chief causes of mortality, morbidity, and medical expenditure. However, few studies have investigated the linkage between subjective obesity status and smoking behavior. This study examines whether females in a normal body mass index range who perceive themselves as obese are more likely to smoke than those who do not…

Background: Multicultural families and foreign residents are rapidly increasing in Korea. Thus, the proportion of children and adolescents from minority racial/ethnic groups are also increasing, and there are concerns about adolescents who fail to adapt to school and show low academic achievement and poor health status. Objective: This study aimed…

Based on Hirschi's social control theory (1969), this study examined the relationship between attachment (an element of social bonds) and the onset of substance use among South Korean adolescents. Using discrete-time logistic regression, the study investigated how attachment to parents, teachers, and close friends was associated with the timing of…

This study examined psychosocial factors influencing smoking intention in Korean male middle school students. We used a descriptive cross-sectional design, based on the biopsychosocial model, to analyze data from 309 male adolescents aged 14-16 years in middle school. Of the psychological factors examined, stress and risk-taking tendency were…

The aim of this study was to identify smoking cessation failure subgroups among Korean adolescents. Participants were 379 smoking adolescents who joined a smoking cessation program. A questionnaire and a cotinine urine test were administered before the program began. Three months after the program ended, the cotinine urine test was repeated. A…

Objective: To identify levels of moderate-intensity physical activity (MPA) and vigorous-intensity physical activity (VPA) in a representative sample of college students in six East Asian economies and examine their relationship with weight, alcohol consumption and cigarette smoking. Design: Cross-sectional survey. Setting: College students…