background: this study investigates whether the amount of time that korean adolescents spend on the internet per day is related to their weight status. methods: for this purpose, we analyzed data from the 2009 korea youth risk behavior web-based survey-v (kyrbws-v), in which 72,399 students from the 7 th to the 12 th grade participated. we assessed the relationship between the amount of time sp...

background: the purpose of this study was to investigate the association between physical inactivity and academic record in korean adolescents. methods: adolescent students from the first grade of middle school to the third grade of high school (n=75,066) participated in the 5th korea youth risk behavior web-based survey project in 2009. the association between physical inactivity and academic ...

the purpose of this study was to examine whether the frequency of breakfast consumption was related to academic performance in healthy korean adolescents.we analyzed data from the seventh korea youth risk behavior web-based survey conducted in 2011, in which 75,643 adolescents from school grades 7-12 participated. we assessed the association between the frequency of breakfast consumption (per w...

background: the pregnancy was a risk factor for excessive weight gain for women. however, there is no information about the prevalence of obesity and its relationship with a history of pregnancy in girls. therefore, the purpose of this study was to investigate differences in the prevalence of obesity in adolescent females with a history of pregnancy and fac­tors associated with it, in korea. me...

background: the purpose of this study was to examine whether the frequency of breakfast eating was related with overweight/obesity in korean adolescents. method: we analyzed the data collected in the 5 th kyrbws, in which 72,399 adolescents participated in 2009. we assessed the association between frequency of breakfast eating and body mass index by using multivariate logistic regression analys...

Data Resource Profile: The Korea Youth Risk Behavior Web-based Survey (KYRBS) Yoonjung Kim, Sunhye Choi, Chaemin Chun, Suyeon Park, Young-Ho Khang and Kyungwon Oh* Division of Health and Nutrition Survey, Centers for Disease Control and Prevention, Cheongju-si, Korea, Department of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea and Institute of Health ...

Childhood and adolescence are critical periods that affect adults' health status. Therefore, the factors influencing the health of children and adolescents should be analyzed. In Korea, a wide range of youth-related health data has been obtained, both on the regional level and on the national level. This report summarizes the current status of studies related to the health of Korean children an...

background: despite growing interest in the public health of sexual minority, youth around the world due to the high rates of suicidal ideation and attempts in this population, few studies on the sexual orientation of korean adolescents have been conducted. therefore, this study investigated the relationship between the sexual orientation of korean adolescents and their suicide-related behavior...

Methods In 2012, 63 688 adolescents participated in the 8th Korea Youth Risk Behavior Web-Based Survey (KYRBWS-VIII) project. The relationship between sleep duration and school performance was evaluated by multivariate logistic regression analysis after adjustment for covariate variables, including body mass index, age, parental education, economic status, mental stress, smoking, alcohol consum...