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HOME > Epidemiol Health > Volume 39; 2017 > Article
Data Profile
The current status of health data on Korean children and adolescents
Eunyoung Lee*orcid, Dahye Baik*orcid, Yoon Park*orcid, Moran Kiorcid
Epidemiol Health 2017;39:e2017059.
DOI: https://doi.org/10.4178/epih.e2017059
Published online: December 26, 2017

Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea

Correspondence: Moran Ki  Department of Cancer Control and Policy, Graduate School of Cancer Science and Policy, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang 10408, Korea  E-mail: moranki@naver.com
*Lee, Baik, and Park contributed equally to this work as joint first authors.
• Received: November 14, 2017   • Accepted: December 26, 2017

©2017, Korean Society of Epidemiology

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • 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 and adolescents. Data for which open access is offered include the Korea Youth Risk Behavior Web-based Study, the Panel Study on Korean Children, the Korean Youth Panel Survey, the Korean Children and Youth Panel Survey, and the Student Health Examination. In addition, the Health Examination of Korean Youth Outside of School, the Korean Children and Adolescents Obesity Cohort Study, the Korean Children’s Environmental Health Study, the Korea Youth Media Use and Harmful Environment Survey, the Comprehensive Survey of Korean Youth, and the Multicultural Adolescents Panel Study are summarized.
Childhood and adolescence are critical periods that affect adults’ health status and related habits, as well as being transitional periods of growth from childhood to adulthood. Therefore, the factors influencing the health of children and adolescents should be analyzed so that related indices can be developed for domestic and global comparisons. In our modern, dynamically changing society, proper tools are needed to diagnose changes in youth-specific conditions pertaining to physical and mental health; living circumstances, including home, school, and other public spaces; and any circumstances causing behavioral changes during early life.
Children and adolescents are continually growing, making it important to collect longitudinal health data from them, including biological samples [1]. The Trim and Fit Program in Singapore was an example of an active intervention program for children’s health in another country. This was a weight loss program administered through the Ministry of Education between 1992 and 2007 targeting students in elementary school through high school, and was identified by the World Health Organization as an effective method of improving children’s health [2]. The US, Japan, Denmark, and Norway have implemented large-scale birth cohort studies consisting of more than 100,000 participants that focus on environmental factors, although these cohort studies have different target follow-up ages [3].
In Korea, a wide range of youth-related data has been—and continues to be—obtained on the national level to promote the capacity of youth for development and healthy growth by providing them with various opportunities. To support youth properly, it is necessary to understand their health status and factors in their surrounding environment with direct, indirect, short-term, and long-term impacts on their lifespan. Based on a fundamental statistical analysis of the findings of youth surveys implemented through a dedicated surveillance system of adolescents in Korea, general (standard) youth indicators can be identified as a tool for establishing and developing youth policy. This report summarizes the current status of comprehensive surveys of Korean children and adolescents and the health-related data provided by these surveys.
There are 11 surveys covering the following broad topics related to health and wellness: physical health, health-related lifestyle factors, exposure to harmful environmental factors, social background, and individual development (Table 1). Results regarding children’s personal health status identified through health examinations and specific tests are included in the category of physical health, as well as individual and family medical histories. The category of health-related lifestyle factors includes the following subcategories: the use of substances, such as tobacco, alcohol, harmful chemicals, or drugs; sexuality, including information about sexual behaviors, partners, use of contraceptives, and experiences of pregnancy, abortion, and sexually transmitted infections; diet, including information about dietary habits and results from 3-day dietary assessments; physical activity, which refers to information about the frequency and extent of regular activity; weight control, which includes personal recognition and perceptions of the issue of weight and fitness; hygiene, which refers to the habits and cognitive skills needed to keep oneself clean (including dental hygiene); psychological status, which includes information on stress, emotions, and mental disorders; sleeping habits; health aids (e.g., the use of glasses); records of immunization and medication use (steroid, analgesic, antifebrile, antibiotics); and an allergy-related subcategory that investigates environmental health in youth. The category of exposure to harmful environmental factors includes the following circumstances that youth may encounter: media consumed through any online route, such as the Internet or mobile devices; exposure to nightlife establishments, such as pubs, karaoke establishments, and clubs; the indoor/outdoor environment, including exposure to environmental elements such as pollutants or toxic substances; safety and violence, including not only the awareness of being safe from direct harm, but also exposure to any kind of violence in any place; and radiation, which was specifically included in an environmental health study. The category of social background includes the following 3 separate dimensions of social life: domestic life, which refers to the home environment as well as relationships and any conflict with family members; school life, which includes any issues and circumstances that occur in school; and extracurricular life, which describes other ways that students spend their time, such as academic tutoring, physical activities, leisure, and part-time work. The category of individual development incorporates a wide range of developmental considerations influenced by the surrounding environment, such as physical growth, which pertains to the physical changes experienced during adolescence; intellectual development, which includes study habits and performance in school; social development, which includes self-perception and emotional stability; and career planning.
All of the surveys described in this study are ultimately related to the physical, mental, and behavioral health of youth (Table 2).
Korea Youth Risk Behavior Web-based Survey
The Korea Youth Risk Behavior Web-based Survey (KYRBS) has been conducted annually since 2005 to assess trends in health-risk behaviors among youth in Korea [4]. The target population of KYRBS is students in middle and high schools nationwide. Approximately 70,000 students are sampled from 400 middle schools and 400 high schools for the survey. It uses a multi-stage cluster sampling design, in which the sample was changed every 3 years from the beginning of the study through 2010, and every year since 2011.
The KYRBS has several strengths. It is an ongoing survey with nationwide samples of youth in Korea, and shows a very high response rate (over 95%) [5]. These high response rates have been possible because the survey is administered by the Ministry of Education, with students completing a web-based survey during class.
However, the KYRBS has some limitations. First, it is not representative of all youths, since the respondents are limited to students attending school. Second, the responses are self-reported, so participants may over-report or under-report their behaviors.
Panel Study on Korean Children
The Panel Study on Korean Children (PSKC) is a long-term study tracking the growth process of Korean children. This is the first national panel study on newborn babies in Korea. It collects and provides, at a national level, cross-sectional and longitudinal data. It deals with data from the year 2008, when the panel children were born, to the year 2027, when they will be 19 years old. The PSKC includes data on children’s growth, development, childrearing environment, and experiences in child care centers, kindergartens, and schools.
The PSKC sampled 2,150 Korean babies born in 2008 using a stratified, multi-stage sampling technique, in which Korea was divided into the 6 districts of Seoul, Gyeonggi/Incheon, Chungcheong/ Gangwon, Gyeongbuk, Gyeongnam, and Jeolla. Then, medical institutions that deliver babies were identified, and families whose babies were delivered at those institutions were sampled.
The PSKC modifies its content annually, considering the children’s ever-changing growth, development, and environment. Since 2015, when the children entered primary school, PSKC has included content that is related to school life. By implementing performance tests to assess their development, the PSKC complements the weaknesses of regular questionnaires and explores the characteristics of children’s development more deeply [6].
Korean Youth Panel Survey and Korean Children and Youth Panel Survey
The Korean Youth Panel Survey (KYPS) was a longitudinal survey carried out to identify and explain the behaviors and changing perceptions of adolescents. The Korean Children and Youth Panel Survey (KCYPS) was conducted after the KYPS. It included more panels and research content than the KYPS to study the diverse aspects of the growth and development of youth based on previous research experience [7].
The KYPS and KCYPS are among the major longitudinal studies that have been conducted in Korea and are considered to be comprehensive studies that provide an overview of the growth and development of Korean youth. These 2 surveys used a multiple-point prospective panel design, which involves multiple panels that are investigated at least twice at different times. This panel design has the characteristic of time continuity, which allows for causality and the developmental process of youth to be seen more clearly. During the survey, if a panel left the study, the study was continued by adjusting the panel with a weighted value.
The KYPS built a set of panel data by analyzing the changes in living patterns of youths after they entered middle/high school by following 2 panels (a panel in grade 4 of elementary school and a panel in grade 2 of middle school).
The KCYPS followed 3 panels (grades 1 and 4 of elementary school and grade 2 of middle school) for 7 years in order to include and observe the transitional periods of these students (elementary to middle school, middle school to high school, and high school to university). The KCYPS included many questions from various domains to ensure that the study was comprehensive. Questions for which the responses can change often, such as cell phone and internet use and adaptation to school life, were asked every year, whereas questions for which responses do not change very often, such as emotional development, self-esteem, and study habits, were asked every 2 or 3 years.
Student Health Examination
The legal basis of the Student Health Examination is the Articles 7, 7-2, and 7-3 of the School Health Act. The School Physical Examination Regulation was established in 1951. The School Health Act was transformed from a physical examination system to a health screening system in 2005 [8].
The current Student Health Examination, which is conducted as a sample survey, started in 2009. Survey subjects are sampled in increments of whole school years from elementary school to high school for the physical development and health survey, and in 4 groups defined according to the school year (grades 1 and 4 in elementary school, grade 1 in middle school, and grade 1 in high schools) for the health check-up.
Stratified cluster sampling is applied by 17 cities and provinces throughout Korea for the allocation of samples. Health check-ups are carried out at selected institutions, including examinations of the musculoskeletal system, eyes, ears, nose, skin, and oral cavity, as well as tests for various pathologies. A questionnaire-based health survey investigates health behaviors including dietary habits, sleep, and physical activity. Distinct questionnaires are used for elementary school students and for middle and high school students.
The Student Health Examination has the strength of being representative of students across the country and of being regularly conducted, enabling continuous trends to be observed. Limitations include the fact that health check-ups are conducted only for students in 4 grades, including a limited range of conditions, and the cross-sectional nature of the data.
Health Examination of Korean Youth Outside of School
The Health Examination of Korean Youth Outside of School is a national support service that has been conducted for self-supporting youth since 2016. The legal basis of this health examination is the Act on Supporting Out-of-School Youth enacted in 2014. The organization that conducts these examinations, K-dream, is supported by the Ministry of Gender Equality and Family and the Korea Youth Counselling and Welfare Institute, and contributes to the monitoring of the health status of out-of-school youths by collecting health data [9].
The targeted subjects are defined as any youth aged 9 to 18 who has been absent over 3 months after the entrance or postponement of schooling; who has been expelled, withdrawn, or has dropped out for oneself; and who has not been promoted to an advanced school. Once the National Health Insurance Service (NHIS) confirms that an applicant is qualified for this health examination, the subject can visit an NHIS online system known as HealthiN (https://hi.nhis.or.kr) to search available designated examination centers.
In the health examination, a questionnaire is administered before the medical check-up items are assessed. If necessary, examinees can receive counseling from a medical specialist for concerns including mental health.
Korean Children and Adolescents Obesity Cohort Study
This cohort started with first graders in 4 elementary schools in the city of Gwacheon in 2005. Continuous follow-up is in progress after expansion of the cohort to include 7 more schools in the Junggu area in Seoul and the southwestern area of Gyeonggi province. A cohort with morbid obesity was additionally established from 2012 to 2014.
In this cohort, sexual maturity ratings are obtained and dietary assessments for 3 days by 24-hour recall are conducted. The questionnaire includes items on topics such as dietary habits, health status, exercise, familial environment, and weight management.
The Korean Children and Adolescents Obesity Cohort Study collects longitudinal data and provides evidence to identify risk factors for pediatric obesity. However, it is geographically limited to a few areas and is not wholly representative of the pediatric population.
Korean Children’s Environmental Health Study
This study is based on Article 15 of the Environmental Health Act. It consists of a main cohort, which is used to calculate the incidence of diseases, and a core cohort, which is focused on identifying the causes of disease. It aims to recruit 100,000 pregnant women, including 70,000 pregnant women over the 5-year period starting in 2015. In the core cohort, a 20-year follow-up is conducted.
In the main cohort, questionnaires for pregnant women, collection of biological specimens, clinical tests, and follow-up examinations of infants are carried out. In the core cohort, questionnaires for pregnant women, assessment of the surrounding environment, analysis of environmental pollutants through blood tests and urinalysis, health check-ups of pregnant women, genetic tests to identify association between genes and environmentally-linked diseases, a survey of delivery outcomes, and follow-up examinations of infants are conducted.
The Korean Children’s Environmental Health Study is a prospective cohort study that follows up children and investigates their exposure to hazardous environmental factors and the effects of those factors on their health from infancy to adolescence, in order to identify causal relationships between the exposure and disease and to establish preventive solutions.
Korea Youth Media Use and Harmful Environment Survey
The Korea Youth Media Use and Harmful Environment Survey was specifically designed to monitor youth’s environment, with a focus on exposure to harmful factors that may threaten their safety or affect their behavior. The samples of this dataset inclusively comprise school students and juveniles in crisis, such as runway adolescents who have registered at designated shelters or juvenile delinquents under probation or in prison.
Comprehensive Survey of Korean Youth
In contrast to studies with specific topics, the Comprehensive Survey of Korean Youth focuses on monitoring trends in various domains that may affect youth life with a relatively large scope. This survey also collects data from the caregivers or parents who live together with the youth respondent. It provides information that is useful for understanding youth because the role of parents and the domestic atmosphere may strongly affect the development of youth as they grow up. Since the sampling unit is a household with a residential address, the samples are composed of school students and youth outside of school.
Multicultural Adolescents Panel Study
As the number of multicultural families grows in Korea, there is a need to develop and increase the capacity to accept multiculturalism and to integrate these families into Korean society. Based on this need, the Multicultural Adolescents Panel Study (MAPS) was established to investigate the development of adolescents with a multicultural background [10].
The MAPS started in 2010 as preliminary research and its first stage of research was completed in 2012. The objective was to collect longitudinal data on multicultural adolescents. Starting in 2013, the MAPS has conducted its second stage, extending through 2017 [10]. The objective of this stage was to follow multicultural adolescents and to identify changes in their development and the causes of them. Although the objectives of the 2 stages were different, this study can be considered to be a consecutive study since the initial panels were the same.
Since 2011, the MAPS has conducted surveys and focus group interviews with its panels. For the interviews, pairs of multicultural adolescents and their mothers were selected from 4-5 households among the survey participants from different regions.
Open-access data are listed in Table 3. Raw data can be obtained from the website of the administrative agency that has ownership of the data. Not all data have open accessibility. However, statistical summaries and analyses of all data are provided in periodic reports released to the public.

The authors have no conflicts of interest to declare for this study.

Supplementary material (Korean version) is available at http://www.e-epih.org/.
Table 1.
Health-related surveys of Korean youth
Surveys Physical health
Health-related lifestyle factors
Exposure to harmful environmental factors
Social background
Individual development
Medical check-up Medical history Sexual maturity rating Genetic testing Follow-up of infants Use of substances Sexuality Diet Physical activity Weight control Hygiene Psychological status Sleeping habits Health aids Records of immunization Medicines Allergy-related Media/Internet/Mobile Nightlife establishment Indoor/Outdoor environment Safety/Violence Radiation Domestic life School life Extracurricular life Physical growth Intelligence Social/Cultural/Emotional Career planning
Korea Youth Risk Behavior Web-based Survey
Panel Study on Korean Children
Korean Youth Panel Survey
Korean Children and Youth Panel Survey
Student Health Examination
Health Examination of Korean Youth Outside of School
Korean Children and Adolescents Obesity Cohort Study
Korean Children’s Environmental Health Study
Korea Youth Media Use and Harmful Environment Survey
Comprehensive Survey of Korean Youth
Multicultural Adolescents Panel Study
Table 2.
Overview of health-related surveys/databases of youth
Korea Youth Risk Behavior Web-based Survey Panel Study on Korean Children Korean Youth Panel Survey Korean Children and Youth Panel Survey Student Health Examination Health Examination of Korean Youth Outside of School
Purpose To investigate health-risk behaviors of Korean youth and to monitor their behaviors to help them build healthy habits To provide data about the development of Korean children and to contribute to childcare and education policies for their wellbeing To identify changes in behaviors and perceptions in adolescence, and the causes of these changes by observing the same panels during their growth To investigate comprehensive aspects of physical and psychological changes in children and youth, and the causes of these changes by observing the same panels during their growth To analyze student health, including physical development and disease status, and to develop a credible index of student health To support youths outside of school by monitoring their health status for the prevention and early detection of diseases during their development
Survey period Since 2005 From 2008 to 2027 From 2004 to 2008 for grade 4 of elementary school From 2010 to 2016 Since 2006 Since 2016
Annually Annually From 2003 to 2008 for grade 2 of middle school Annually Annually Once every 3 yr (if the status of a subject remains an out-of-school juvenile)
Annually
Geographic areas Nationwide, 17 cities and provinces Nationwide, 6 zones across the country Nationwide, 12 cities and provinces Nationwide, 16 cities and provinces 17 cities and provinces across the country Nationally, 514 designated detection centers
Population sampled Students in middle and high school Newborn babies in 2008 Fourth-graders in elementary school and their parents First-graders and fourth-graders in elementary school and their parents Students in all grades in elementary, middle, and high schools Out-of-school juveniles who register and sign up for the health examination and screening program
Children in the second grade of middle school and their parents Children in the first grade of middle school and their parents
Sample size range As of 2016,798 schools 65,528 students 2,150 newborn babies across the country As of 2004,2,844 people (elementary school grade4 panel) As of 2010, elementary school grade 1 panel: 2,342 people; elementary school grade 4 panel: 765 schools across the country (2016) 82,883 students (survey and physical development) As of 2016,6,986 non-institutionalized juveniles outside the school system
As of 2003,3,449 people (middle school grade 2 panel) 2,378 people; middle school grade 1 panel: 2,351 people 27,671 students (health check-up, grades 1 and 4 of elementary school, grade 1 of middle and high schools)
Representative Weighted to be representative of the population of Korean youth Stratified multi-stage sampling Weighted to be representative of Korean youth of each panel grade, with a lapse in time from the base grade in the first year Weighted to be representative of Korean children and youth of each panel grade, with a lapse in time from the base grade in the first year Stratified cluster sampling across 17 cities and provinces Not representative
Methods Survey managed by trained teachers Questionnaire Repeatedly investigating the survey for the same panels Repeatedly investigating the survey for the same panels Physical development Self-administered questionnaire before health check-up
Anonymously completion of self-administered questionnaires Computer-assisted personal interview through a home visit For youth: group interview in school, individual interview by following up with each person For youth: group interview in school, individual interview by following up with each person Survey Blood, hepatitis testing, tuberculosis testing, and dental condition
Observation, interview, and testing (in-depth study) For parents: telephone interview For parents: telephone interview Health check-up
Survey contents (topics) Analysis of behaviors regarding health-related status, attitudes, and perceptions in Korean youth Characteristics of children, parents, and family Changes of lifestyle and attitudes toward occupational choice, career planning, deviance and so on, which are developing in youth (longitudinal survey) Individual developments, including physical and emotional changes and development, environment at home, among peers, and in the community observed in childhood and adolescence (longitudinal survey) Current status regarding physical development, including body mass index and degree of obesity Health check-ups suitable for life transitions at a young age
Characteristics of childcare and education services Health behaviors such as diet, physical activity, and safety awareness Current status regarding physical development and basic medical condition
Characteristics of local community and child care policies Health status including eyesight, oral, and skin disease Counseling with a professional if needed

Korean Children and Adolescents Obesity Cohort Study Korean Children’s Environmental Health Study Korea Youth Media Use and Harmful Environment Survey Comprehensive Survey of Korean Youth Multicultural Adolescents Panel Study

Purpose To follow up a pediatric obesity cohort until adolescence and to analyze risk factors for childhood obesity and accompanying metabolic diseases To provide a basis for developing a list of hazardous environmental factors for each stage of growth and a scientific foundation for the relationship between environment-related diseases and harmful environmental factors To investigate the harmful factors affecting Korean youth and to identify the status of harmful exposures that may interrupt their healthy growth To investigate diverse factors related to health, everyday life, and social and cultural experiences of Korean youth To follow the development of multicultural adolescents, to identify factors associated with changes in their behavior and thinking, and to contribute to reducing the gap between multicultural and non-multicultural adolescents
Survey period Since 2005 and 2012 (morbid obesity cohort) Since 2015 (for 22 yr) Since 1999 Since 2011 From 2010 to 2017
Annual follow-up Biennially (even-numbered years) Once every 3 yr Annually
Geographic areas 3 regions (Gwacheon city in Gyeonggi province, Jung-gu in the city of Seoul, and the southwestern area of Gyeonggi province) Through invitations for 5 yr starting in 2015, considering the birth rate in metropolitan cities and provinces across the country Nationwide, all 18 cities and provinces Nationwide, all 18 cities and provinces Nationwide, 16 cities and provinces
Population sampled Follow-up of first-graders in elementary school since 2005 Pregnant women invited from obstetrics/gynecology clinics and public health centers Students in school: elementary grades 4-6 and all grades of middle and high school Samples of caregiver(s) and children aged 9-24 who are living with their caregiver(s) at registered residential address Multicultural fourth grade adolescents in elementary school and their parents (especially mothers)
Non-institutionalized juveniles in crisis
Sample size range 4,580 students, including the morbid obesity cohort (2014) 5,000 pregnant women for the core cohort (for 3 yr) As of 2016,15,646 students (elementary to high school) 1,876 juveniles in crisis (ages, 12-19 yr) As of 2014, based on 2,000 residential units: 3,000 children aged 9-24:2,000 caregivers living with the sample children As of 2011,1,625 households by the sampling unit of schools (first) and all multicultural fourth-grade students and their mothers (second) in the selected schools
65,000 pregnant women for the main cohort (for 4 yr)
Representative Not representative Nationwide network of recruiting offices Weighted to be representative of the population of Korean juveniles Weighted to be representative of the population of Korean youth living with caregiver(s) in the same residential unit Weighted to be representative of the population of multicultural adolescents and parents who live in Korea
Methods Questionnaire Questionnaire Survey managed by a trained investigator Survey managed by a trained interviewer who visits the sample family Survey investigating the same panel repeatedly, managed by a trained investigator
Dietary assessment (3 d) Environmental measurement For students: self-administered questionnaire Separate survey for caregiver and youth (ages 9-12,13-24 yr) Panel questionnaire survey
Health check-up Clinical tests For juveniles in crisis: interview Self-administered questionnaire, if needed Focus group interview
Collection of biological samples Genetic tests
Follow-up of infants
Survey contents (topics) Comparison of health status, including body composition and sexual maturity, between obese and normal children Analysis of exposure of pregnant women to hazardous environmental factors and the effect thereof on infants' health Youth exposure to harmful media and environment that can possibly affect lifestyles and social behaviors (time-serial comparison) Youth’s social/cultural background, health-related life behavior, and emotional status (time-serial comparison) Multicultural variables including language and background, individual and environmental characteristics of multicultural adolescents (longitudinal survey)
Follow-up of children with morbid obesity
Table 3.
Data accessibility
Surveys Administrative agency (ownership of data) Periodic report Open accessibility Web address/procedure
Korea Youth Risk Behavior Web-based Survey (KYRBS) Korea Centers for Disease Control and Prevention (KCDC) Yes Yes https://yhs.cdc.go.kr
① Go to KYRBS website → utilizing result → application for the use of primitive data
② Enter email and password → write down the requisition form
③ Check the status of application → download (maximum 3 times)
Panel Study on Korean Children Korea Institute of Child Care and Education (KICCE) Yes Yes http://panel.kicce.re.kr
① Make research proposal
② Submit proposal to http://kicce.re.kr/panel
③ Obtain KICCE’s approval
④ Download data
Korean Youth Panel Survey (KYPS) National Youth Policy Institute (NYPI) Yes Yes http://archive.nypi.re.kr
① Go to NYPI website → Data Archive
② NYPI Panel Survey → KYPS → Questionnaire/Code book/Data
Korean Children and Youth Panel Survey (KCYPS) NYPI Yes Yes http://archive.nypi.re.kr
① Go to NYPI website → Data Archive
② NYPI Panel Survey → KCYPS → Questionnaire/Code book/Data
Student Health Examination Ministry of Education Yes Yes http://www.open.go.kr
① Go to “Open a request”
② Go to “Apply for a request”
③ Log in by creating an account
④ Fill out the request form, designate the receiving institution as the Ministry of Education, and submit it → reply by e-mail
Health Examination of Korean Youth Outside of School Ministry of Gender Equality and Family Yes No
Korean Children and Adolescents Obesity Cohort Study KCDC Yes No
Korean Children's Environmental Health Study Ministry of Environment Yes No
Korea Youth Media Use and Harmful Environment Survey Ministry of Gender Equality and Family Yes No
Comprehensive Survey of Korean Youth Ministry of Gender Equality and Family Yes No
Multicultural Adolescents Panel Study NYPI Yes No
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    Population sampled Students in middle and high school Newborn babies in 2008 Fourth-graders in elementary school and their parents First-graders and fourth-graders in elementary school and their parents Students in all grades in elementary, middle, and high schools Out-of-school juveniles who register and sign up for the health examination and screening program
    Children in the second grade of middle school and their parents Children in the first grade of middle school and their parents
    Sample size range As of 2016,798 schools 65,528 students 2,150 newborn babies across the country As of 2004,2,844 people (elementary school grade4 panel) As of 2010, elementary school grade 1 panel: 2,342 people; elementary school grade 4 panel: 765 schools across the country (2016) 82,883 students (survey and physical development) As of 2016,6,986 non-institutionalized juveniles outside the school system
    As of 2003,3,449 people (middle school grade 2 panel) 2,378 people; middle school grade 1 panel: 2,351 people 27,671 students (health check-up, grades 1 and 4 of elementary school, grade 1 of middle and high schools)
    Representative Weighted to be representative of the population of Korean youth Stratified multi-stage sampling Weighted to be representative of Korean youth of each panel grade, with a lapse in time from the base grade in the first year Weighted to be representative of Korean children and youth of each panel grade, with a lapse in time from the base grade in the first year Stratified cluster sampling across 17 cities and provinces Not representative
    Methods Survey managed by trained teachers Questionnaire Repeatedly investigating the survey for the same panels Repeatedly investigating the survey for the same panels Physical development Self-administered questionnaire before health check-up
    Anonymously completion of self-administered questionnaires Computer-assisted personal interview through a home visit For youth: group interview in school, individual interview by following up with each person For youth: group interview in school, individual interview by following up with each person Survey Blood, hepatitis testing, tuberculosis testing, and dental condition
    Observation, interview, and testing (in-depth study) For parents: telephone interview For parents: telephone interview Health check-up
    Survey contents (topics) Analysis of behaviors regarding health-related status, attitudes, and perceptions in Korean youth Characteristics of children, parents, and family Changes of lifestyle and attitudes toward occupational choice, career planning, deviance and so on, which are developing in youth (longitudinal survey) Individual developments, including physical and emotional changes and development, environment at home, among peers, and in the community observed in childhood and adolescence (longitudinal survey) Current status regarding physical development, including body mass index and degree of obesity Health check-ups suitable for life transitions at a young age
    Characteristics of childcare and education services Health behaviors such as diet, physical activity, and safety awareness Current status regarding physical development and basic medical condition
    Characteristics of local community and child care policies Health status including eyesight, oral, and skin disease Counseling with a professional if needed

    Korean Children and Adolescents Obesity Cohort Study Korean Children’s Environmental Health Study Korea Youth Media Use and Harmful Environment Survey Comprehensive Survey of Korean Youth Multicultural Adolescents Panel Study

    Purpose To follow up a pediatric obesity cohort until adolescence and to analyze risk factors for childhood obesity and accompanying metabolic diseases To provide a basis for developing a list of hazardous environmental factors for each stage of growth and a scientific foundation for the relationship between environment-related diseases and harmful environmental factors To investigate the harmful factors affecting Korean youth and to identify the status of harmful exposures that may interrupt their healthy growth To investigate diverse factors related to health, everyday life, and social and cultural experiences of Korean youth To follow the development of multicultural adolescents, to identify factors associated with changes in their behavior and thinking, and to contribute to reducing the gap between multicultural and non-multicultural adolescents
    Survey period Since 2005 and 2012 (morbid obesity cohort) Since 2015 (for 22 yr) Since 1999 Since 2011 From 2010 to 2017
    Annual follow-up Biennially (even-numbered years) Once every 3 yr Annually
    Geographic areas 3 regions (Gwacheon city in Gyeonggi province, Jung-gu in the city of Seoul, and the southwestern area of Gyeonggi province) Through invitations for 5 yr starting in 2015, considering the birth rate in metropolitan cities and provinces across the country Nationwide, all 18 cities and provinces Nationwide, all 18 cities and provinces Nationwide, 16 cities and provinces
    Population sampled Follow-up of first-graders in elementary school since 2005 Pregnant women invited from obstetrics/gynecology clinics and public health centers Students in school: elementary grades 4-6 and all grades of middle and high school Samples of caregiver(s) and children aged 9-24 who are living with their caregiver(s) at registered residential address Multicultural fourth grade adolescents in elementary school and their parents (especially mothers)
    Non-institutionalized juveniles in crisis
    Sample size range 4,580 students, including the morbid obesity cohort (2014) 5,000 pregnant women for the core cohort (for 3 yr) As of 2016,15,646 students (elementary to high school) 1,876 juveniles in crisis (ages, 12-19 yr) As of 2014, based on 2,000 residential units: 3,000 children aged 9-24:2,000 caregivers living with the sample children As of 2011,1,625 households by the sampling unit of schools (first) and all multicultural fourth-grade students and their mothers (second) in the selected schools
    65,000 pregnant women for the main cohort (for 4 yr)
    Representative Not representative Nationwide network of recruiting offices Weighted to be representative of the population of Korean juveniles Weighted to be representative of the population of Korean youth living with caregiver(s) in the same residential unit Weighted to be representative of the population of multicultural adolescents and parents who live in Korea
    Methods Questionnaire Questionnaire Survey managed by a trained investigator Survey managed by a trained interviewer who visits the sample family Survey investigating the same panel repeatedly, managed by a trained investigator
    Dietary assessment (3 d) Environmental measurement For students: self-administered questionnaire Separate survey for caregiver and youth (ages 9-12,13-24 yr) Panel questionnaire survey
    Health check-up Clinical tests For juveniles in crisis: interview Self-administered questionnaire, if needed Focus group interview
    Collection of biological samples Genetic tests
    Follow-up of infants
    Survey contents (topics) Comparison of health status, including body composition and sexual maturity, between obese and normal children Analysis of exposure of pregnant women to hazardous environmental factors and the effect thereof on infants' health Youth exposure to harmful media and environment that can possibly affect lifestyles and social behaviors (time-serial comparison) Youth’s social/cultural background, health-related life behavior, and emotional status (time-serial comparison) Multicultural variables including language and background, individual and environmental characteristics of multicultural adolescents (longitudinal survey)
    Follow-up of children with morbid obesity
    Surveys Administrative agency (ownership of data) Periodic report Open accessibility Web address/procedure
    Korea Youth Risk Behavior Web-based Survey (KYRBS) Korea Centers for Disease Control and Prevention (KCDC) Yes Yes https://yhs.cdc.go.kr
    ① Go to KYRBS website → utilizing result → application for the use of primitive data
    ② Enter email and password → write down the requisition form
    ③ Check the status of application → download (maximum 3 times)
    Panel Study on Korean Children Korea Institute of Child Care and Education (KICCE) Yes Yes http://panel.kicce.re.kr
    ① Make research proposal
    ② Submit proposal to http://kicce.re.kr/panel
    ③ Obtain KICCE’s approval
    ④ Download data
    Korean Youth Panel Survey (KYPS) National Youth Policy Institute (NYPI) Yes Yes http://archive.nypi.re.kr
    ① Go to NYPI website → Data Archive
    ② NYPI Panel Survey → KYPS → Questionnaire/Code book/Data
    Korean Children and Youth Panel Survey (KCYPS) NYPI Yes Yes http://archive.nypi.re.kr
    ① Go to NYPI website → Data Archive
    ② NYPI Panel Survey → KCYPS → Questionnaire/Code book/Data
    Student Health Examination Ministry of Education Yes Yes http://www.open.go.kr
    ① Go to “Open a request”
    ② Go to “Apply for a request”
    ③ Log in by creating an account
    ④ Fill out the request form, designate the receiving institution as the Ministry of Education, and submit it → reply by e-mail
    Health Examination of Korean Youth Outside of School Ministry of Gender Equality and Family Yes No
    Korean Children and Adolescents Obesity Cohort Study KCDC Yes No
    Korean Children's Environmental Health Study Ministry of Environment Yes No
    Korea Youth Media Use and Harmful Environment Survey Ministry of Gender Equality and Family Yes No
    Comprehensive Survey of Korean Youth Ministry of Gender Equality and Family Yes No
    Multicultural Adolescents Panel Study NYPI Yes No
    Table 1. Health-related surveys of Korean youth

    Table 2. Overview of health-related surveys/databases of youth

    Table 3. Data accessibility


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