• 대한한방소아과학회지
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• 제29권2호
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• pp.16-25
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• 2015

Objectives The purpose of this study is to investigate the relationship between physical activity and growth indices. Methods 5963 of 12 years old adolescents were participated in the 10th Korea Youth Risk Behavior Web-Based Survey (KYRBWS-V) project in 2014. These data was analyzed to show the relationship between physical activity and height, BMI. Results According to the Physical Activity guidelines, the mean height was higher in the each male and female group with 'moderate physical activity for at least 60 min ${\geq}7$ days/week', 'vigorous physical activity ${\geq}3$ days/week', and 'muscle-strengthening activity ${\geq}3$ days/week' compare to the group who did not. The mean BMI was lower in the male group of 'sitting for watching TV or computer, etc on a weekday < 3 hr/day' compare to group who did not. Conclusions These results showed that physical activity in adolescence is correlated to growth. Therefore, this research can be one of the reference data to show the proper physical activity is important in the growth.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제31권1호
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• pp.33-40
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• 2020

Objectives: There is an increasing number of North Korean adolescents in South Korea. These adolescents need clinical attention as they experience a high risk of suicidal behavior because of the childhood adversity and acculturative challenges that they face before and after arriving in South Korea. This study assessed the risk of suicide attempts among North Korean adolescents compared to South Korean adolescents, and investigated the contributing factors for each group. Methods: We used data from the Korean Youth Risk Behavior Web-Based Survey (KYRBS) spanning 2011 to 2018, in which 404 adolescents had a father and/or mother who was a North Korean native. Data on 1,212 propensity-matched South Korean adolescents were extracted from the 2011 to 2018 KYRBS. Prevalence was calculated and compared by group. Separate odds ratios were calculated by group. Results: The North Korean group had a significantly higher suicide attempt rate [unadjusted odds ratio (OR)=8.27; adjusted OR=8.45]. Multivariate analysis indicated that having a low or high socioeconomic status and depressive symptoms were significantly associated with suicide attempts in North Korean adolescents, while being female, having a high socioeconomic status, alcohol use, and depressive symptoms were significantly related to suicide attempts in South Korean adolescents. Conclusion: The results found similarities and differences in the factors associated with the likelihood of suicide attempts in the two groups. From these results, different approaches are needed when planning interventions for each group.

• 대한간호학회지
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• 제46권4호
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• pp.552-561
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• 2016

Purpose: The purpose of this study was to investigate factors influencing lifetime smoking and current smoking among adolescents in South Korea. Methods: Hierarchical logistic regression was conducted based on complex sample analysis using statistics from the 10th (2014) Korea Youth Risk Behavior Web-Based Survey. The study sample comprised 72,060 adolescents aged 12 to 18. Results: The significant factors influencing adolescent lifetime smoking were female gender, older age, higher stress, higher weekly allowance, lower economic status, living apart from parents, parental smoking, sibling smoking, peer smoking, observation of school personnel smoking, and coed school compared to boys' school. The significant factors influencing adolescent current smoking were female gender, older age, higher stress, higher weekly allowance, both higher and lower economic status compared to middle economic status, living apart from parents, parental smoking, sibling smoking, peer smoking, observation of school personnel smoking, and coed school compared to boys' school. Conclusion: Factors identified in this study need to be considered in programs directed at prevention of adolescent smoking and smoking cessation programs, as well as policies.

• 한국산학기술학회논문지
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• 제19권2호
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• pp.155-163
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• 2018

본 연구의 목적은 '제11차(2015년) 청소년건강행태온라인조사'를 이용하여 흡연을 경험한 청소년의 흡연특성과 흡연유형에 따른 특성을 파악하여 복합흡연에 관련된 요인을 알아보고자 하였다. '제11차(2015년) 청소년건강행태온라인조사'에 응답한 68,043명 중 일반담배 및 전자담배 흡연 경험이 있는 중 고등학생 5,347명을 대상으로 분석하였다. 사용된 데이터는 가중치가 적용된 복합표본분석을 이용하여 빈도분석, 카이제곱 검정, 로지스틱 회귀분석으로 분석하였다. 전체 흡연 청소년의 20%가 복합흡연자였으며 전자담배 이용자 85.6%가 니코틴을 사용하였다. 다중 로지스틱 회귀분석 결과 남학생인 경우(OR 1.63; 95% CI 1.15-2.31), 대도시에 거주하는 경우(OR 1.76; 95% CI 1.32-2.33), 하루에 패스트푸드를 1-2회 먹는 경우(OR 2.48; 95% CI 1.33-4.64), 최초흡연 경험 시기가 고등학교인 경우(OR 0.76; 95% CI 0.58-0.98), 간접흡연 경험이 있는 경우(OR 1.24; 95% CI 1.07-1.44), 음주경험이 있는 경우(OR 2.03; 95% CI 1.65-2.48), 일주일간 용돈수준이 높을수록 복합흡연의 위험이 높았다. 본 연구는 청소년의 전자담배와 복합흡연에 대한 기초자료를 제공하고 금연 프로그램 및 정책 개발에 도움이 되리라 판단된다.

• Journal of Preventive Medicine and Public Health
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• 제43권5호
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• pp.396-402
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• 2010

Objectives: Self-reported anthropometric values, such as height and weight, are used to calculate body mass index (BMI) and assess the prevalence of obesity among adolescents. The aim of this study was to evaluate the validity of selfreported height, weight, and BMI of the Korea Youth Risk Behavior Web-based Survey questionnaire. Methods: A convenience sample of 137 middle school students and 242 high school students completed a selfadministered questionnaire in 2008. Body height and weight were directly measured after self-reported values were obtained from the questionnaire survey. Sensitivity, specificity, and kappa statistics were computed in order to evaluate the validity of the prevalence of obesity (BMI $\geq$ 95th percentile or $\geq$ $25;kg/$m^2$) based on self-reported data. Results: Self-reported weight and BMI tended to be underestimated. Self-reported height tended to be overestimated among middle school females and high school males. Obese adolescents tended to underestimate their weight and BMI and overestimate their height more than non-obese adolescents. The prevalence estimate of obesity based on selfreported data (10.6%) was lower than that based on directly measured data (15.3%). The estimated sensitivity of obesity based on self-reported data was 69.0% and the specificity was 100.0%. The value of kappa was 0.79 (95% confidence interval, 0.70 - 0.88). Conclusions: This study demonstrated that self-reported height and weight may lead to the underestimation of BMI and consequently the prevalence of obesity. These biases should be taken into account when self-reported data are used for monitoring the prevalence and trends of obesity among adolescents nationwide.

• 지역사회간호학회지
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• 제28권2호
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• pp.173-181
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• 2017

Purpose: Early sexual intercourse is associated with poor health outcomes in adolescents. It is known that sexual intercourse coincides with other health risk behaviors such as smoking, drinking, and using drugs. The purpose of this study is to identify the relationships between sexual intercourse and health risk behaviors among Korean and US adolescents using nationally representative data. Methods: Data were collected from the 2011 Korea Youth Risk Behavior Web-based Survey (29,676 students) and 2011 Youth Risk Behavior Surveillance System (10,135 high school students). Logistic regression analysis was performed. Results: In Korea, students who had sexual intercourse accounted for 7.0% in total. Among these, 9.7% were male and 4.2% were female students. In the US, a total of 51.3% students had sexual intercourse, and the proportion of the US male (49.3%) and female (53.4%) students who had sexual intercourse was similar. Korean and US students who experienced sexual intercourse were more likely to smoke, drink alcohol, and use drugs. Conclusion: Since the results of this study show the relationships between sexual intercourse and health risk behaviors, it is necessary to develop comprehensive sex education programs with effective strategies to reduce health risk behaviors in adolescents.

• Journal of Preventive Medicine and Public Health
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• 제55권2호
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• pp.173-181
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• 2022

Objectives: Anxiety disorder is among the most prevalent mental illnesses among adolescents. Early detection and proper treatment are important for preventing sequelae such as suicide and substance use disorder. Studies have suggested that sleep duration is associated with anxiety disorder in adolescents. In the present study, we investigated the association between sleep quality and anxiety in a nationally representative sample of Korean adolescents. Methods: This cross-sectional study was conducted using data from the 2020 Korea Youth Risk Behavior Web-based Survey. The Generalized Anxiety Disorder-7 questionnaire was used to evaluate anxiety. The chi-square test was used to investigate and compare the general characteristics of the study population, and multiple logistic regression analysis was used to analyze the relationship between sleep quality and anxiety. Results: In both sexes, anxiety was highly prevalent in participants with poor sleep quality (adjusted odds ratio [aOR], 1.56; 95% confidence interval [CI], 1.43 to 1.71 in boys; aOR, 1.30; 95% CI, 1.19 to 1.42 in girls). Regardless of sleep duration, participants with poor sleep quality showed a high aOR for anxiety. Conclusions: This study identified a consistent relationship between sleep quality and anxiety in Korean adolescents regardless of sleep duration.

• Journal of the Korean Data and Information Science Society
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• 제28권1호
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• pp.21-28
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• 2017

본 연구는 우리나라 청소년의 성경험에 영향을 주는 개인 및 가족요인을 파악하고자 우리나라 청소년들에 대한 국가 통계량 생산을 위해 복합표본설계 기반으로 조사되고 있는 제11차 (2015년) 청소년건강행태온라인조사 자료를 활용하였다. 연구 대상자는 2015년 국내 중 고등학교에 재학 중인 68,043명이며, 층화 및 집락, 가중치의 복합표본설계를 고려하여 기본 빈도분석과 성경험 유무에 대한 로지스틱회귀분석을 수행하였다. 본 연구결과에 따르면 개인 (나이, 학교유형, 스트레스 정도, 흡연, 음주) 및 가족 (경제상황, 부모동거) 요인이 청소년들의 성경험에 유의한 관련성을 가지고 있었다. 특히 음주경험과 흡연경험이 있는 대상이 그렇지 않은 대상에 비해 각각 2.03배와 4.01배 높은 성경험 가능성을 나타내고 있으며, 양부모와 동거하지 않는 대상이 양부모와 동거하는 대상에 비해 3.47배 높은 성경험 가능성을 나타내고 있다. 따라서 청소년들의 올바른 성문화를 위해 위험요인들을 고려한 전문적인 교육을 강화할 필요가 있으며, 특히 개인요인 중 큰 위험요인으로 나타난 음주와 흡연에 노출된 청소년들을 보호하기 위해 국가의 더욱 적극적인 규제가 필요할 것이다. 그뿐만 아니라 경제상태가 좋지 않거나 부모들과 함께 거주하지 않는 자녀에 대해서도 부모들의 더 큰 관심이 필요할 것이다.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제29권1호
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• pp.26-30
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• 2018

Objectives: To investigate the association of problematic Internet use with oral health behaviors and oral health status in a nationally representative sample of Korean adolescents. Methods: Data from the 2010 Korea Youth Risk Behavior Web-based Survey (73238 Korean adolescents; mean age $15.06{\pm}1.75years$; age range, 12-18 years) were used. Problematic Internet use was measured using the Korean Internet Addiction Proneness Scale for Youth-Short Form. Self-report questionnaires were used to assess oral health behaviors and oral health status of adolescents. Results: Problematic Internet users were less likely to brush their teeth frequently [adjusted odds ratio (AOR)=0.59; 95% confidence interval (CI)=0.56-0.63] and at school after lunch (AOR=0.89; 95% CI=0.83-0.94) as well as more likely to perceive their oral health to be poorer (AOR=1.63, 95% CI=1.54-1.72) and experience oral symptoms (AOR=1.75, 95% CI=1.65-1.86) compared to usual Internet users. Conclusion: The study results indicate that problematic Internet use may adversely affect the oral health of Korean adolescents. Thus, oral health screening and Internet-based education are needed for adolescents experiencing problematic Internet use.

• 치위생과학회지
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• 제22권3호
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• pp.171-179
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• 2022

Background: In this study, we investigated the changes and factors that affect daily health behaviors due to COVID-19 among adolescents. We intend to provide basic data so that a systematic and comprehensive health education program that includes physical and oral health can be made. Methods: This study was a secondary data analysis of the from the 2019 and 2020 Korea Youth Risk Behavior Web-based Survey. A final sample of 112,251 participants was anlayzed using chi-square test, and ordinal logistic regression. Results: In the case of tooth brushing, the frequency of 'never' increased in most general characteristics compared to before COVID-19. In the case of handwashing, it was found that handwashing behavior increased (increased) after COVID-19 compared to before COVID-19. As a result of confirming the factors affecting tooth brushing behavior before and after COVID-19, it was found that girls brushed teeth 2.2 times more regularly after lunch than boys. As a result of adjusting all other factors, regular tooth brushing behavior after COVID-19 was reduced by 0.79 times compared to before COVID-19. Conclusion: It is judged that it is necessary to operate a comprehensive health management program in the school so that the most basic tooth brushing for oral health and handwashing for health can become a habit. In addition, by confirming the impact of the COVID-19 pandemic on handwashing and tooth brushing behavior through this study, it is expected to be used in the development of policy data such as raising awareness of brushing and improving behaviors applicable in the current and upcoming new pandemic situations.