• Korean Journal of Health Education and Promotion
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• v.29 no.1
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• pp.13-25
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• 2012

Objectives: The aim of this study was to measure secular trends in health risk behaviors among middle and high school students in Korea between 2005 and 2009 by using data from the Korea Youth Risk Behavior Web-based Survey(KYRBS). Methods: The analyses were performed using data from the 2005, 2006, 2007, 2008, and 2009 KYRBS, which included a nationally representative sample of middle and high school students. A total of 34 health behavior indices were used for the assessment of secular trends in health risk behaviors. Logistic regression models were used to identify statistically significant secular trends in health risk behaviors, after adjusting for gender and grade. Linear and higher-order time variables were simultaneously entered into the statistical models. Results: There was evidence of small, but statistically significant increasing or decreasing trends in certain health risk behaviors. Secular trends in health risk behaviors varied by gender. Conclusions: This study indicates that between 2005 and 2009, changes in health risk behaviors among Korean adolescents were generally small, but represented statistically significant increases or decreases. Further research should explore why certain health risk behaviors are increasing or decreasing and what types of interventions are most effective.

• Journal of the Korean Society of School Health
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• v.29 no.2
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• pp.90-97
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• 2016

Purpose: The purpose of this study was to investigate the relationship between sleep timing and depressive mood in Korean adolescents. Methods: The study analyzed the data from the 2007~2015 Korea Youth Risk Behavior Web-based Survey. A total of 541,693 students in grades 7~12 were included in the final analysis. Multivariable logistic regression was used to examine their sleep timing and depressive mood, adjusted for sex, grade, region, socioeconomic status, academic performance, alcohol, smoking and physical activity. Sleep duration and sleep quality were also included in our model to identify whether or not the effect of sleep timing on depression is mediated by sleep duration or sleep quality. Results: The prevalence of depressive mood was 32.7% and the mean sleep timing was 12:13 AM. After adjustment for eligible covariates, the association between sleep timing and depressive mood showed a J-shaped curve. Adolescents who slept at 8 pm~10 pm were 39% more likely to be depressive (OR = 1.39, 95% CI 1.30~1.40) and at 3 am~ 4 am were 67% more likely to be depressive (OR=1.67, 95% CI 1.64~1.70) than adolescents who slept at 11 pm~12 am. These associations persisted after being adjusted for sleep duration and sleep quality. Conclusion: Sleep timing was related to depression in adolescents, independent of sleep duration and sleep quality. It appears that there is a certain sleep timing beneficial to mental health of adolescents.

• Journal of the Korean Society of School Health
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• v.33 no.2
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• pp.79-88
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• 2020

Purpose: The purpose of this study was to identify 14 years of trends in sexual intercourse and sex education experiences among Korean adolescents from 2006 to 2019, based on online data. Methods: The study was a secondary analysis using the raw data of the 2^nd (2006) through 15^th (2019) Youth Risk Behavior Web-based Survey. The data of 504,105 male adolescents and 473,053 female adolescents were used for the analysis. A complex-sample cross-analysis (Rao-Scott χ² test) was performed to identify differences in sexual intercourse, sex education experience, and contraception over time, and logistic regression was performed to identify factors affecting adolescent sexual intercourse. Results: Sexual intercourse was found to increase as the year progressed. More high school students had sexual experiences than middle school students. Students who had ever smoked or drunk were more likely to have had sexual intercourse than the ones who had not. Students living with relatives or living in boarding houses or dormitories showed a higher rate of sexual intercourse than those living with family members. Students who never received sex education also showed a high rate of sexual intercourse. Conclusion: It is significant to grasp the trends in sexual intercourse, sex education experience, and contraception among adolescents over time. Providing adolescents with healthy sex education is becoming more and more important every year and health-related education including sex education that meets the need of teenagers should be incorporated into the regular curriculum.

• The Journal of Korean Society for School & Community Health Education
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• v.15 no.2
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• pp.23-38
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• 2014

Objectives: Since juveniles' unhealthy diets, and their problematic behavior resulting from drinking cause serious harm to those who are in a period of growth, we attempted to find out the relationship between juveniles' dietary habits and their drinking alcohol. Methods: The data was collected from 74,186 people in a 2012 web-based survey of Korean juveniles' health behavior, which was jointly conducted by the Ministry of Education, Science, and Technology, the Ministry of Health and Welfare, and the Korea Centers for Disease Control. This study conducted a logistic regression analysis using SPSS 18.0. Results: Juveniles who consume fast food at least once in a day have a significantly higher chance of binge drinking (OR=3.063, 95% CI=2.332~4.023), problematic drinking(OR=6.041, 95% CI=4.947~7.379) than those who don't. It also indicates that juveniles who don't eat breakfast have a significantly higher chance of binge drinking (OR=1.358, 95% CI=1.158~1.593), problematic drinking(OR=1.762 95% CI=1.548~2006) than those who eat breakfast every day. Conclusions: Irregular breakfast or a frequent intake of fast food causes problematic drinking, and binge drinking. Therefore, when planning programs for the prevention of juvenile drinking, it seems necessary to include education of healthy dietary habits.

• Journal of the Korean Society of School Health
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• v.33 no.1
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• pp.39-47
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• 2020

Purpose: The purpose of this study was to compare unsafe sex experiences of multicultural and non-multicultural adolescents. Methods: The study analyzed the data of 3,029 respondents who responded that they had sex in the Korea Youth Risk Behavior Web-Based Survey of 2018. Weighted percentages and simple and multiple logistic regression were conducted using SAS 9.2. Results: As a result of univariate analysis, the odds ratio of unsafe sex was significantly higher in multicultural adolescents, but the difference between the two groups was not significant after controlling for the related variables. Among the covariates, the odds of unsafe sex were significantly higher in boys (AOR: 1.34; 95% CI: 1.08~1.66), those who did not live with their family (AOR: 1.68; 95% CI: 1.17~2.39), those with low academic achievement (AOR: 1.33; 95% CI: 1.02~1.73), binge drinkers (AOR: 1.61; 95% CI: 1.29~2.02), smokers (AOR: 1.37; 95% CI: 1.06~1.78), and those who did not receive sex education (AOR: 1.59; 95% CI: 1.20~2.11). Conclusion: There was no significant difference in unsafe sex experience between multicultural and non-multicultural adolescents. This study also shows the positive effect of school sex education on safe sex in teenagers. It is necessary to strengthen sex education for male students, students not living with their family, students with low academic achievement, binge drinkers, and smokers.

• The Journal of the Korea Contents Association
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• v.16 no.6
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• pp.345-353
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• 2016

This study was intended to analyze the present condition and problems of education by examining the curriculum of departments relating to IT design in community colleges in the environment of IT that more rapidly grew than any other sector due to the development of information and communication and smart device, focusing on the actual condition. And it was intended to present a scheme for the improvement of IT design curriculum in community colleges in preparation for the surveyed industry demand in IT sector. First of all, this study attempted to check how IT designers' work changed according to the change of technology in industrial scene through a survey of job in IT industry and an analysis of IT industry trends. As a result, it was shown that the work of IT designers who had carried out web design work extended to mobile design, and school education also required mobile education according to the change of the times. Here, through task analysis, it was possible to find that web design and mobile design was not fundamentally entirely different, but was within the range where it was perfectly possible to carry out mobile design work if mobile environment and condition was understood and an education was given together with the existing curriculum.

• Journal of Korean Society of Archives and Records Management
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• v.12 no.3
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• pp.177-201
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• 2012

This study investigated the status of information services in records and archives centers using the Web to survey and by interviewing archivists and professionals. Services offered are not various, but some actives services including offering records via SNS and provising exibitions using records are offered. Many of the requested records are for evidence and reference for works, and the finding aids are limited in their functions. Also, the barriers in offering services were mostly due to the fact that the duties of managing records are mostly performed by one profession, and they have not enough time to provide services with the lack of manpower. Also the arrangement and description level is not enough and the records systems have limitations including lack of search functions. For better services, improvement of the systems and the supplement of manpower is considered to be most urgent.

• Safety and Health at Work
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• v.7 no.3
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• pp.201-207
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• 2016

Background: Korean Working Conditions Surveys (KWCS), referencing European Working Conditions Surveys, have been conducted three times in order to survey working condition and develop work-related policies. However, we found three limitations for managing the collected KWCS data: (1) there was no computerized system for managing data; (2) statistical KWCS data were provided by limited one-way communication; and (3) the concept of a one-time provision of information was pursued. We suggest a web-based public service system that enables ordinary people to make greater use of the KWCS data, which can be managed constantly in the future. Methods: After considering data characteristics, we designed a database, which was able to have the result of all pairwise combinations with two extracted data to construct an analysis system. Using the data of the social network for each user, the tailored analysis system was developed. This system was developed with three methods: clustering and classification for building a social network, and an infographic method for improving readability through a friendly user interface. Results: We developed a database including one input entity consisting of the sociodemographic characteristics and one output entity consisting of working condition characteristics, such as working pattern and work satisfaction. A web-based public service system to provide tailored contents was completed. Conclusion: This study aimed to present a customized analysis system to use the KWCS data efficiently, provide a large amount of data in a form that can give users a better understanding, and lay the ground for helping researchers and policy makers understand the characteristics.

• Journal of Korean Academy of Nursing
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• v.45 no.5
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• pp.723-732
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• 2015

Purpose: The purpose of this study was to develop a system dynamics model for adolescent obesity in Korea that could be used for obesity policy analysis. Methods: On the basis of the casual loop diagram, a model was developed by converting to stock and flow diagram. The Vensim DSS 5.0 program was used in the model development. We simulated method of moments to the calibration of this model with data from The Korea Youth Risk Behavior Web-based Survey 2005 to 2013. We ran the scenario simulation. Results: This model can be used to understand the current adolescent obesity rate, predict the future obesity rate, and be utilized as a tool for controlling the risk factors. The results of the model simulation match well with the data. It was identified that a proper model, able to predict obesity probability, was established. Conclusion: These results of stock and flow diagram modeling in adolescent obesity can be helpful in development of obesity by policy planners and other stakeholders to better anticipate the multiple effects of interventions in both the short and the long term. In the future we suggest the development of an expanded model based on this adolescent obesity model.

• Journal of Preventive Medicine and Public Health
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• v.47 no.3
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• pp.158-168
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• 2014

Objectives: To identify and evaluate the trend of meal-skipping rates among Korean adolescents with their contributing causes and the influence of household income level on meal skipping. Methods: Using 2008, 2010, and 2012 data from the Korea Youth Risk Behavior Web-based Survey of 222 662 students, a cross-sectional study with subgroup analysis was performed. We calculated odds ratios for skipping each meal 5 or more times in a week by household socio-economic status using a multiple logistic regression model. The secular change in the meal-skipping rates by the students' family affluence scale was analyzed by comparing the meal-skipping students within each subgroup and odds ratios for the same event over time. Results: Through 2008 to 2012, most of the meal-skipping rates generally showed a continuous increase or were almost unchanged in both sexes, except for breakfast skipping in several subgroups. Students in low-income households not living with both parents had the highest meal-skipping rates and odds ratios for frequent meal skipping. In a time-series subgroup analysis, the overall odds ratios for the same event increased during 2008 to 2012, with a slight reduction in the gap between low and higher income levels with regard to meal skipping during 2010 to 2012. Conclusions: Household socio-economic status and several other factors had a significant influence on Korean adolescent meal-skipping rates. Although the gap in eating behavior associated with household socio-economic differences is currently decreasing, further study and appropriate interventions are needed.