• Child Health Nursing Research
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• v.20 no.3
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• pp.159-167
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• 2014

Purpose: The purpose of this study was to investigate factors associated with sexual debut among Korean middle school students. Methods: From the database of the Eighth Korea Youth Risk Behavior Web-based Survey (KYRBS), the researchers selected 37,297 middle school students aged 12-15 years. Data were analyzed using $x^2$ test and multiple logistic regression with the SPSS WIN 18.0 program. Results: The proportion of middle school students who had a sexual debut was 2.1% of boys and 1.5% of girls. In multiple regression analysis, economic status, experience of part time work, smoking, drug use and depression were associated with an increased proportion of sexual intercourse for both boys and girls. Living with parents, drinking alcohol and suicidal ideation were associated with sexual debut for boys only. By contrast, formal sexual education was associated with a reduced risk of sexual debut. Conclusion: The results of this study show the factors associated with sexual debut among Korean middle school students. Gender-related interventions should be taken into consideration in school sexual education programmes, because of differences in related factors according to gender.

• Korean Journal of Community Nutrition
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• v.23 no.5
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• pp.397-410
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• 2018

Objectives: An association between dietary patterns and mental health in children has been suggested in a series of studies, yet detailed analyses of dietary patterns and their effects on ADHD (attention deficit hyperactivity disorder) are limited. Methods: We included 4569 children who had dietary intake data as part of the CHEER (Children's Health and Environmental Research) study conducted nationwide from 2005 to 2010. We assessed ADHD (Attention Deficit Hyperactivity Disorder) by the DuPaul's ADHD Rating Scales and dietary intake by a semi-quantitative food frequency questionnaire. Using intake data, we constructed five dietary patterns: "Plant foods & fish," "Sweets," "Meat & fish," "Fruits & dairy products," and "Wheat based." Results: The overall proportion of ADHD was 12.3%. Boys (17.8%) showed a higher rate of ADHD than girls (6.5%). The total intake of calories (85 kcal) and plant fat (2g) in the ADHD group was significantly higher than that of the normal group. ADHD was significantly negatively associated with dietary habits such as having breakfast and meal frequency, and positively associated with eating speed, unbalanced diet, overeating, and rice consumption. Regarding dietary patterns, the "Sweets" category was relevant to high ADHD risk (OR 1.59, 95% CI: 1.18, 2.15 for Q5 vs. Q1) in a linear relationship. An inverse, non-linear association was found between "Fruits & dairy products" and ADHD (OR 0.55, 95% CI: 0.39, 0.76 for Q4 vs. Q1). Conclusions: Our study confirms both positive and negative associations between diet and ADHD in elementary school age children. Moreover, linear or nonlinear associations between diet and ADHD draw attention to the possible threshold role of nutrients. Further studies may consider characteristics of diet in more detail to develop better intervention or management in terms of diet and health.

• Journal of Nutrition and Health
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• v.34 no.6
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• pp.664-670
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• 2001

This study was carried out to investigate the obesity prevalence and relationship between the degree of obesity and risk for coronary heart disease in elementary school children in Kyungbuk area from 1996 to 1998. One hundred eighty obese children aged 8 yrs through 11 yrs(112 boys : 68 girls) were chosen depending on the criteria of obesity degree, and then the subjects were classified into one of three groups according to the degree of obesity; mild(20-29%), moderate(30-49%), and severe( $\geq$ 50%) obesity, fasting blood was collected in the morning, and body fat, plasma total cholesterol, HDL-cholesterol, and triglyceride were measured. LDL-cholesterol and atherogenic index were also calculated. The obesity prevalence increased from 7.1% in 1996 to 9.5% in 1998. As body fat level increased, blood triglyceride level increased(p < 0.001). As the degree of obesity increased, the level of blood triglyceride(p < 0.001) and systolic blood pressure(p < 0.05) also increased. The risk fur coronary heart disease based on criteria of the level of total-cholesterol, LDL-cholesterol and atherogenic index increased from 6.9%,1.4% and 13.9% in 1996 to 28.3%, 18.7% and 17.0% in 1998, respectively. The number of risk factors relating to coronary hero disease increased, as the degree of obesity increased, especially in girls. The results suggest that there is some potential relationship between children obesity and the incidence of coronary hero disease. Thus, this study implicates that desirable nutrition education may be needed for obese children.