• The Korean Journal of Community Living Science
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• v.13 no.3
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• pp.69-80
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• 2002

This study was conducted to investigate the relationship among body image Perception, eating behavior and health status in young females. The survey was carried out by self-questionnaires for 293 female high school students(HS) and 164 female college students(CS) living in Daegu and suburbs of Daegu. For the perception of body image, 9-grade body figure drawings were used based on average Korean body size. EAT-26 and Rosenberg Self-Esteem Scale were used to measure the tendency of eating disorder and self-esteem. It appeared that 40.5% of the subjects were off the normal range of body weight; especially 34.2% of the subject were underweight. The subjects' perception about current body image was within normal range. Almost of all the subjects believed that the ideal body image was thinner than their own current body image, and they wanted to be thinner than their current body image. The change of eating behaviors related to weight control of CS was significantly higher than that of HS students. EAT-26 score, self-esteem score, and subjective health status score were no difference between groups. The cut-off point of the eating disorder in this study was equal to or greater than 20 in EAT-26 score. The rates of the eating disorder were very high as 9.6% of HS and 8.5% of CS. Eating disorder was positively correlated with BMI, current body image, dissatisfaction of body image and the change score of eating behavior. But eating disorder was negatively correlated with health status. From the results of this study, we suggested that one of causes related to the eating disorder behaviors in adolescent females was resulted from misperception about ideal body image. There is a great need to provide nutrition educations concerning appropriate perception of body image and weight control among adolescent females.

• Nutrition Research and Practice
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• v.9 no.5
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• pp.547-553
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• 2015

BACKGROUNDS/OBJECTIVES: The effects of malnutrition on growth of toddlers and preschoolers by socioeconomic status are not well known. This study aimed to examine the effects of dietary intake on growth outcomes in toddlers and preschoolers by household income level. SUBJECTS/METHODS: The study population was a total of 1,687 children aged 1 to 5 years that participated in the KNHANES from 2009 to 2011. Growth of children was assessed by height for age (HFA) and weight for height (WFH). Children were classified into three groups according to children's HFA and WFH compared to the $10^{th}$ and $90^{th}$ percentiles of the 2007 Korean Children and Adolescent Growth Standard. Average monthly household income was divided into quartile groups. Dietary intake data were obtained by using the one day 24-hr recall method. Risks of inadequate intake of nutrients and unfavorable growth were estimated by using a multiple logistic regression model adjusted for sex, age, region, and energy intake. RESULTS: The low HFA group (<$10^{th}$ percentile) had significantly lower intakes of energy, carbohydrate, and thiamin as compared with the high group (${\geq}90^{th}$ percentile). For WFH status, vitamin C intake was lower in the low group than in the high group. Household income level was related to WFH status but not HFA. Children from lower income households were more likely to have high WFH than those from higher income households (P for trend = 0.038). Household income status was also significantly related with risk of inadequate intake of micronutrients such as thiamin (P for trend = 0.032) and vitamin C (P for trend = 0.002), showing higher odds of inadequate intakes in children from lower income households. CONCLUSIONS: Children from lower income households were prone to be overweight and to have inadequate intakes of micronutrients such as thiamin and vitamin C. To reduce nutritional and health disparities, collective action in the public sector is required from early life.

• Journal of Korean Home Economics Education Association
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• v.27 no.1
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• pp.31-50
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• 2015

The purpose of this study was to analyze duplicated contents of 'Food and Nutrition unit' of Home Economics and other subject textbooks for the middle school students. In order to achieve the purpose, the textbooks of "Home Economics I II", "Science I II III", "Ethics I II", "Physical education", and "Health education" were analyzed. The results of the analyses were as follows. According to the analyses of the common contents with other subjects related to the 'Food and Nutrition unit' in the "Home Economics I II" textbooks for the middle school students under the 2009 revised curriculum, the high percentages of the common contents were found in "Science" curriculum and "Health education" curriculum, followed by "Physical education" and "Ethics". It was observed that the Home Economics curriculum provided not only the theoretical basis about the dietary issues that the youth faces but also a plan to address those issues, as "Home Economics" textbooks were focused on 'dietary problems of the youth', 'balanced diet', 'green diet', and 'Korean-style diet'. The "Science" curriculum focused on scientific theories and principles, as the "Physical Education"and the "Health education" focused on health. In contrast, it was revealed that the "Ethics" curriculum considered 'Koreans' identity' and 'environment'. Overall as for the strength of 'Food and Nutrition unit' of "Home Economics"compared to those of other subjects, comprehensive contents for dietary life had been dealt with according to the development of the adolescent in "Home Economics", while other subjects focused on specific contents or examples concerned with 'Food and Nutrition unit'. In this regard, the dietary education for the middle school students will be more effectively conducted by "Home Economics", as compared with other subjects.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.3
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• pp.309-316
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• 2018

Purpose: This study was conducted to identify the prevalence and related factors of metabolic syndrome in Korean adolescents. Method: Based on data from the Korea National Health and Nutrition Examination Survey of 2015, 404 adolescents aged 12-18 years were enrolled. We used the adolescent Ford method as the diagnostic criteria for adolescent metabolic syndrome. The data were analyzed using descriptive statistics, t-test, $x^2$-test, and logistic regression with SPSS WINDOW 23.0 program. Results: The prevalence of metabolic syndrome in Korean adolescents was 6.5% (6.5% for boys and 6.4% for girls). Among metabolic syndrome components, the prevalence of elevated blood pressure (28.8%) was the highest, followed by elevated triglycerides (21.3%), increased waist circumference (14.1%), decreased high density lipoprotein-cholesterol (11.5%), and elevated fasting blood sugar (7.8%). The only factor associated with metabolic syndrome in both boys and girls was the Body Mass Index (BMI), and the likelihood of a metabolic syndrome increased by 1.6 to 2.3 times (Adjusted OR=1.552 to 2.313, p=0.001) as the BMI increased. Conclusion: Based on the results of this study, an intervention program should be developed and provided to maintain the BMI in the normal range for the prevention and management of metabolic syndrome in Korean adolescents.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.27 no.5
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• pp.274-285
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• 2024

Purpose: To evaluate prolonged esomeprazole use in Japanese pediatric patients for reflux esophagitis (RE) maintenance therapy and prevention of gastric (GU) and/or duodenal ulcers (DU) while using non-steroidal anti-inflammatory drugs (NSAIDs) or low-dose aspirin (LDA). Methods: This multicenter, open-label, parallel-group, phase III study (NCT03553563) included patients who were administered esomeprazole according to body weight (10 mg/day [Groups 1 and 3] and up to 20 mg/day [Groups 2 and 4] for patients weighing 10-20 kg and ≥20 kg, respectively). Efficacy outcomes for Groups 1 and 2 (maintenance therapy for healed RE) and Groups 3 and 4 (prevention of long-term NSAID/LDA use-associated GU/DU) were the presence/absence of RE relapse and GU/DU recurrence, respectively. Results: Esomeprazole as maintenance therapy was associated with a low RE recurrence rate, independent of body weight or dosage. Recurrence rates of RE were 0.0% and 5.3% for Groups 1 and 2, respectively. In patients previously diagnosed with GU and/or DU due to long-term NSAID/LDA use, the recurrence rates of GU/DU during weeks 0-32 were 11.1% and 0.0% in Groups 3 and 4, respectively. Conclusion: Long-term use of 10- or 20-mg, once-daily esomeprazole demonstrated a favorable benefit-risk balance in preventing RE and suppressing recurrence of GU and/or DU secondary to NSAID or LDA therapy in Japanese pediatric patients. No new safety concerns were identified. Esomeprazole may be a viable option for managing RE and preventing GU and DU in Japanese pediatric patients.

• Korean Journal of Clinical Laboratory Science
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• v.46 no.3
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• pp.79-84
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• 2014

Children and adolescents normally have higher Alkaline phosphatase levels than adults. This study was conducted to provide basic data about pediatric reference intervals for ALP. The data from the 2011 Korean National Health and Nutrition Examination Survey was used. Analysis was done for 847 Children and Adolescents (443 boys and 404 girls) aged 10 to 19. The method of p-NPP & EAE buffer was used to get the data. The highest ALP levels were found in boys aged 12 to 13, the reference interval being 653~1,518 IU/L; the levels decreased for those over 13 years old. In the case of girls, the highest ALP levels were found with those aged between 11 and 12, the reference interval being 463~1,598 IU/L; the levels decreased after 12 years of age. The mean difference in all age groups was statistically significant, except for those aged 10 to 11 and 11 to 12. Therefore, it is suggested that pediatric reference intervals should be divided into three groups according to gender. Complementing data about children and adolescents below 10 years old were not included in this study and will be much needed in the next trial.

• Journal of Nutrition and Health
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• v.56 no.1
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• pp.54-69
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• 2023

Purpose: Proteins are major components of the body and essential nutrients for proper growth and development. However, studies on protein intake in children and adolescents are insufficient. A few previous studies have reported the relationship with growth indicators, but results vary depending on the source of protein. Therefore, the current study investigates the relationship between protein intake and overweight and obesity among children and adolescents in Korea. Methods: Based on the 2014-2019 Korea National Health and Nutrition Examination Survey, 5,567 children and adolescents aged 6-18 years, who participated in a 24-hour dietary recall with information on height and weight, were included in this study. Protein intake was estimated as percentage of total energy (% of energy) and was classified into animal and plant protein according to the food source. Overweight and obesity were defined using the 2017 pediatric and adolescent growth chart. Results: Total protein intake of the subjects was estimated as 14.5% of total energy (animal protein 8.3% and plant protein 6.3%). The group with the highest total protein intake had a higher odds ratio (OR) of overweight/obesity than those with the least protein intake (OR, 1.36, 95% confidence interval (CI), 1.10-1.67, p for trend = 0.003). When classified by food source, the group with the highest animal protein intake had a significantly higher OR of overweight/obesity than subjects with the lowest intake (OR, 1.30, 95% CI, 1.05-1.61, p for trend = 0.016). However, plant protein was not significantly associated with overweight/obesity. Conclusions: These findings suggest that a high intake of animal protein in children and adolescents increases the risk of being overweight and obese. In order to develop normal growth and prevent obesity in the future, it is necessary to determine an appropriate protein intake level through nutrition education programs and prospective studies on balanced protein intake.

• Journal of the Korean Society of Food Science and Nutrition
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• v.37 no.12
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• pp.1576-1582
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• 2008

This study was conducted to investigate the effect of administration of calcium supplementary food containing fermented product of Bacillus subtilis SE4 highly producing poly-$\gamma$-glutamic acid on the growthparameters of adolescent male rats. Four-week old male Sprague-Dawley (SD) rats were fed for 4 weeks and assigned to the following 4 groups: two groups administered orally with new calcium supplementary food (such as 150 mg/kg and 300 mg/kg) containing fermented product of B. subtilis SE4, one group administered with conventional calcium supplementary food product (150 mg/kg) and one saline group as control. Daily weight gain and daily food intake in the two new food product groups were higher than those of conventional food product group and control group. Especially, the content of serum IGF-I in the two new food product groups were significantly higher than those in conventional food product group and in control group (p<0.05). In addition, length and weight of longitudinal bone in the two new food product groups were longer and heavier than those of conventional food product group and control group. Therefore, the addition of fermented food product of B. subtilis SE4 into the conventional calcium supplementary food increased all the parameters examined for the growth of the adolescent male rats.

• Journal of the Korean Dietetic Association
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• v.22 no.4
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• pp.241-250
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• 2016

This study was conducted in order to compare weight control behaviors, eating disorder risk, and depression in female adolescents according to dieting experience during the last year. The subjects were 707 students attending a girls' high school in Seoul, and all the information was collected by self-administered questionnaire. Eating disorder risk and depression were determined by using EAT-26 (Eating Attitude Test-26) and PHQ-9 (Patient Health Questionnaire-9), respectively. Data were compared between subjects with experience of dieting (320) and those without (387). More of the subjects with dieting experience were unsatisfied with their own body weights (76.9% vs. 44.2%, P<0.01) and weighed themselves frequently (P<0.01) compared to those without diet experience. EAT-26 ($11.63{\pm}8.3$ vs. $5.99{\pm}4.7$, P<0.01) and PHQ-9 scores ($7.05{\pm}4.6$ vs. $6.00{\pm}4.4$, P<0.01) were higher in subjects with dieting experience compared to their counterparts. Therefore, we concluded that dieting is associated with several undesirable psychological aspects such as eating disorder risk and depression in adolescent girls, and thus providing proper education is urgently needed to emphasizing importance of healthy weight and the danger of unnecessary dieting.

• The Korean Journal of Food And Nutrition
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• v.35 no.3
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• pp.167-177
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• 2022

The purpose of study was to examine the factors influencing fast food consumption in Korean adolescents. The analysis was conducted using cross sectional study data from the 16^th Korea Youth Risk Behavior Web-based Survey in 2020. A total 54,948 middle and high school students participated in this study. The subjects in the analysis were 28,353 males and 26,595 females, 28,961 middle school and 25,987 high school students. In total, 56.6% Korean adolescents consumed fast food once or twice weekly and 25.4% consumed fast food more than three times weekly. Logistic regression analysis revealed that fast food consumption was significantly associated with dietary behavior such as lower breakfast intake (OR: 0.930, 95%CI: 0.891~0.970, p<0.001), higher soda drinks consumption (OR: 2.563, 95%CI: 2.452~2.678, p<0.001), and higher sweet drinks consumption (OR: 1.898, 95%CI: 1.818~1.982, p<0.001). For psychological and health behavior factors, fast food consumption was also significantly associated with higher perceived stress (OR: 1.239, 95%CI: 1.163-1.321, p<0.001), higher smoking (OR: 1.300, 95%CI: 1.164~1.453, p<0.001), higher drinking (OR: 1.193, 95%CI: 1.112~1.280, p<0.001), higher depression experience, higher loneliness experience, and lower subjective health, In conclusion, fast food consumption in Korean adolescents was associated with undesirable dietary habits and psychological and health behavior, suggesting that appropriate education programs are necessary to reduce such behavior.