Korean Journal of Community Nutrition

[English]
Health Status and Nutrient Intakes of 5th Grade Elementary Students in Seoul and Gyeonggi Province: Ok Hyun Kim, Hyun Ah Park, Young Gyu Cho, Kyoung Woo Kim, Yangim Hur, Ji Hyun Song, Jae Heon Kang; Korean J Community Nutr 2010;15(6):717-726. Published online December 31, 2010

Abstract PDF: This study was conducted to investigate health status and nutrient intakes among 5th grade elementary students at Korea Centers for Disease Control and Prevention 2010. This study was cross-sectional study on 1,384 children (687 boys, 697 girls) from nine elementary schools located in Seoul and Gyeonggi province. The average height, weight and BMI were 145 cm, 40.6 kg 19.2 kg/m2 for boys and 145.4 cm, 38.2 kg, 18.0 kg/m2 for girls. The prevalence of overweight and obesity were 11.3%, 5.2%, respectively. Serum AST, ALT, glucose, HDL-Cholesterol and RBC levels were significantly higher, while TG levels was significantly lower for boys than for girls. The average energy intake was 1772.4 kcal, which was 98.7% of Estimated Energy Requirement (EER). The boys consumed more energy intake (1800.4 kcal) than the girls (1744.7 kcal). Also, they took insufficient calcium and folate (69.1% and 83.3% of Recommended Intake (RI)) and excess sodium (297.6% of Adequate Intake (AI)) and 85.1% of the subjects had breakfast everyday. In general, the proportion of the children who consumed fruits and vegetables at least once or more a day was low. There was a higher proportion of children in boys who had ramyun and milk with sufficient physical activity than those in girls. As a result of this study, we can find risk factors on obesity and metabolic disorders, and the results can be used for an evidence of nutrition education program and the intervention program.

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[English]
Snack Consumption Behaviors and Nutrition Knowledge among Elementary School Students in Siheung-si: Eun A Cho, Soo Kyung Lee, Gyu Jin Heo; Korean J Community Nutr 2010;15(2):169-179. Published online April 30, 2010

Abstract PDF: Good snack consumption behaviors are important among elementary students because snack provides additional energy and nutrients and because good dietary behaviors should be formed during early stages of life. This study investigated, among elementary school students, 1) snack consumption behaviors, 2) snack-related nutrition knowledge level, and 3) relationships between snack behaviors and snack-related nutrition knowledge. A convenience sample (N = 372), drawn from 5th and 6th graders of an elementary schools in Siheung-si, Gyeonggi-do, completed a pre-tested questionnaire. More than 85% of the participants snacked more than once per week. Most (77%) had their snacks at home. Fruit and fruit juice were the most frequently consumed and the most liked snack items. Taste was the most important in choosing a snack item closely followed by health/nutrition. Snack-related knowledge level was relatively high and the participants obtained their nutrition knowledge through mass media (30.4%) and family/friends (29.0%). Snack-related nutrition knowledge level and snack consumption behaviors showed positive relationships in various areas such as choosing more nutritious snack items and checking nutrition labels. Although this study was limited by its cross-sectional study design, these positive relationships suggest that better nutrition knowledge could result in better behaviors. Results of this study indicated that factual nutritional knowledge has been well transmitted to students. Therefore, future nutrition education on snacking could focus more on providing problem-solving and operational knowledge.

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[English]
Effects of Nutrition Education Using Food Exchange System: Changes in Elementary Students' Nutrition Knowledge, Dietary Attitude and Nutrients Intake: Sook Bae Kim, Hee Jin Choi; Korean J Community Nutr 2008;13(6):922-933. Published online December 31, 2008

Abstract PDF: The purpose of this study was to investigate the effects of nutrition education using Food Exchange System on elementary students' nutrition knowledge, dietary attitude and nutrients intake. Nutrition education lessons (40 min /lesson, 4 times), '5 major nutrients and functions', '6 food groups and sources of 6 food groups', 'good choice of snacks and eating out' as class lesson, 'daily needed energy and food exchange units' as individual lesson, were provided to 70 elementary students (4th grade 33 students, 5th grade 37 students) in Jeonbuk Province. We assessed the changes in nutrition knowledge, dietary attitude, food habit using a questionnaire and nutrient intake using 24 hr recall method by nutrition education. In nutrition knowledge, there were significant increases in scores of 'functions of carbohydrate', 'functions of protein', 'functions of lipid', 'foods of carbohydrate', and 'foods of lipid'. In dietary attitude, there were significant increases in scores of 'taking a meal with joy', 'taking a meal at ease', 'taking a meal with sufficient protein intake' and 'taking a meal without spicy foods' by nutrition education. There were significant changes in the type of breakfast and in the frequency of snacks. After education, in type of breakfast, it showed higher number of students ate rice oriented meal than they did before education. and in frequency of snacks, it showed lower number of students ate snacks 'over 3 times' than they did before education. In Carbohydrate : Protein : Fat (CPF) ratio (%), it was significantly changed from 55.8 : 17.7 : 26.6 to 63.6 : 15.3 : 21.1. In evaluation of nutrient intake by Dietary Reference Intakes for Koreans (KDRIs), vitamin A, thiamin, niacin, vitamin B6, calcium, phosphate, iron and zinc showed positive changes in distribution of number of children by intake level. That is, there were significant improvements in intakes of vitamin A, thiamin, niacin, vitamin B6, calcium, phosphate, iron and zinc. These results showed that nutrition education using Food Exchange System for elementary students improved nutrition knowledge, dietary attitude and nutrients intake. It suggest that nutrition education using Food Exchange System may improve dietary behaviors and reduce an incidence of obesity in elementary students.

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[English]
Improvement of Dietary Attitudes of Elementary Students by Nutrition Labeling Education: Seon Mi Hyon, Jeong Weon Kim; Korean J Community Nutr 2007;12(2):168-177. Published online April 30, 2007

Abstract PDF: The purpose of this study was to improve the dietary attitudes of elementary students through nutrition labeling education. A class of fifth-grade elementary students was selected and educated for basic nutrition and reading of nutrition labeling for 8 weeks by using education materials from the KFDA. After the education, the children were subjected for the practice of reading nutrition labeling during winter vacation, and the changes in their dietary attitudes and practice were measured by using questionnaires for children and their parents along with measuring physical changes. The results were as follows: The level of nutritional knowledge was improved significantly after the education (p < 0.05). Nutrition labeling education increased the children's frequency of reading nutrition labeling from 34.2% to 57.9% while purchasing processed foods (p < 0.05), and 92.1% of the children answered that their dietary attitudes improved by nutrition labeling education. However, no improvement in physical measurements was observed after education. This result suggested that 8-week of education were not enough to show the improvement in physical measurements, and long-term and repeated education is necessary. After the education, most children answered that they recognized the benefit of reading nutrition labeling and they would read the nutrition labeling when purchasing processed foods. Parents also recognized the necessity of nutrition labeling education in school and suggested the need of nutrition labeling be easy to read. The above results suggested that nutrition labeling education is an effective way for improving dietary attitudes of children.

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[English]
Relation among Dietary Habits, Nutrient Intakes and Bone Mineral Density in Korean Normal and Obese Elementary Students: Yun Jung Bae, Eun Yeong Kim, Hye Kyung Cho, Mi Hyun Kim, Mi Kyeong Choi, Mi Kyung Sung, Chung Ja Sung; Korean J Community Nutr 2006;11(1):14-24. Published online February 28, 2006

Abstract PDF: The purpose of this study was to investigate the relation between bone mineral density and nutrient intake among normal and obese elementary students. Each subject was assigned to one of such as normal (n = 69) and obese groups (n = 94) according to their obesity indices. And they were asked for general characteristics, dietary habits and nutrient intakes using questionnaires and 24-hr recall method. They measured the sound of speed (SOS) of calcaneus using quantitative ultrasound. The averages age of the subjects were 10.6 years in normal and 10.7 years in obese group. The averages weight (p < 0.001) and obesity index (p < 0.001) of the normal group were significantly lower than those of the obese group. In dietary habits, the obese group in boys was the higher skipped breakfast than normal group (p < 0.01). The plant calcium intake of obesity in girls was lower than those of normal group (p < 0.05). The SOS in the calcaneus was 1697.6 m/s in the obese group and 1763.7 m/s in the normal group (p < 0.01). The SOS in the calcaneus was negatively correlated to weight (p < 0.01), obesity index (p < 0.001) and percent of body fat (p < 0.01). Also the SOS in the calcaneus was positively correlated plant calcium intake (p < 0.05). In conclusion, the excessive increase of weight and percent of body fat in elementary students appeared to have negative impact to bone health. And based on these results, further studies on the effects on bone mineral density of obese and nutrient intakes in needed for proper bone health.

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[English]
Satisfaction of Elementary Students Eating School Lunch; Association with Level of Involvement in School Lunch Service: Jihyun Yoon, Yun Jeong Choo, Sang Jin Chung, Si Hyun Ryu; Korean J Community Nutr 2005;10(5):668-676. Published online October 31, 2005

Abstract PDF: The purpose of this study was to determine the relationship between the students' levels of involvement in school lunch service and their satisfaction levels with the service. A survey was conducted with 5th and 6th grade elementary students eating school lunches. Out of 1,680 questionnaires distributed to the students from 14 schools, 1,254 complete questionnaires (74.6%) were analyzed. The questionnaire included two 5-point multi-item scales for measuring levels of involvement in and satisfaction with school lunch service, respectively. A factor analysis grouped 20 items measuring school lunch satisfaction into three factors: 'food satisfaction', 'nutrition & sanitation satisfaction', and 'service & environment satisfaction'. As a result of multiple regression analyses controlling the influence of such variables as students' grades, gender, school location, years and places of eating school lunches, students' levels of involvement in school lunch service was proven to be positively associated with levels of school lunch satisfaction overall, as well as satisfaction levels in regard to 'food', 'nutrition & sanitation', and 'service & environment', respectively. It was suggested that efforts such as nutrition education to increase students' levels of involvement in school lunches could be a useful strategy to improve students' satisfaction with school lunch service.

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