Korean Journal of Community Nutrition

Research Articles

[Korean]
Effects of watching Mukbang and Cookbang videos on adolescents’ dietary habits and mental health: cross-sectional study using the 18th Korea Youth Risk Behavior Survey: Seung-Hee Hong; Korean J Community Nutr 2024;29(2):156-170. Published online April 30, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.2.156

Objectives
This study aimed to investigate the association between how often Korean adolescents watch Mukbang and Cookbang videos and their dietary habits.
Methods
Data from the 18th Korea Youth Risk Behavior Survey conducted in 2022 was analyzed for this study. The study included 51,850 middle and high school students and assessed various aspects, including demographics, frequency of watching Mukbang and Cookbang videos per week, dietary habits, health behaviors, and mental health factors.
Results
Nearly a third (29.3%) of Korean adolescents watched Mukbang and Cookbang videos one to four times a week, while 13.5% watched them more than five times weekly. Females, those with lower academic achievement, and those from lower socioeconomic backgrounds were significantly more likely to be frequent viewers (P < 0.001). Increased viewing frequency was associated with poorer dietary habits. Adolescents who watched more frequently were less likely to eat breakfast and consume fruits and milk, while their consumption of fast food, high-caffeine drinks, sugary drinks, and late-night snacks increased (P < 0.001). Higher viewing frequency correlated with increased feelings of stress, depression, and loneliness (P < 0.001). Logistic regression analysis confirmed these associations. More frequent viewers were significantly less likely to eat breakfast (odds ratio (OR), 0.63; 95% confidence interval (CI), 0.58–0.68), and more likely to consume fast food (OR, 1.85; 95% CI, 1.69–2.02), high-caffeine drinks (OR, 1.43; 95% CI, 1.30–1.56), sugary drinks (OR, 1.54; 95% CI, 1.41–1.67), and late-night snacks (OR, 1.37; 95% CI, 1.25–1.51).
Conclusions
Our findings suggest that frequent exposure to Mukbang and Cookbang content is linked to unhealthy dietary habits in adolescents. Educational programs may be necessary to mitigate the potential for these videos to negatively influence dietary choices.

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성인 남녀의 먹방 시청시간에 따른 식행동에 대한 연구
하얀 남, 복미 정, 은례 전
Korean Journal of Food and Cookery Science.2024; 40(4): 275. CrossRef

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[English]
Dietary intake and food sources of essential fatty acids among Korean adolescents: a cross-sectional study based on the 2016–2021 KNHANES data: Enkhgerel Erdenetsetseg, Hye Ran Shin, SuJin Song; Korean J Community Nutr 2024;29(2):144-155. Published online April 30, 2024; DOI: https://doi.org/10.5720/kjcn.2024.29.2.144

Abstract PDF: Objectives
This study evaluated dietary intake and food sources of essential fatty acids in Korean adolescents.
Methods
This study was comprised of 3,932 adolescents (9–18 years) who participated in the 2016–2021 Korea National Health and Nutrition Examination Surveys. Dietary intake and food sources of essential fatty acids, including alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and linoleic acid (LA) were evaluated using data obtained from one-day 24-hour dietary recall. The proportions of adolescents consuming ALA, EPA + DHA, and LA above or below the adequate intake (AI) of the 2020 Dietary Reference Intakes for Koreans were calculated. All statistical analyses accounted for the complex sampling design effect and appropriate sample weights.
Results
The mean intakes of ALA, EPA, DHA, and LA among Korean adolescents were 1.29 g/day, 69.6 mg/day, 166.0 mg/day, and 11.1 g/day, respectively. Boys had higher intakes of all essential fatty acids compared to girls. By age group, adolescents aged 15–18 years showed lower intakes of EPA and DHA compared to adolescents in younger age groups. The 9–11-yearold adolescents had lower intakes of ALA and LA than older adolescents. The proportions of adolescents who consumed more than AI were 35.7% for ALA, 30.4% for EPA + DHA, and 41.5% for LA. Adherence to the AI for ALA did not differ by sex or age group, although boys showed a lower adherence to the AI for EPA + DHA than girls. Major food sources for ALA and LA were plant-based oils, mayonnaise, pork, and eggs. Mackerel was the most significant contributor to EPA and DHA intake (EPA, 22.6%; DHA, 22.2%), followed by laver, squid, and anchovy.
Conclusions
The proportion of Korean adolescents who consumed EPA + DHA more than AI was low. Our findings highlight that nutrition education emphasizing an intake of essential fatty acids from healthy food sources is needed among Korean adolescents.

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[Korean]
Factors related to adolescent obesity and changes: a cross-sectional study based on the Korea Youth Risk Behavior Survey: Bora Lee, Ho Kyung Ryu; Korean J Community Nutr 2023;28(5):363-375. Published online October 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.5.363

Abstract PDF

Objectives
The objective of this study was to identify factors associated with adolescent obesity, as well as any new factors that correlated with a change in the rate of obesity over time.
Methods
The study used 5-yearly data collected by the Korea Youth Risk Behavior Survey starting from the year 2006 up until 2021 (data from 2nd, 7th, 11th, and 17th surveys were analyzed). Factors such as demographics, dietary factors, health behavioral factors, and mental health factors were studied. All data were analyzed using IBM SPSS 27.0, employing chi-square tests and multiple logistic regression analysis.
Results
This study included data from a total of 255,200 participants. Factors contributing to obesity varied with time. Over the survey duration of 15 years, low academic achievement, parents with low levels of education, low frequency of fruit consumption, low frequency of fast food intake, long periods of being seated, and high levels of stress were significantly associated with a high rate of obesity. Factors that showed a new correlation with an increase in obesity rates included living with single parents, low frequency of muscle strengthening exercises, and experiencing intense sadness and despair in the past year. Factors that were correlated with a change in obesity rates over time included household economic status, frequency of carbonated beverage consumption, frequency of intense physical activity, and frequency of alcohol consumption. Breakfast intake and smoking were not significantly associated with obesity rates in the 15-year period.
Conclusions
While several factors associated with obesity remained consistent over time, several new factors have emerged in response to social, economic, and environmental changes contributed to a change in obesity rate over time. Therefore, to prevent and manage adolescent obesity, continuous research into the new emergent factors contributing to obesity is needed.

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Effects of watching Mukbang and Cookbang videos on adolescents’ dietary habits and mental health: cross-sectional study using the 18th Korea Youth Risk Behavior Survey
Seung-Hee Hong
Korean Journal of Community Nutrition.2024; 29(2): 156. CrossRef

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[Korean]
Correlation between adolescents’ dietary safety management competency and value recognition, efficacy, and competency of convergence using dietary area: a descriptive study: Yunhwa Kim, Yeon-Kyung Lee; Korean J Community Nutr 2023;28(4):317-328. Published online August 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.4.317

Abstract PDF: Objectives
This study aimed to investigate the correlation between adolescents’ dietary safety management competency, value recognition, efficacy, and competency of convergence using the dietary area (CUDA).
Methods
Data were collected from 480 middle and high school students in Daegu, Gyeongbuk and Seoul, Gyeonggi using a self-administered five-point Likert scale questionnaire from May to July 2021. A questionnaire was used to investigate dietary safety management competency, awareness of convergence, recognition of the benefits, efficacy, and competency of CUDA.
Results
We conducted factor, reliability, correlation, and regression analyses using SPSS 25. The average scores for each factor were: dietary significance (3.68); dietary safety management knowledge (3.34); food selection and cooking (3.72); nutrition management (3.38); weight management (3.28); risk dietary management (3.13); CUDA interest (2.98); convergence necessity (3.50); benefits in specialized areas (3.31); benefits in everyday life (3.48); efficacy of science and technology convergence (3.35); convergence efficacy with humanities, social science, and arts (3.31); and CUDA competency (3.41). The score for interest in CUDA was lower than that for the recognition of CUDA benefits. Significant positive correlations were observed between all factors except between risk dietary management and both nutrition and weight management (P < 0.01). Interest in CUDA and recognition of the need for convergence exhibited a positive and significant effect on all factors of the perception of CUDA benefits and efficacy. The subgroup factors of dietary safety management competency and the recognition of CUDA had a positive effect on the CUDA competency (P < 0.001, R ² = 0.58).
Conclusions
Strengthening dietary safety management competency and increasing the awareness of CUDA can enhance adolescents’ convergence competency. Therefore, CUDA and targeted education must be actively promoted among adolescents.

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[English]
The frequency of convenience food consumption and attitude of sodium and sugar reduction among middle and high school students in Seoul: a descriptive study: Seoyeon Park, Yeonhee Shin, Seoyeon Lee, Heejung Park; Korean J Community Nutr 2023;28(4):269-281. Published online August 31, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.4.269

Abstract PDF: Objectives
This study aimed to examine the frequency of convenience food consumption at convenience stores (CVS) and the CVS usage patterns of middle and high school students as well as to understand students’ attitude toward sodium and sugar reduction.
Methods
We used an online questionnaire for data collection. The questionnaire comprised five distinct categories: general characteristics, CVS usage, frequency of consumption according to convenience food menus at CVS, attitude toward sodium and sugar reduction, and adherence to dietary guidelines.
Results
A total of 75 students from Seoul (14 middle school students and 61 high school students) participated in the study. Most respondents visit CVS 3-5 times a week. CVS are predominantly used during weekdays, mostly during lunch, and dinner. The students mostly checked the caloric content and expiration date as food labeling information. The participants were aware of the need to reduce their sugar and sodium intake. Among frequent CVS convenience food consumers, there was an increased consideration of the need to reduce their sugar and sodium consumption, despite their actual selection of foods with high sugar and sodium content. Additionally, they did not check the sugar and sodium levels indicated in food labeling. Further, the dietary action guide from the Ministry of Health and Welfare were poorly followed by most students.
Conclusions
There is a need for nutrition education specifically addressing the sugar and sodium content of the convenience foods predominantly consumed by students. Additionally, educating students with frequent convenience food consumption to actively check the sugar and sodium information on food labels could help promote healthier food choices.

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[English]
Nutritional status and dietary behavior of North Korean adolescent refugees based on Nutrition Quotient for Korean adolescents: a preliminary study: Young Goh, Seong-Woo Choi, So-Yeong Kim, Jeong-Hwa Choi; Korean J Community Nutr 2023;28(1):1-10. Published online February 28, 2023; DOI: https://doi.org/10.5720/kjcn.2023.28.1.1

Abstract PDF: Objectives
This study aimed to investigate the nutritional status and dietary behavior of adolescents from North Korean refugee (NKR) families residing in South Korea (SK), who are known to be at a higher risk of malnutrition due to their lower socioeconomic status and facing other psychological challenges.
Methods
A total of 178 adolescents (91 males and 87 females) from NKR families were included in the analysis, and their demographic details such as age, birthplace, parental nationality, and duration of their settlement in SK were collected through questionnaires. Anthropometric measurements were also taken to determine their growth and nutritional status according to the 2017 Korean National Growth Charts for children and adolescents. The study used the Nutrition Quotient for Korean Adolescents (NQ-A) questionnaire to assess the dietary behavior of the participants.
Results
Approximately 11.8% and 10.1% of participants were identified with malnutrition and obesity, respectively. The total mean score for the NQ-A was 50.1. The mean scores for the individual factors of balance, diversity, moderation, environment, and practice were 49.2, 44.7, 43.8, 51.2, and 61.5, respectively. Approximately 47.2% of participants had a low NQA grade. However, there was no significant difference in the NQ-A scores according to their nutritional status or duration of time in SK.
Conclusions
Adolescents from NKR families exhibited both malnutrition and obesity. However, their dietary behavior, as assessed using the NQ-A, did not vary with their nutritional status. The unique challenges and related dietary behavior of North Korean adolescent refugees should be taken into consideration, when developing targeted strategies for nutritional education and health management programs.

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[Korean]
Dietary Behaviors Associated with Health Perception of Korean Adolescents from Multicultural Families: based on data from the 2017 ~ 2019 Korea Youth Risk Behavior Surveys: YueRong Hu, SuJin Song; Korean J Community Nutr 2022;27(3):192-204. Published online June 30, 2022; DOI: https://doi.org/10.5720/kjcn.2022.27.3.192

Abstract PDF

Objectives
This study examined the association between dietary behaviors and perceived health status among Korean adolescents from multicultural families.
Methods
This cross-sectional study included 2,459 Korean adolescents from multicultural families (aged 13 ~ 18 years) who participated in the 2017 ~ 2019 Korea Youth Risk Behavior Surveys. Information on the sociodemographic variables, dietary behaviors, and lifestyle variables was selfreported using a web-based questionnaire. The dietary behaviors analyzed in this study were the breakfast and food intake frequencies, including fruit, vegetable, milk, fast food, carbonated drink, sweet drink, and high caffeine/energy drinks. The adolescents’ health perception was self-rated as healthy, average, or unhealthy. The dietary behaviors associated with health perception were examined using a multiple logistic regression after adjusting for the confounding variables.
Results
In this study population, 7.6% of adolescents perceived their health status as unhealthy, and 25.4% perceived it as average. The adolescents who were girls, middle school students, and in households with a low economic status showed significantly higher percentages of poor health perception (P-values < 0.001). Skipping breakfast was significantly associated with a negative health perception. Compared to the adolescents who consumed fruits every day, those who did not consume fruits during the previous week showed a higher odd ratio (OR) for a negative health perception [OR = 2.29, 95% confidence interval (CI) = 1.32–3.97]. The adolescents who frequently consumed carbonated drinks ( 5 times/week) perceived their health status as unhealthy relative to those who did not consume carbonated drinks (OR = 2.15, 95% CI = 1.25–3.71). Skipping breakfast was significantly associated with an increased OR for a negative health perception in girls but not in boys. Compared to adolescents with a normal weight, those with overweight/ obesity (OR = 1.75, 95% CI = 1.21–2.52) and underweight (OR = 2.19, 95% CI = 1.25–3.82) showed higher ORs for negative health perception. Positive associations of overweight/obesity and underweight with negative health perception were observed in boys but not in girls.
Conclusions
Dietary behaviors and weight status were associated with the health perception in Korean adolescents from multicultural families. These findings suggest that nutrition interventions on breakfast intake and healthy food choices for this population might effectively improve their weight and perceived health status.

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The unequal weight of COVID-19 pandemic: national trends in body mass index among Korean adolescents by immigrant-origin and gender from 2013 to 2022
Nari Yoo, Yumin Hong, Yoonyoung Choi
International Journal of Adolescence and Youth.2024;[Epub] CrossRef

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[Korean]
Biochemical Characteristics and Dietary Intake according to Household Income Levels of Korean Adolescents: Using Data from the 6th (2013 ~ 2015) Korea National Health and Nutrition Examination Survey: Yu-Kyeong Kwon, Sook-Bae Kim; Korean J Community Nutr 2021;26(6):467-481. Published online December 31, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.6.467

Abstract PDF

Objectives
The purpose of this study was to examine the biochemical characteristics, intake of energy, and nutrients by household income levels of Korean adolescents aged 12 to 18 years.
Methods
Data from the 6th (2013 ~ 2015) Korea National Health and Nutrition Examination Survey (KNHNES) were used for the study. A total of 1,839 (966 boys, 873 girls) subjects were included, and they were divided into four income groups according to their household income level. We examined general characteristics (gender, region of residence, skipping or not-skipping breakfast, lunch, dinner, frequency of eating-out), anthropometric characteristics (height, weight, weight status), biochemical characteristics (fasting plasma glucose, blood urea nitrogen, creatinine, triglycerides, cholesterol, HDLcholesterol, hemoglobin, and hematocrit), the quantitative intake of energy and nutrients using the Korean Dietary Reference Intakes (KDRI), and the qualitative intake evaluated by the nutrition adequacy ratio (NAR) and mean nutrition adequacy ratio (MAR) of the four groups.
Results
There were significant differences by income group within the region of residence and the rate of skipping breakfast, lunch, and dinner. The low-income group had a higher rate of skipping breakfast, lunch, and dinner. According to the income group, there was a difference in the height of boys, and there was no difference in the weight and obesity of boys and girls. In the biochemical characteristics, only the hematocrit of girls showed differences by income group. The quantitative intake of energy and nutrients compared with KDRI differed by income group. There were differences in energy, carbohydrates, proteins, thiamin, riboflavin, niacin, and phosphorus levels in boys and protein, vitamin A, niacin, and sodium levels in girls. The qualitative intake of energy and nutrients examined using NAR and MAR also differed according to the income group. The NAR showed differences in calcium in boys and vitamin C and calcium in girls. The MAR revealed differences in both boys and girls by income group.
Conclusions
Among adolescents in the low-income group, the rate of skipping meals was high, and the quantitative and qualitative intake of energy and some nutrients was low. It is suggested that the nutritional intake can be improved by lowering the rate of skipping breakfast, lunch, dinner. We suggest that even just providing breakfast in schools can be considered highly effective in improving the rate of avoidance of skipping meals and improving nutrient intake. Also, we suggest that it is necessary to improve the food environment, food availability, and food accessibility through national and social support for low-household income adolescents.

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Comparison of Food and Nutrient Intake according to the Income Level in Korean Adult Single-Person Households: Using Data from the Korea National Health and Nutrition Examination Survey (2016-2018)
Min-Hee Han, Bok-Mi Jung
The Korean Journal of Community Living Science.2024; 35(3): 445. CrossRef
Correlation between adolescents’ dietary safety management competency and value recognition, efficacy, and competency of convergence using dietary area: a descriptive study
Yunhwa Kim, Yeon-Kyung Lee
Korean Journal of Community Nutrition.2023; 28(4): 317. CrossRef
제한적인 등교 상황에서 중고등학생의 신체적·정신적 건강 및 식생활 행태 변화:
민지 손, 은주 윤
Korean Journal of Food and Cookery Science.2023; 39(3): 213. CrossRef
A Qualitative Study of Changes in Adolescent Dietary Behavior during the COVID-19 Pandemic and Improvement Strategies for School-Provided Nutrition Counseling
Yeseul Na, Jieun Oh, Kyung Won Lee
Human Ecology Research.2023; 61(1): 39. CrossRef

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[English]
Sugar Reduction Perception and Sugary Food Intake among High School Students in Incheon: Gyeong-Ja Bae, Mi-Kyeong Choi; Korean J Community Nutr 2021;26(2):111-121. Published online April 30, 2021; DOI: https://doi.org/10.5720/kjcn.2021.26.2.111

Abstract PDF

Objectives
This study examined ways to promote desirable eating habits by choosing foods with low sugar contents and provide nutrition education in adolescents. Methods: This study was a cross-sectional survey. The sugar reduction perception and knowledge, sugary food preference, and intake frequency of 487 male and female high school students in Incheon were analyzed comparatively. Results: Approximately 94.9% and 94.5% of the subjects were unaware of the promotion of a sugar reduction policy and the sugar reduction in the basic guidelines for school meals, respectively. Approximately 95% of them had not received any sugar reduction nutrition education, and 90% were not interested in sugar reduction. The perception for sugar reduction was significantly higher in girls (3.43 out of 5 points) than in boys (3.16 out of 5 points) (P < 0.001). Knowledge about sugar was 3.65 out of 6 points in girls and 3.04 points in boys (P < 0.001). The preference and intake frequency for fruits of the total students were 4.24 out of 5 points and 2.56, respectively. For beverages, the preference was significantly higher in boys (3.97 points) than in girls (3.70 points) (P < 0.001), and the intake frequency was significantly higher in boys (2.26 points) than in girls (2.08 points) (P < 0.001). The preference for snacks was significantly higher for girls (4.19 points) than boys (4.02 points) (P < 0.01), and the intake frequency was 2.22 points in boys and 2.17 in girls, showing no significant difference. Sugar reduction perception and knowledge about sugar showed significant negative correlations with the snack intake frequency (r = -0.11, P < 0.05; -0.13, P < 0.05) after adjusting for gender, grade, and body mass index. Conclusions: The high school students' perception of sugar reduction was very low, and there was a significant correlation with sugary food intake, suggesting that the sugary food intake will decrease as the sugar reduction perception and knowledge about sugar increase.

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Sugar Intake and Perception of Sugar Reduction among University Students in Gwangju
Yeon-Ok Park
Journal of the Korean Society of Food Science and Nutrition.2023; 52(11): 1170. CrossRef
충북지역 중등학생의 건강식생활 관련 식행동과 영양관리 정책에 대한 인식
은서 고, 영은 이
Korean Journal of Food and Cookery Science.2023; 39(3): 197. CrossRef

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[English]
Biochemical Characteristics and Dietary Intake according to the Frequency of Milk Consumption in Korean Adolescents: Data from the 2010~2011 Korea National Health and Nutrition Examination Survey: Ji Hyun Kim, Sook-Bae Kim; Korean J Community Nutr 2020;25(6):485-501. Published online December 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.6.485

Abstract PDF

Objectives
The purpose of this study was to examine the biochemical characteristics and dietary intake of adolescents aged 12 to 18 years according to the frequency of milk consumption. Methods: Data from the 2010~2011 Korea National Health and Nutrition Examination Survey was used for the study. The study examined adolescents’ (12~18 years) demographic characteristics (house income level, residence region, skipping or not-skipping of breakfast/lunch/dinner, eatingout frequency), anthropometric characteristics (height, weight, weight status), biochemical characteristics (fasting plasma glucose, blood urea nitrogen, creatine, triglycerides, cholesterol, HDL-cholesterol, hemoglobin, hematocrit) and nutrient intakes through quantitative and qualitative evaluation using the Korean Dietary Reference Intakes (KDRI), index of nutrition quality (INQ), nutrition adequacy ratio (NAR) of 3 groups (< 1/week, 1~6/week, 1/day) according to the frequency of milk consumption. Results: There were significant differences in gender and income levels among the 3 groups. There were no differences in height, weight, and weight status among groups. There were differences in biochemical characteristics and nutrient intake. In boys, there were differences in the mean of BUN and HDL-cholesterol, in quantitative intakes of riboflavin, calcium, phosphorus, potassium by KDRI levels, in qualitative intakes of riboflavin, calcium, phosphorus by INQ and riboflavin, calcium, phosphorus by NAR among 3 groups. In girls, there were differences in the mean of blood urea nitrogen, creatine, HDL-cholesterol, in quantitative intakes of protein, riboflavin, calcium, phosphorus by KDRI levels, in qualitative intakes of riboflavin, calcium, phosphorus by INQ and riboflavin, calcium, phosphorus by NAR among the 3 groups. Conclusions: In Korean adolescents, boys had a higher frequency of milk consumption than girls, and higher the income level, higher the frequency of milk consumption. Consumption of milk appeared to have a positive association with triglycerides, HDL-cholesterol, and indices related to muscle mass. Regular consumption of milk is an important factor in enhancing the intake of riboflavin, calcium, and phosphorus, which adolescents lack. The results of the study indicate a need to prepare an environment and education program to increase milk consumption in adolescents at home and school.

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Biochemical Characteristics and Dietary Intake according to Household Income Levels of Korean Adolescents: Using Data from the 6th (2013 ~ 2015) Korea National Health and Nutrition Examination Survey
Yu-Kyeong Kwon, Sook-Bae Kim
Korean Journal of Community Nutrition.2021; 26(6): 467. CrossRef

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[English]
Association between Stress and Nutritional status of High School Students in Chungbuk using Nutrition Quotient for Korean Adolescents: In Young Kim, Mi-Kyeong Choi; Korean J Community Nutr 2020;25(5):361-373. Published online October 31, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.5.361

Abstract PDF

Objectives
The purpose of this study was to investigate the relationship between stress levels and eating habits in adolescents. Methods A total of 453 male and female high school students were surveyed to ascertain their stress levels, Nutrition Quotients for Korean Adolescents (NQ-A), and stress-related eating behavior. Results The average age of the subjects was 18 and they were mostly from nuclear families. Their average daily conversation time with their parents was between 10 to 30 minutes. The average sleep time for female students was observed to be less than that of male students. The satisfaction level of academic achievement of female students was significantly lower than that of the male students (P < 0.001). The average stress level score for female students was 2.7 out of 5, which was significantly higher than the male student's score of 2.4 (P < 0.001). The eating speed of male students was related to stress levels. Both male and female students ate more and craved spicy food when under stress. All male and female students had significantly ascending NQ-A scores rising in the order of stress from ‘low level’ to ‘medium level’, to ‘high level’ (P< 0.001). There was a significant negative correlation between the stress score and the NQ-A score adjusted for general characteristics (r = −0.29, P < 0.001). Conclusions Since stress and NQ-A were negatively correlated in high school students, higher stress levels can be associated with irregular eating habits and negative eating behavior. Therefore, stress management and nutrition education focusing on stress status are needed for adolescents.

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Study on the relationship between dietary habits and the quality of life of some high school students in Seoul based on the nutrition quotient for adolescents (NQ-A)
Ho-Jung Kim, Jung-Sug Lee, Yookyung Kim
Journal of Nutrition and Health.2024; 57(3): 320. CrossRef
Development of evaluation items for adolescents’ dietary habits and nutritional practices reflecting eating behaviors and food environment
Jimin Lim, Hye Ji Seo, Jieun Oh
Journal of Nutrition and Health.2024; 57(1): 136. CrossRef
충북지역 중등학생의 건강식생활 관련 식행동과 영양관리 정책에 대한 인식
은서 고, 영은 이
Korean Journal of Food and Cookery Science.2023; 39(3): 197. CrossRef
Revision of Nutrition Quotient for Korean adolescents 2021 (NQ-A 2021)
Ki Nam Kim, Hyo-Jeong Hwang, Young-Suk Lim, Ji-Yun Hwang, Sehyug Kwon, Jung-Sug Lee, Hye-Young Kim
Journal of Nutrition and Health.2023; 56(3): 247. CrossRef
The Relationship between Lifestyle and Nutrition Quotient in Middle School Students
Ha Jin Park, Ho Kyung Ryu
The Korean Journal of Community Living Science.2021; 32(2): 243. CrossRef

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[English]
Eating Out Status according to Skipping and Type of Breakfast among Male High School Students in Incheon: Eun-Jin Choi, Mi-Kyeong Choi; Korean J Community Nutr 2020;25(2):102-111. Published online April 30, 2020; DOI: https://doi.org/10.5720/kjcn.2020.25.2.102

Abstract PDF

Objectives
The frequency of eating out among adolescents seems to be connected to a high rate of skipping breakfast and be interrelated to various nutritional problems. The purpose of this study was to assess the dietary habits of breakfast and eating out and investigate their relationships in male adolescents.
Methods
This study conducted a cross-sectional survey. Dietary habits and eating out status were surveyed among 510 male students at a high school in Incheon and compared according to their breakfast skipping and breakfast type.
Results
The percentages of subjects in the breakfast skipping group and breakfast group were 41.0% and 59.0%, respectively, and the breakfast group comprised a Korean meal group (74%) and a convenience meal group (26%). In the breakfast skipping group, the percentage of subjects buying and eating snacks due to hunger was 39.7%. Reasons for eating breakfast among subjects who ate breakfast were because parents prepared breakfast (41.9%) and out of habit (31.5%) in the Korean meal group, in contrast to because parents prepared breakfast (36.7%) and due to hunger (29.1%) in the convenience meal group (P < 0.001). Breakfast preparer was mother (91.4%) in the Korean meal group, in contrast to mother (67.1%) and self (20.3%) in the convenience meal group (P < 0.001). A high proportion of the breakfast group woke up at 07~07:30 or 06:30-07, whereas a high proportion of the breakfast skipping group woke up at 07~07:30 or after 07:30, showing a significant difference according to breakfast skipping (P < 0.001). A high proportion of the breakfast group spent 10,000 won (32.5%) a week eating out while a high proportion of the breakfast skipping group spent 20,000 won or more (28.2%), showing a significant difference (P < 0.01).
Conclusions
About 40% of male high school students skipped breakfast and consumed snacks as a solution after breakfast skipping. The students who skipped breakfast spent more money on eating out. These results show that breakfast status may be related to eating out. Therefore, practical education on food choice and meal preparation along with regular breakfast instruction is needed in male adolescents.

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Analytic Hierarchy Process approach to estimate weights of menu management in the school foodservice
Hyo Bin Im, Seo Ha Lee, Hojin Lee, Lana Chung, Min A Lee
Journal of Nutrition and Health.2024; 57(3): 349. CrossRef
Study on the Eating Out Behavior and the Status of Meal Delivery and Take-Out Consumption according to the Food-related Lifestyles of Adolescents : Using the Consumption Behavior Survey for Food in 2020
Eun Jung Lee, Hyeon Min Yang, Yeong Ju Lee, Sun A Choi, Jeong Ok Rho
Journal of the East Asian Society of Dietary Life.2024; 34(4): 284. CrossRef
A prediction model for adolescents’ skipping breakfast using the CART algorithm for decision trees: 7th (2016–2018) Korea National Health and Nutrition Examination Survey
Sun A Choi, Sung Suk Chung, Jeong Ok Rho
Journal of Nutrition and Health.2023; 56(3): 300. CrossRef
Trends in Prevalence and the Differentials of Unhealthy Dietary Habits by Maternal Education Level among Korean Adolescents
Yunseo Chung, Kyunghee Jung-Choi, Bo Young Kim, Kyoung Ae Kong
The Ewha Medical Journal.2021; 44(4): 133. CrossRef

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Original Articles

[English]
Dietary and Lifestyle Factors Associated with Weight Status among Korean Adolescents from Multicultural Families: Using Data from the 2017–2018 Korea Youth Risk Behavior Surveys: SuJin Song, Hyojune Song; Korean J Community Nutr 2019;24(6):465-475. Published online December 31, 2019; DOI: https://doi.org/10.5720/kjcn.2019.24.6.465

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