• The Korean Journal of Food And Nutrition
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• v.25 no.3
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• pp.579-589
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• 2012

This study was performed to investigate the eating habit, body image, and weight control behavior by BMI in Korean female high school students. Data on the 16,574 subjects was obtained from the sixth Korea Youth Risk Behavior Web-based Survey (2010). Only 52.2% of the subjects had regular breakfast. The rate of skipping breakfast was higher in the underweight group than in the obese group, but the rate of skipping dinner was on the contrary to this. Underweight students had a higher intake frequency of fruits, fast food, instant noodle, and snacks than the obese groups. 3.5% of underweight students considered themselves to be overweight or obese. 53.4% of obese students considered themselves to be overweight. The experience of weight control increased according to BMI, but underweight students considered weight control as an effort to be slimmer. Meal restriction was used more frequently to control weight. The perceived stress level was higher in obese student, especially due to appearance. Therefore, an appropriate, integrated and personalized high school nutrition program should be established for proper body image perception and to develop the self-esteem of female high school students.

• Korean Journal of Community Nutrition
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• v.29 no.1
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• pp.65-80
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• 2024

Objectives: This study aims to compare changes in physical factors, health behaviors, eating habits, and nutritional intake among Korean male and female adults over a period of three years (2019-2021) before and after the outbreak of coronavirus disease 2019 (COVID-19). Methods: This study utilized raw data from the 8th Korea National Health and Nutrition Examination Survey (2019-2021). The participants in this study included 6,235 individuals in 2019, 5,865 individuals in 2020, and 5,635 individuals in 2021. Individuals whose daily energy intake was less than 500 kcal or exceeded 5,000 kcal were excluded from the study. Results: In comparison to 2019, overweight/obesity rates, weight, waist circumference, weekend sleep hours, and resistance exercise days/week increased in both male and female during the COVID-19 pandemic. Regarding eating habits, the proportions of people skipping breakfast, not eating out, consuming health supplements, and recognizing nutritional labels increased in 2020 and 2021, whereas the rate of skipping dinner decreased. Total energy intake has continued to decrease for the two years since 2019. A comparison of nutrient intake per 1,000 kcal before and after the outbreak of COVID-19 revealed that intake of nutrients, including protein, phosphorus, iron, vitamin A, riboflavin, and niacin increased, while folic acid intake decreased. In male, calcium, phosphorus, riboflavin, and niacin intakes increased, whereas iron, vitamin C, and folic acid intakes decreased. In female, phosphorus, iron, vitamin A, and riboflavin intake increased significantly, while protein and niacin intake decreased significantly. Conclusions: After COVID-19, the obesity rate, breakfast skipping rate, health supplement intake, and nutritional label use increased, while the frequency of eating out, dinner skipping rate, and total energy intake decreased. These environmental changes and social factors highlight the need for nutritional education and management to ensure proper nutritional intake and reduce obesity rates in the post-COVID-19 era.

• Journal of the Korean Home Economics Association
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• v.42 no.6
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• pp.55-72
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• 2004

Alcohol has as much effect on our lives as the different taste for foods that people have all of the world. Recently, the interest about drinking habits has increased with the rise in health problems for college students with poor health related behavior. The purpose of this study was to evaluate alcohol consumption, smoking and eating behavior of college students in the Kyungsan area. This survey was administered through questionnaires, and the subjects were 177 male and 189 female college students. The self-administered questionnaire was composed of questions concerning social-demographic factors, general characteristics, cigarette smoking, alcohol consumption and eating behavior. The data were analyzed by $\chi$$^2$-test and t-test. According to the survey results, almost of all of the survey subjects drank alcohol. The mean alcohol consumption level per day for male students (33.9${\pm}$29.7g) were significantly higher than for the female students (18.5${\pm}$16.5g), and more than 39.6% of the subjects drank alcohol 1-3 days a week. Alcohol consumption changed the students eating habits. Most students had dietary problems such as fast eating, skipping meal and spending too much money on fast food. The survey about eating behavior of the students showed the male students had more problems when compared with female students. Alcohol consumption levels and alcohol dependence showed a significant positive correlation with smoking cigarettes (r=0.386, p＜0.001). The correlation coefficient between alcohol consumption and eating behavior was negatively correlated with skipping meals (r=-0.121, p＜0.001). However, there were significant and positive correlations with overeating when students were depressed (r=0.130, p＜0.05), with eating meals when watching TV or videos (r=0.085) and with spending money on fast food(r=0.235, p＜0.235). The results indicate that health related behaviors of college students in the present study were fairly good. More attention should be given to college students and their habits of skipping meal, alcohol drinking and smoking, and the fairly good students can act as a model for correct dietary behavior so as to improve overall student health.

• Clinical and Experimental Pediatrics
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• v.59 no.2
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• pp.65-73
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• 2016

Purpose: Only a few studies have explored nationwide trends in lipid profiles among Asian adolescents. We aimed to assess trends in lipid profiles and the associated lifestyle factors among Korean children. Methods: We analyzed data for 2,094 adolescents who were aged 10-18 years and had participated in the Korea National Health and Nutrition Examination Surveys in 1998 and 2010. Results: During 1998-2010, the prevalence of obesity significantly increased in boys, but no changes were observed in girls. Over this period, there was a small but significant decrease in the mean lowdensity lipoprotein (LDL)-cholesterol level in boys (1998, 87.5 mg/dL; 2010, 83.6 mg/dL; P=0.019) and mean triglyceride levels in girls (1998, 90.8 mg/dL; 2010, 85.8 mg/dL; P=0.020). There were no significant changes in the prevalence of dyslipidemia in boys, but a modest decrease was noted in girls (1998, 25.1%; 2010, 18.3%; P=0.052). During the study period, the prevalence of breakfast skipping decreased, whereas that of regular exercise increased in both groups. Daily total energy intake did not change between these years. In multivariable logistic regression analyses, breakfast skipping was associated with increased risk of hyper-LDL-cholesterolemia in boys (odds ratio [OR], 5.77) and hypertriglyceridemia (OR, 2.27) in girls. Regular exercise was associated with decreased risk of hypo-HDL-cholesterolemia (OR, 0.40) in boys. Conclusion: Although the prevalence of obesity in boys increased, favorable or constant trends in lipid profiles were observed among Korean adolescents during 1998-2010. Decrease in breakfast skipping and increase in regular exercise may have contributed to these trends.

• The Korean Journal of Community Living Science
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• v.14 no.3
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• pp.75-87
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• 2003

This study was conducted to find the number of meals skipped and the types of main meals consumed by people in Miryang and Daegu. The subjects consisted of elementary school students(ES), middle school students(MS), high school students(HS), college students(CS) and adults, divided into below the age of 40(AU) and above the age of 40(AA). Data were collected through a 7-day dietary record from 941 subjects. The definition of rice-based meal(RM) and wheat-based meal(WM) depends on the type of grain eaten in the main dish, rice or wheat flour, respectively, regardless of the menu. Out of all the meals consumed by the subjects during 7 days before the survey, 71.5% of the meals consumed were RM, 13.1 ％ of the meals consumed was WM and 12.5% of the meals was skipped. Of the meals skipped, breakfast-skipping was the highest with 27.1%. There's no difference by region and sex. But there were several differences by age. The rates of skipped meal were high for CS, AU, HS, and MS in order. Especially the breakfast-skipping for CS was highest as 47.9%. In the types of main meal, the rates of RM was highest at breakfast and lowest at lunch. The rates of RM was higher in Miryang than Daegu, and there was no difference by sex. The rates of RM was high for AA, HS, ES and AU in order. ES and HS, who had highest rates of WM, had the highest WM consumption at lunch. It is because of school food service at lunch. Since the younger population consumed more RM compared to the older population, it can be speculated that more WM will be consumed in the future. Also efforts need to be made to discourage skipping meals.

• Journal of the Korean Dietetic Association
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• v.17 no.3
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• pp.259-275
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• 2011

The purpose of this study was to determine the factors related to eating behavior of breakfast and dietary life score in elementary, middle, and high school students. This study was conducted by administering questionnaires, and data were analyzed by the SPSS program. The subjects were divided into three groups according to school group (elementary, middle, and high school). The subjects consisted of 1,879 students (male 973, female 906) from 11 schools in Kyungpook. The distribution of subjects was as follows: elementary school children 682, middle school students 702, and high school students 495. The results are summarized as follows. Dietary life score was 72.64 for elementary school students, 64.77 for middle school students, and 62.67 for high school students. Frequency of eating breakfast and reasons for skipping breakfast were significantly different according to school group (P<0.001, P<0.01, respectively). The main reason for skipping breakfast was 'habitual skip' for elementary and middle school students (54.8%, 46.7%) and 'getting up too late' in high school students (55.4%). There were no significant association between frequency of eating breakfast and BMI. However, there were significant differences in school performance and sleeping hours according to frequency of eating breakfast (P<0.001, P<0.01, respectively). Dietary life score was significantly different according to frequency of eating breakfast (P<0.001). These results stress the need for intervention programs aimed at decreasing the frequency of skipping breakfast in children and students at school. Further, those who prepares meals for children must increase their concern about preparing breakfast.

• Korean Journal of Community Nutrition
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• v.4 no.4
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• pp.575-586
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• 1999

We studied teachers' breakfast habits and their preferences on various breakfast types so that we will furnish data to nutrition education including ideal breakfast habit and development of various menus. The meal considered as most importantly were dinner (66.2%), fellowed by lunch(21.6%), all three meals(6.4%) and breakfast(5.8%). Men considered breakfast more importantly than women. On the contrary, women considered dinner more significantly compared to men. The group aged 45 and over emphasized breakfast and all three meal. 78.1% of subjects answered that breakfast is necessary and 61.5% of subjects ate breakfast regularly. Those who have breakfast regularly was lower in women(50.0%) than in men(71.3%). Instead, those who eat breakfast irregularly or skipping it was higher among women(50.0%) than among men(29.7%). The percentages of having breakfast regularly was higher in older groups. For breakfast, 82.1% of subjects had conventional meal which included rice, soup and Kimch. On the other hand, 13.9% of subjects had Western style breakfast such as bread, cornflakes and milk. The major reason for eating breakfast regularly was answered as 'maintain health(71.8%)'. The major reason for eating breakfast irregularly or skipping was 'don't have enough time to eat(48.0%)', 'poor appetite(28.6%)'. The major physical discomfort after skipping breakfast was 'experience brash(35.6%)', 'lack of physical strength(35.1%)'. Subjects answered that breakfast served as 'source of physical strength(64.9%)', 'provides nutritional balance for a day(21.1%)' and 15.0% of subjects ate out breakfast. Therefore, it is suggested that teachers as well as school children be provided breakfast and snack in school. The preference and opinion regarding breakfast types wer conventional food including rice, soup and Kimch(67.0%). There was a little preference in Western style food such as bread, milk and coffee(14.3%), cereals mixture and porridge(10.7%). It was noticeable that 49.1% of females and those who reside in Seoul(42.2%) selected various breakfast types excluding conventional food. Therefore it will be accepted to working women as breakfast if it is nutritionally balanced and cook well in short time.

• Journal of the East Asian Society of Dietary Life
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• v.9 no.2
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• pp.135-148
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• 1999

This is a descriptive study of consumption Patterns of how to take meals in everyday life. The data used was collected from a probability sample by multi-stage cluster sampling, drawn from those who were living in the Ulsan Metropolitan Area. Face-to-face interviews were conducted by trained interviewers with a household member who was between the ages of 15 and 60 in 1989 and had the earliest birthday, resulting in a sample of 1,232 respondents. Univariate and bivariate analyses were made to describe behavioral patterns of taking meals. Meal-taking behaviors under this study include frequency of taking meals per day, regularity of taking meals, which meal to skip, number of frequency of taking a meal by oneself. reasons of skipping and irregular meals, and eatting out. Half of the respondents reported to take meals three times a day, while those who skipped at least a meal reported as one most frequently skipped. Of reasons not to take a meal on a regular basis, "too busy to eat" was most frequently mentioned. Only 32.8% of the respondents reported dining-out once a week.ce a week.

• Korean Journal of Community Nutrition
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• v.11 no.1
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• pp.25-38
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• 2006

This study was carried out to identify factors related to breakfasts in elementary, middle and high school students. This study was surveyed by questionnaires and data was analyzed by SPSS program. Exploratory analysis was conducted according to three school student groups (elementary children, middle school students, and high school students). The subjects were 1,886 school students (female 893, male 959) of 51 schools in the nationwide region. The distribution of subjects was elementary school children 544, middle school students 661 and high school students 681. The results are summarized as follows. Only sixty percent of the subjects had breakfast regularly. About one fourth of the subjects had the habit of skipping breakfast or eating it 2$\sim$3 times per week. Frequency of having breakfast and reasions of skipping breakfast were significantly different according to school student groups (p < 0.001 respectively). The rate of skipping breakfast was $14.4\%$ in elementary school, $16.1\%$ in middle school, and $25.0\%$ in high school. The main reason for skipping breakfast was 'not delicious or poor appetite' in elementary school ($42.5\%$), but 'busy' in middle ($50.2\%$) and high school ($61.1\%$). There was no significant difference in frequency of having breakfast according to living areas (rural and urban). There were not significant differences between frequency of having breakfast and BMI and degree of satisfaction on body weight. But there were significant difference in frequency of having breakfast according to economical status (p < 0.05). There were significant differences in degree of school performance according to frequency of having breakfast (p < 0.001) There was significant relationship between the time of attending school and the frequency of having breakfast. But there were significant relationships between frequency of having breakfast and time of rising. These findings suggested that the time of rising was controlled by having enough time that students eat breakfast. And mother (or person who prepares meals) must have more concerns about preparing breakfast for children and students.

• 한국정보통신설비학회:학술대회논문집
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• 2008.08a
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• pp.63-68
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• 2008

In now days, Ubiquitous technology grow up, so the variety service are developed. Sensor networks purpose is collection information about environment and geographic. But sensor network has limit in power, cost and so on. There is much restriction. Some sensor networks purpose is monitoring environment. And there is some relation in sensing data. Sensor nodes sense information by periods. First sensing data correlate with next sensing data. At this point, this paper suggest power saving method. Some data are same, the other data are similar.