• Journal of Nutrition and Health
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• v.30 no.8
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• pp.960-975
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• 1997

This study was carried out to evaluate the iron nutrition status of 212 middle school students(106 males and 106 females) residing in Seoul(13-14 years old ) using eating patterns and a measurement of anthropometrical determination and hematological indices. Fasting blood samples were taken from all subjects, serum iron (SI) and total iron binding capacity(TIBC) concentrations were measured, and transferrin saturation(TS) levels were calculated. Iron and other nutrient intakes were estimated by a semi-quantitative frequency questionnaire. The level of TS(%) which was calculated with TIBC and SI in females(20.4$\mu\textrm{g}$/dl) was significantly lower(p<0.050 than that of males (27.4$\mu\textrm{g}$/㎗). The prevalence of iron deficiency was found to be 36.7% when defined by TS(%) (<05%). Mean daily intake of total iron in the study subjects was 14mg and heme iron intake was 5.4mg(38.1%) . There was a significant negative correlation between the level of SI and the income level and a positive correlation with the level of TIBC and the income level. TIBC had a positive correlation with the anthropometric variables(Ht, Wt, BMI, RI and PIBW). SI and TS had a negative correlation with body fat percentage. There was a positive correlation between energy intake and TIBC only among females. The logistic regression analysis revealed that income level, body fat percentage , weight and energy intake were major determinants of low SI levels. Among the determinants of abnormal TIBC levels were weight , height, income level and energy intake. Finally , among those of low TS% were iron and energy intake and income level. These observations suggest that physical status, body fat percentage energy and iron intakes and income level are risk factors for iron-deficiency anemia among the middle school students in Seoul.

• Journal of Nutrition and Health
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• v.28 no.2
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• pp.152-161
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• 1995

The purpose of this study was to provide a baseline assessment and relationship of nutrition attitude and food habit among mothers of middle school students. Eighteen questions were developed to test nutrition attitude and food habit test was used to reflect dietary behavior. The questionnare was mailed to a representative sample of nationwide middle schools, and was asked to be answered by mothers of one class' students. Usable questionnares were recieved from 4,694 participants of 99 schools. The mean score of nutrition attitude was 65.9 out of minimum possible score 18 and maximum 90. Nutrition attitude was weaker in the areas of control and self-efficacy than in intention and outcome-expectation. The mean score of food habit was 38.6 out of minimum possible score 12 and maximum 60. Food habit was weaker in the areas of protein, vitamins & minerals and dietary fiber than in the other areas. Nutrition attitude and food habit scores were lower among rural, manually working, lower educated and low-income mothers. There was a significant correlation between nutrition attitude and food habit(r=0.37, p<0.001).

• The Research Journal of the Costume Culture
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• v.20 no.1
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• pp.1-17
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• 2012

The purposes of this study were to analyze factors of mass customization for hair salon's customers and to identify the differences among groups segmented by mass customization level. The self-administered questionnaire was used for data collection. The respondents were 423 women using hair salons. Factors of hair salon's mass customization implementation were sanitary condition & hair salon's staff, hair styling technique, communication service, tangible service, monetary support, convenience service, and visible service. Hair salon's customers were categorized into the high-level of needs group, the middle-level of needs group, and the low-level of needs group. The high-level of needs group consisted of university students or women with a higher education or higher income. This group selected beauty salons by the promotion or advertisements, preferred their own unique hair style or a little-fashionable hair style, and showed a lower level of patronage. The middle-level of needs group consisted of university students or women with a higher education or higher incomes. They selected hair salons by service prices, preferred a basic hair style, and showed a midium level of patronage. The low-level of needs group consisted of women with lower education or lower income. They selected beauty salons by career of hair dressers or the promotion or advertisement, preferred highly fashionable hair style, and showed high level of patronage.

• Journal of Families and Better Life
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• v.30 no.6
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• pp.23-37
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• 2012

Using data from the 2008 Korean Longitudinal Survey of Women and Families, this study investigated the income class differences in the modes, amount of time, and expenses for caring and educating a child in early childhood. The sample consisted of 1,849 households with a child aged 6 years or less. The major findings were as follows. First, the lower-income class was more likely to rely on child care centers and less likely to use services provided by kindergarten or private education. Their total amount of time required to provide care and education for their child was about 4 or 5 hours less than that of the other income classes; this result was due to the fact that they consumed less hours for home care, kindergarten, and private education. Second, we found there were more similarities than differences between middle-income and upper-income classes in the modes, amount of time, and expenses to care for and educate their young children; however, the middle-income class used less private education than the upper-income classes in terms of usage rate and length of time. Lastly, the other variables which were significantly related with the amount of time and expenses for child care and education included mother's employment, age of the child, and having siblings, and the family size. Based on the results, implications for public policy on early childhood care and education were suggested.

• East Asian Economic Review
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• v.16 no.1
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• pp.67-96
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• 2012

Previous literature has looked merely into the effect of trade facilitation on aggregate trade, or analyzed trade growth using the extensive and intensive margins. This paper blends these two lines of research for a detailed analysis of the impact of trade facilitation on trade by using highly disaggregated trade data and a more composite index for measuring trade facilitation, also taking into account the export sectors and income levels of countries. As a result, this paper finds that developing countries with higher trade facilitation levels export a wider range of products, especially primary goods. While trade facilitation levels do not have a statistically significant association with trade at the intensive margin in general, further analysis shows that the impact of advanced trade facilitation is the largest for lower middle-income countries in primary goods trade at the intensive margin, and the largest for upper middle-income countries in manufactured goods trade at the intensive margin. More importantly, our policy simulation results suggest that trade facilitation-related policy reforms enable developing countries to benefit from increased trade in manufactured goods at the extensive margin.

• Korean Journal of Community Nutrition
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• v.3 no.4
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• pp.594-608
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• 1998

Comparative studies regarding the nutritional status of 93 home-living elderly people taking free congregate lunch meals(FL) and 87 middle income class elderly people(MI) were performed in Taejon city. Data was obtained from questionaires, anthropometry and interviews for the 24-hour dietary recall of 2 nonconsecutive days during August, 1996. The average age for FL was 75.8 years. The monthly familly income for FL belonged to the low-income class. FL females had lower heights and weights than MI females. The average daily nutritional intake of both FL and MI were low, particularly in FL whose %RDA of energy was 68.5%, protein 65%, Ca 29.6%, Fe 50.8%, vitamin A 34.5%, vitamin E 30.5%, riboflavin 40.6%, vitamin C 76.9%. MI's %RDA of energy was 76.4%, protein 80.a2%, Ca 48.1%, Fe 78.6%, vitamin A 67.3%, vitamin E 117.4%, riboflavin 45.6%, vitamin C 136.5%. Comsumption of Zn, vitamin $B_6$ and folic daily average. There was no nutrient having average INQ(Index of nutritional quality) over 1 for either group. The INQs for protein, Ca, Fe and vitamin A were 0.802, 0.377, 0.625 and 0.296 in FL, and 0.900, 0.601, 0.784 and 0.602 in MI, respectively. The MAR(Mean adequacy ratio) was low with the value of 0.500-0.518 in FL and 0.630-0.723 in MI. The percentage of main nutrients from lunch was the highest among the three meals for FL males, while that from breakfast was the highest for MI. Free lunches taken by FL supported higher percentages of main nutrients than home-lunches taken by MI. Eating-out was done more frequently by MI than by FL and that eating-out brought them more nutritional intake. The above data indicated that the dietary nutritional intake status of the FL elderly was very poor in both quantity and quality and that free congregate lunch significantly contributed to the daily nutrient-intake for the FL elderly.

• Journal of the Korean Home Economics Association
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• v.36 no.5
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• pp.125-135
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• 1998

The purpose of this study is to investigate the overall levels of the middle-aged employed men's attitudes toward retirement and plans for post-retirement life, and to explore the relative effects of personal, family, and job characteristics on retirement attitude and the level of retirement plan. The data were collected from the 438 middle-aged (ranging from 41 to 50) employed men through the structured questionnaires. The data were analyzed using frequency, percentile, average, standard deviation, and multiple regression analysis. The results of the data analysis show that most of the respondents had neither positive nor negative attitude toward retirement and the level of planning for post-retirement life was slightly higher than average score on the scale. Next, the positive attitudes of middle-aged employed men toward retirement were observed from those who have higher education, larger household income, higher job security and lower job stress respondents who hold professional, administrative, or official jobs were more positive toward retirement than those who hold professional, administrative, or official jobs were more positive toward retirement than those who hold manufacturing or sales job. A well-planned post-retirement life was found among those who have better health, higher job satisfaction, job security and job orientation. Job characteristic variables such as job security and job satisfaction showed stronger impact than personal or family ones on the attitude toward retirement and the level of retirement planning. Household income and health also had significant effects.

• Journal of the Korean Home Economics Association
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• v.33 no.3
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• pp.279-289
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• 1995

The purpose of this research was to analyze the residential environment of the middle aged apartment-residents in seoul as a part of collaborative study on family life issues of them. the sampling area was divided tin to kangnam and Kangbuk according to the residential location and upper middle group and lower middle group according to the size of the apartment unit. The data were collected from 307 fulltime housewives with at least one child in a junior or senior high school. Housing circumstance was generally adequate to the middle aged apartment-residents in seoul. the findings supported the family housing adjustment theory well. however, the results showed that the housing policies should reflect to the various housing demands on the structure type, size, and tenure of dwelling, unaffordability of low income renters, and stabilizing the housing price as well as expanding the housing mortgages for the middle aged to prepare for one's own aging.

• The Korean Journal of Community Living Science
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• v.21 no.3
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• pp.323-339
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• 2010

This study examines how family and school social capital moderate the relation between family income and academic achievement. I use the data from the Korean Educational and Employment Panel(KEEP) on the third year middle school students in 2004. Results show that higher levels of family and school social capital, as well as financial capital such as family income are more positively associated with academic achievement. In addition, family and school social capital are served as moderators of the influences of family income on academic achievement. For example, higher parental concern about children and teacher-student bonding provides an extra boost to the positive relationship between family income and student achievement. Furthermore, lower educational expectations can make the relation between income and achievement negative. These findings underscore the importance of social capital at home and at school as the alternatives to promote academic achievement. In particular, greater concern and support encouraging social capital at home and school should be directed at low-income students who are struggling with academic achievement.

• Journal of Nutrition and Health
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• v.36 no.7
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• pp.769-776
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• 2003

This study has analyzed the association of physical activity and television watching time with obesity in 30-50 aged women from middle income town in Busan city area. Data were obtained using a questionnaire, including information about physical activity, TV watching time and health habit; social data regarding educational level and monthly income; family history of chronic condition. Height and weight were measured. Outcome variable was obesity, defined as a body mass index 25 kg/m$^2$ or greater. Odds ratios (OR) for obesity were estimated by multivariate logistic regression, and interpreted as a relative risk of obesity. The prevalence of obesity was 11.8%. The mean BMI of obese women was 26.9 kg/m$^2$. The OR of obesity was higher in subject of 40s than 30s. Subjects who had higher educational level presented lower OR than those of elementary or middle school education. Family income was not associated with obesity. Women having a family history of chronic condition had higher risk of obesity than those who did not have it. The OR was lower in active people at work (OR = 0.51; 95% CI = 0.26 - 0.98) than in inactive ones, and the ORs associated with regular exercise or activity at leisure time were not statistically different. However, subjects watching TV $\geq$ 3.5 hr/day showed higher OR (OR = 2.34; 95% CI = 1.16 - 4.74), compared with those watching TV $\geq$ 1.5 hr/day. Association of the joint classification of physical activity variables with obesity was estimated. The highest relative risk of 5.99 was in women in physically inactive at work and high category of TV watching ($\geq$ 3.5 hr/day). Even in women in active at work, the watching TV $\geq$ 3.5 hr/day made them have the high OR (OR = 2.44; 95% CI = 1.03 - 5.77). And at each time level of TV watching, the increasing activity level at work was associated with lower OR for obesity. These findings suggest that both TV watching time and physical activity at work were related to obesity in adult female, each with independent effects on obesity. TV watching time seems to be a significant factor that could partly evaluate the energy expenditure.