• Korean Journal of Community Nutrition
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• v.22 no.2
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• pp.136-144
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• 2017

Objectives: The purpose of this study was to determine which factors influence the bone mineral density (BMD) of total femur (TF), femoral neck (FN) and lumbar spine (LS) of the adult men by analyzing nationally representative Korean survey data. Methods: This study was conducted based on the data of 1,770 men aged 19-64 years from the Fifth Korea National Health and Nutrition Examination Survey (KNHANES V), 2010~2011. The BMD was analyzed by various factors (general characteristics, anthropometric data, health habits, chronic diseases, nutrient intake status). SPSS statistics for complex samples was used to analyze the data. Results: We observed that the BMD decreased significantly with aging. The BMD in each of the second lowest quartile of waist circumference (in TF & FN) and body mass index (in TF & LS) was lower than the respective BMD in the highest quartile group. The BMD in FN was higher in the group who reported the weight training. The BMD in LS was lower in hypercholesterolemia group than in the normal group. The BMD in TF, FN and LS was lower in hypertriglyceridemia group and in diabetes group than in the normal group. The BMD in TF, FN and LS was higher in the group with < Estimated Average Requirement iron intake. But there was no evidence to suggest that the BMD was related with educational level, income level, smoking, alcohol intake, anemia and nutrient intake status (except for iron). Conclusions: This study suggested that aging, waist circumference, body mass index, weight training, hypercholesterolemia, hypertriglycemia, diabetes were site-specifically associated with the BMD in TF, FN and LS in the adult men. These bone site-specific factors need to be considered for the prevention of osteoporosis.

• Health Policy and Management
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• v.22 no.3
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• pp.365-382
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• 2012

Background : Public hospitals suffer worsening shortage of physicians and face great pressure of recruiting doctors. This study is aim to identify the factors associated with retention of physicians who are working in public hospitals. Methods : We conducted a cross-sectional and self-administered questionnaire survey in July, 2011. A total of 333 physicians responded from the 31 public hospitals. We analyzed the difference of job retention across the variables among doctors stratified as salaried and public health doctors. We used chi-square test and multiple logistic regression analysis. Results : To the salaried doctor, longer work period(OR=2.04 in 3rd quartile), professional autonomy(OR=2.69), and positive attitude toward public health(OR=2.39) affect to the higher job retention whereas complain of low income(OR=0.33) and complain of poor clinical environment(OR=0.26) affects to the lower job retention. To the public health doctors, community connections such as hometown(OR=6.27), spouse factors(OR=3.49), and positive attitude toward public health(OR=3.19) affect to the higher job retention. But longer work period(OR=0.17 in 3rd quartile) affects to the lower job retention. Conclusions : Associated factors of job retention vary across physician's status. Professional autonomy has major impact on the job retention to the salaried doctor. And familial factors as well as community relationship have greatest impact to the public health doctor. Positive attitude toward public health is associated with the higher job retention to the both of salaried and public health doctors.

• Korean Journal of Community Nutrition
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• v.8 no.2
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• pp.149-159
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• 2003

The purpose of this study was to develop and evaluate the validity of a food frequency questionnaire for Korean adolescents (FFQ-A) which could be used in clinical and epidemiological studies of the lifestyle and health of young people. The FFQ-A was designed to reflect the eating pattern of Korean adolescents, and was based on the 1998 Korean National Health and Nutrition Survey Reports. The FFQ-A had 25 (food categories. A total of 125 subjects (aged 13 to 15 years) was recruited from a randomly chosen middle school in a middle-income neighborhood in Anyang, South Korea. Each subject completed a FFQ-A, as well as a three-day dietary record. Data from 117 subjects (boys 47, girls 70) was used in the final analyses. Data on the nutrients was analyzed to estimate the Pearson correlations, Spearman rank-order correlations and agreement with categories. The validity of the FFQ-A was assessed relative to a three-day dietary record. The Pearson correlation coefficients for all the subjects were 0.94, 0.87, 0.77, 0.79, 0.49 and 0.68 for energy, carbohydrate, protein, fat, calcium, and iron, respectively. Similarly the Spearman rank-order correlation coefficients were 0.94, 0.85, 0.79, 0.81, 0.46, and 0.77 for energy, carbohydrate, protein, fat, calcium and iron, respectively. The Kappa values for energy, carbohydrate, protein, fat, calcium, and iron were 0.88, 0.67, 0.63, 0.67, 0.26, and 0.59, respectively. The percentage for misclassification of the lowest quartile into the highest quartile or vice versa ranged from 0% (energy, carbohydrate, or fat) to 16.7% (Vitamin C). Therefore the FFQ-A has a reasonable ability to assess the energy, carbohydrate, protein and fat intakes as estimated from a three-day dietary record of Korean adolescents. (Korean J Community Nutrition 8(2) : 142∼159, 2003)

• Journal of the Korean Society of Food Culture
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• v.25 no.2
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• pp.109-116
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• 2010

Ramyen and Korean noodles (guksu) are popular foods in Korea and around the world. Since 1998, rice consumption in Korea has gradually decreased, whereas consumption of noodles has continuously increased. The purpose of this study is to assess the consumption of ramyen and Korean noodles of Koreans, using data from the Korean National Health and Nutrition Examination Survey (KNHANES) of 2007. Korean adults (>20) were selected to examine the associations between noodle consumption and food and nutrient intake and health status. SAS 9.1 and SUDAAN 9.1 were used for the data analysis. 10.3% of Korean adults consumed ramyen, and 15.4% consumed Korean noodles. The consumption of ramyen and Korean noodles were higher in men than in women, in lunch than in other meals, and in the lowest income quartile than the highest quartile. Ramyen and Korean noodle consumer groups consumed more grain products, seasonings, and oils than the nonconsumer group. The noodle group showed significantly lower systolic blood pressure than the non-consumer group. The noodle groups showed lower rates of hypertension and metabolic syndrome than the non-consumer group. From these results, we conclude that ramyen and Korean noodles may have positive health effects. More studies on the association between noodles and the health of Koreans and those in other countries should be done in the future.

• Korean Journal of Community Nutrition
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• v.18 no.1
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• pp.77-87
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• 2013

This study was conducted to investigate the nutrient intakes of subjects by quartile of percent energy intake from cooked rice, consumption of cooked rice mixed with multi-grains and to evaluate rice consumption in relation to the risk of metabolic syndrome. The subjects were 5,830 males and females aged between 20~64 years based on 2007-2008 KNHNES data. Levels of percent energy intake from cooked rice were classified into 4 groups (Q1, Q2, Q3, Q4 groups: 25% of each) using data of 24-hour recall method from KNHNES. Using medical examination and questionnaire, subjects were classified according to diagnostic criteria of metabolic syndrome. The subjects with higher age, being married, lower education, lower economic level were more likely to take higher percent energy intake from cooked rice. Quartile Q3 of percent energy intake from cooked rice tended to show higher Index of Nutritional Quality (INQ) for fiber, calcium, iron, potassium and vitamin A. INQ of protein, dietary fiber, calcium, thiamin, phosphorus, potassium, riboflavin, niacin and vitamin C by consumption of cooked rice mixed with multi-grains was higher than that by consumption of cooked white rice when adjusted for age. No association with a risk for metabolic syndrome was found for quartile of percent energy intake from cooked rice or cooked rice mixed with multi-grains compared to cooked white rice after adjusting for energy, gender, age, BMI, alcohol, smoking, income and physical activity. In conclusion, consumption of over 54% energy intake from cooked rice or only cooked white rice showed relatively low INQs, but was not associated with a higher risk for metabolic syndrome.

• Journal of Convergence for Information Technology
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• v.10 no.9
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• pp.229-236
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• 2020

The purpose of this study was to investigate the current status of unmet medical need using data from the Korea Health Panel study from 2009 to 2013 (excluding 2010), and to analyze the trends of unmet medical need and related factors. The subjects of this study were 11,598 in 2009, 11,035 in 2011, 10,584 in 2012, 10,099 in 2013, and 7,144 people in panel data, and conducted frequency analysis, chi-square test and generalized estimating equation. As a result of the analysis by year, it was found that women, under middle school graduation, medical aid, the lowest household income and low subjective health status experienced more unmet medical need. As a result of analysis using generalized estimating equation, women, under 40 years of age, under elementary school graduation, lowest quartile household income, subjective health status of less than 20 points, and activity restrictions are more likely to experience unmet medical need. Based on these results, we intend to provide basic data for establishing policies on the use of medical services.

• Korean Journal of Community Nutrition
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• v.5 no.1
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• pp.3-12
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• 2000

The nutritional and health status of low-income alone-living elderly(ALE) was assessed in relation to the activity of daily living (ADL) and nutritional risk factors. One hundred and eighty five ALE over 65 years old, living in the Sungnam area, were interviewed in their homes through questionnaires. The results were as follows : 63.6% of the subjects considered themselves in poor the health and only 4.3% of them considered thermselves healthy. 89.7% of the subjects answered that they were suffering from illness and 29.7% were taking medication. The ADL was assessed through 10 checklist items and the average score of the ADL was $84.78{\pm}11.11$(maximum :100) The nutritional risk index(NRI) was evaluated by 12 risk factors and the average score of the NRI was $4.43{\pm}1.38$ (maximumː12) The scores of the ADL were positively correlated with the scored of the instrumental activities of daily living (IADL)(r=0.7523, p<0.001) and negatively correlated with NRI(r= -0.2694, p<0.001) When subjects were divided into nutritionally high risk group(HNARI: TEX>$NRI{\geq}5$) and nutritionally low risk group(LNRI : NRI<5) according to the USA screening basis, 48.9% of the subjects belonged to the HNRI, But 16.9% of the HNRI and 34.4% of the LNRI belonged to the fourth quartile($Q_{0.75}$) of the ADL, the distribution of which showed significant differences(p<0.05) We suggest that the application of the ADL as a screening tool for nutrition intervention programs for the elderly. Oncemore, further research is needed to develop appropriate checklist items for the ADL and NRI along with the screening basis for the NRI 새 diagnose the adverse nutritional status of the Korean elderly.

• The Journal of Industrial Distribution & Business
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• v.11 no.4
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• pp.39-46
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• 2020

Purpose: This study looks at the relevance between discretionary revenue and book-tax differences (hereafter BTDs). While the study of earnings management, which focused on discretionary accruals and real earnings management, has largely made, it has not yet been actively researched on discretionary revenues. Therefore, it was believed that discretionary revenue would expand the preceding study by looking at its relevance to BTD, known as financial reporting quality and measures of tax avoidance. In general, prior research suggested that earnings management make BTDs larger. Thus, the relationship between discretionary revenue and the amount of BTD is predicted positive. Research design, data and methodology: To this end, the method of discretionary revenues was used and BTDs measured in four ways. First, Earnings before income tax - estimated taxable income divided by total asset (BTD). Second is fractional rank variable of BTDs (FBTD). Third is Indicator variable equals 1 if the firm-year has a positive BTD, 0 otherwise (PBTD). Fourth is that Indicator variable equals 1 if the firm-year has a BTDs in top(bottom) quartile, 0 otherwise (LPBTD, LNBTD). 4,251 samples were analyzed in the Korean Security market (KOSPI) from 2003 to 2014. Results Empirical analysis shows that BTDs increases as discretionary revenue increases. These results were equally observed when BTDs was measured as a ranking variable or as a indicating variable. These results indicate that earnings management through the revenue of managers exacerbate the quality of financial reporting. Conclusions: In sum, discretionary revenues can be used as an indicator of making BTDs larger and meaningful as the first study of the Korean capital market where discretionary revenues affect accounting information quality. Investors need to increase interest in discretionary revenues because intervention in financial reporting through revenue accounts by managers can increase information asymmetry and agency costs. This means that studies on discretionary revenues that have been relatively small should be expanded. The results also provide important implications for the relevant authorities and investors. Despite these benefits, however, measurement error problems with estimates still appear as limited points, and prudent interpretations are required, and additional follow-up studies are needed in that variables that are not yet considered in this study may affect our findings.

• The Journal of the Korea Contents Association
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• v.18 no.10
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• pp.175-182
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• 2018

The purpose of this study was to examine the influence of factors related to whether or not to take oral examinations for 104,811 economically active population aged 25 to 54 years using the 2016 community health survey data. Multiple logistic regression analysis was performed to oral examination rate the effect general characteristics, socioeconomic and geographical characteristics, and oral health management behavior. The higher who age, the higher who education, have experience scaling, and the better who subjective oral health status, unmet dental needs rate of oral examination was higher. The higher the income level, the lower the oral examination rate. Age of economically active population, marital status, education level, area, income quartile, empolyment, scaling experience, unmet dental needs, there was a significant effect whether oral examination. The purpose of this study is to establish an positive basis for an effective oral examination program to improve accessibility to oral examinations.

• Journal of Convergence for Information Technology
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• v.8 no.1
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• pp.59-67
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• 2018

This study was conducted to identify convergence factors affecting depressive symptoms of postmenopausal women through the theory unpleasant symptom. This study was secondary data analysis form Sixth Korea National Health and Nutrition Examination Survey 2015. Study sample of 1,298 menopausal women to evaluate the factors that would influence depressive symptoms, physiological factors, situational factors, and psychological factors. The results showed that significant variables influencing the depressive symptom were income quartile(${\beta}=-.14$, p<.001), health status(${\beta}=.24$, p<.001), and stress(${\beta}=-.20$, p<.001). The explanation power of this regression model was 14. 1% and it was statistically significant. As a result, to improve their depressive symptoms, the nursing interventions are required for postmenopausal women who have the income, health status, and stress.