• Korean Journal of Radiology
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• v.22 no.5
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• pp.697-705
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• 2021

Objective: To investigate the feasibility and the accuracy of the coronary CT angiography (CCTA)-derived Registry of Crossboss and Hybrid procedures in France, the Netherlands, Belgium and United Kingdom (RECHARGE) score (RECHARGECCTA) for the prediction of procedural success and 30-minutes guidewire crossing in percutaneous coronary intervention (PCI) for chronic total occlusion (CTO). Materials and Methods: One hundred and twenty-four consecutive patients (mean age, 54 years; 79% male) with 131 CTO lesions who underwent CCTA before catheter angiography (CA) with CTO-PCI were retrospectively enrolled in this study. The RECHARGECCTA scores were calculated and compared with RECHARGECA and other CTA-based prediction scores, including Multicenter CTO Registry of Japan (J-CTO), CT Registry of CTO Revascularisation (CT-RECTOR), and Korean Multicenter CTO CT Registry (KCCT) scores. Results: The procedural success rate of the CTO-PCI procedures was 72%, and 61% of cases achieved the 30-minutes wire crossing. No significant difference was observed between the RECHARGECCTA score and the RECHARGECA score for procedural success (median 2 vs. median 2, p = 0.084). However, the RECHARGECCTA score was higher than the RECHARGECA score for the 30-minutes wire crossing (median 2 vs. median 1.5, p = 0.001). The areas under the curve (AUCs) of the RECHARGECCTA and RECHARGECA scores for predicting procedural success showed no statistical significance (0.718 vs. 0.757, p = 0.655). The sensitivity, specificity, positive predictive value, and the negative predictive value of the RECHARGECCTA scores of ≤ 2 for predictive procedural success were 78%, 60%, 43%, and 87%, respectively. The RECHARGECCTA score showed a discriminative performance that was comparable to those of the other CTA-based prediction scores (AUC = 0.718 vs. 0.665-0.717, all p > 0.05). Conclusion: The non-invasive RECHARGECCTA score performs better than the invasive determination for the prediction of the 30-minutes wire crossing of CTO-PCI. However, the RECHARGECCTA score may not replace other CTA-based prediction scores for predicting CTO-PCI success.

• KDI Journal of Economic Policy
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• v.39 no.1
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• pp.1-18
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• 2017

This paper empirically studies the effect of public procurement on small and medium-sized enterprises (SMEs) in the Republic of Korea using firm-level data. Public procurement, the purchase of goods and services from private firms by the public sector, is regarded as an important policy measure for providing support to firms, particularly SMEs. This study uses establishment-level panel data of the mining and manufacturing sectors from the Korean National Bureau of Statistics (Statistics Korea) and procurement history from the Korean Public Procurement Service to empirically estimate the effects of public procurement on firms' productivity (total factor productivity) and survivability. Using a propensity score matching estimation method, we find that participating firms showed higher productivity than non-participating ones in the control group only for the year of participation, that is, 2009. After two years, in 2011, they exhibited significantly lower productivity. In contrast, establishments that participated in public procurement for SMEs in 2009 were more likely to survive than those that did not do so in 2011. These results can be interpreted as the negative consequences of government intervention. The market's efficiency enhancement is hindered if underserving companies survive owing to government intervention but fail to improve efficiency.

• The Korean Journal of Emergency Medical Services
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• v.20 no.3
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• pp.95-105
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• 2016

Purpose: The purpose of the study was to examine the career obstacle factors and career identity according to career choice type among paramedic students. Methods: A self-reported questionnaire was completed by 234 paramedic students in C area from August 25 to September 3, 2015. The questionnaire consisted of general characteristics of the subjects, career obstacle factors, career identity, and types of career choice. The data were analyzed by t test, ANOVA, post hoc $Scheff{\acute{e}}$ test, Pearson's correlation analysis, and multiple regression analysis using SPSS v. 20.0. Results: Career obstacle factors and career identity of paramedic students had significant differences on motivation of university choice, major satisfaction, and job preference. A stable type of career choice showed a significantly lower score for career obstacle factors and a higher score for career identity. Career identity had a strongly positive relationship with major satisfaction and had a negative relationship with career obstacle factors. Logistic regression analysis revealed that the main variables affecting career identity were types of career choice, motivation of university choice, major satisfaction, and career obstacle factors. The explanatory power was 58.0%. Conclusion: The development of a career integrity enhancement program can solve the career obstacle factors for paramedic students.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.5
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• pp.3281-3288
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• 2013

Background: Breast cancer is the leading cause of cancer-related deaths in women. Despite being associated with high morbidity and mortality, breast cancer is a disease that can be diagnosed and treated early. Materials and Methods: In this cross-sectional study of 321 women, data were collected by Questionnaire, Breast Cancer Risk Assessment Form and Champion's Health Belief Model Scale. Mann-Whitney U, Kruskal-Wallis, Chisquared tests and logistic regression were used in the statistical analysis. Results: It was found that only 2.2% of women have high and very high risk levels of breast cancer risk. There is a positive correlation between early diagnosis techniques and Health Belief Model Sub-Dimension scores which are sensibility, health motivation, BSE (Breast self-examination) self-efficient perception and negative correlation between mammography barrier score and BSE barrier score (p 0.05). When factors for not having BSE were examined, it was determined that the women who do not have information about breast cancer and the women who smoke have a higher risk of not having BSE. Conclusions: It is important to determine health beliefs and breast cancer risk levels of women to increase the frequency of early diagnosis. Women's health beliefs are thought to be a good guide for planning health education programs for nurses working in this area.

• Journal of the Korean Society of School Health
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• v.22 no.2
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• pp.25-36
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• 2009

Purpose: The purpose of this study was to estimate income-related health inequalities among adolescent population across regions in Korea. Methods: Data of 8,456 adolescents from 1998, 2001, 2005, 2007 Korean Health and Nutrition Examination Survey were used for the analysis. True health status was proxied by self-rated health and overweight status. Per capita income was computed from household monthly average income adjusted by consumer price with base year 2005. Adolescent health inequalities were estimated by Concentration Index (CI) across income and space. Results: Ill health score was related with age (p<0.0001), gender (p=0.0155) and income (p<0.0001). Negative relationship between income and ill-health indicated that higher income group tended to enjoy better health and less overweight. These evidences suggested ill health were accumulated on the economically disadvantaged adolescents. The size of health inequalities (ill-health score) were estimated as CI=-0.057 and CI=-0.030 across income groups and regions, respectively. Comparable measures of within region health disparities were also observed. Conclusion: Since health disparity among adolescent population was small compared to adult population, lessening adolescent health inequality could be a helpful way of mitigating health disparities in later stage. Considering life stage of adolescents, school system and local communities could play important roles toward adolescent health distribution. Although health disparity between regions existed, health disparity within a region should not be neglected.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.41 no.3
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• pp.1-10
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• 2018

The purpose of this study is to improve effectiveness of Korea's Official Development Assistance (ODA) provided to developing countries. To do this, we analyze the efficiency of ODA provided to 38 recipient countries by Korea through data envelope analysis method. The effects of four factors including population, GDP, economic decline and poverty, and external intervention on efficiency are also investigated by utilizing tobit regression analysis. As a result of the DEA efficiency analysis, it is found that the average efficiency score of the total is about 59%. By region, the average efficiency score of Asia, Africa, Central and South America, and the East and CIS (Commonwealth of Independent States) are about 42%, 68%, 70%, and 74%, respectively. It indicates that the Asian countries are inefficient compared to countries of the other regions. It is also found that factors of population, GDP, economic decline and poverty, and external intervention have statistically significant effects on efficiency at 0.01 significance level. In the case of the population, the higher the population of the recipient country, the more negative (-) effect is on the efficiency. The other factors such as GDP, economic decline and poverty, and external intervention have positive effects on the efficiency.

• Journal of the East Asian Society of Dietary Life
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• v.10 no.2
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• pp.142-152
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• 2000

This study was conducted to investigate the life style and dietary factors in high-risk of vascular diseases among workers residing in Kyungbook province. The survey was carried out on March and April, 1997 The subjects of this study consisted of fifty men aged over 30 years who were diagnosed as hypercholesterolemia(＞240mg/$m\ell$) or hypertension(＞160/95mmHg). In contrast, fifty healthy men were participated in this study as a control group. General environmental factors, nutrition knowledge and food behavior were investigated by questionaires through direct interviews with the subjects. Alcohol intake and smoking level of the subjects tended to be higher than those of the control, but not significantly different. Nutrition knowledge and food behavior scores of high-risk group were significantly lower than those of the control group. The smoking amount of subjects was negatively correlated with blood glucose and BMI. Alcohol consumption of subjects appeared to have a positive correlation with systolic blood pressure and BMI. The relationship of food behavior score with BMI and blood glucose were negatively correlated. Nutrition knowledge score showed a negative correlation with total cholesterol, blood glucose level, BMI and systolic blood pressure. These results suggest that efficient nutrition education programs need to be developed to prevent the cardiovascular diseases of workers.

• Journal of Korean Academy of Nursing Administration
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• v.17 no.1
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• pp.14-21
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• 2011

Purpose: This study was conducted to investigate gender stereotype and job satisfaction, and to identify the relationship between gender stereotype and job satisfaction in male nurses. Method: The participants were 165 male nurses who worked in the Seoul, Gyeonggi and Daejeon areas. Data were collected from August 31th, 2009 to October 15th, 2009. A survey questionnaire was used to measure demographics, gender-role identity, gender stereotype and job satisfaction. Data were analyzed using SPSS/Win 12.0 version. Results: The mean score for gender stereotype was 2.81 points out of a possible 5. There were statistically significant differences in gender stereotype by general characteristics such as career in the current department (F=5.249, p=.007) and position (t=2.547, p=.012). The scores for gender stereotype were significantly higher in the group with less than five years in the current department and in the staff nurse group. The mean score for job satisfaction was 2.95 out of a possible 5. There was a significant negative correlation between gender stereotype and job satisfaction. Conclusions: Development of educational programs is required to improve the gender stereotype.

• Women's Health Nursing
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• v.12 no.3
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• pp.231-239
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• 2006

Purpose: This study was done to investigate differences in maternal role confidence and parenting stress according to the infant's feeding method. Method: The participants were 257 mothers of infants aged 5$\sim$7 months. 145 breast-feeding mothers and 112 bottle-feeding mothers participated. The Maternal Role Confidence Scale and Parenting Stress Index(PSI) were used. Results: The score of maternal role confidence of breast-feeding mothers (3.28) was significantly higher than that of bottle-feeding mothers(2.84). In addition, the parenting stress level of breast-feeding mothers(1.80) was lower than that of bottle-feeding mothers(2.97). However, the scores of maternal role confidence and the parenting stress level were not different according to the mother's and infant's personality characteristics. There was a significant negative correlation between the score of maternal role confidence and parenting stress levels(r=-.55, p<.001). Conclusion: Breast feeding mothers had more confidence of their maternal role, and a lower parenting stress level. Therefore, nurses must encourage infant mothers to breast feed since it is the best option for mothers as well as infants.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.30 no.1
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• pp.17-25
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• 2019

Objectives: We aimed to compare the differences in parenting stress, parenting attitudes, and parents' mental health between different adult attachment styles. Methods: Forty-four parents who completed a parental education program were enrolled in our study. They completed the Korean version of the Experience of Close Relationship Revised, Korean-Parenting Stress Index-Short Form, Maternal Behavior Research Instrument, and Symptom Checklist-90-Revised. Results: The avoidant attachment score positively correlated with parenting stress. The anxious attachment score showed a positive relationship with parenting stress, hostile parenting attitude, and psychopathology, but a negative association with an affectionate parenting attitude. The secure attachment group exhibited a more autonomous, affectionate parenting style and a less hostile parenting attitude and less parenting stress than the insecure attachment group. Dismissing-avoidant attachment parents reported significantly higher parenting stress scores than secure attachment parents. Preoccupied and fearful-avoidant attachment parents displayed a more hostile parenting style than secure attachment parents. Dismissing-avoidant and preoccupied parents reported a less affectionate parenting attitude than secure attachment parents. Conclusion: There were differences in parenting stress, parenting attitudes, and parents' mental health depending on the adult attachment style. More specific education and interventions based on parental attachment type are necessary for parents.