• Journal of the Korean Data and Information Science Society
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• v.25 no.2
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• pp.403-410
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• 2014

Binary logistic regression analysis is a statistical technique that explains binary response variable by quantitative or qualitative explanatory variables. In the binary logistic regression model, the probability that the response variable equals, say 1, one of the binary values is to be explained as a transformation of linear combination of explanatory variables. This is one of big barriers that non-statisticians have to overcome in order to understand the model. In this study, an educational tool is developed that explains the need of the binary logistic regression analysis using Excel VBA. More precisely, this tool explains the problems related to modeling the probability of the response variable equal to 1 as a linear combination of explanatory variables and then shows how these problems can be solved through some transformations of the linear combination.

• Journal of the Korean Data and Information Science Society
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• v.22 no.6
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• pp.1137-1143
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• 2011

The purpose of this paper is to analyse the preference for direct marketing according to the characteristics of policyholders and suggest implications for marketing strategies with regard to direct marketing. A marked characteristic of this paper is a good quality of data and the results gained from analysing the data can be trusted very much. Binary logistic regression is employed. A statistically significant preference is shown in the group such as male, a younger generation, a hazardous occupation, the metropolitan area, and the customer of foreign company. The results suggest that promotion for female is needed to revitalize direct marketing. A tight underwriting for a hazardous occupation is also required.

• Journal of Practical Engineering Education
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• v.15 no.3
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• pp.703-709
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• 2023

This study was conducted to investigate the association between hyperuricemia and the risk of hypertension in Korean adult women using data from the 2019 Korea National Health and Nutrition Examination Survey (KNHANES) 8th wave. Study subjects were 2,693 and descriptive analysis was used to investigate the general characteristics of the subjects. The effects of hyperuricemia on the risk of hypertension were evaluated using binomial logistic regression and it was shown that the risk of hypertension in the hyperuricemia group was higher than in the normal group (OR:1.94, p<.001), after adjusting socioeconomic factors (OR:1.81, p=.001) and even after additional adjustment for health behavioral factors, the risk of hypertension was high (OR:1.54, p=.019). Therefore, in order to prevent hypertension in adult women, it is necessary to develop programs and policies to effectively manage their uric acid levels.

• 한국벤처창업학회:학술대회논문집
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• 2021.04a
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• pp.185-195
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• 2021

본 연구는 북한이탈주민의 경제적 자립과 안정적인 정착을 지원하는 하나의 방안으로서 창업을 촉진하기 위한 지원 정책과 제도 개선 방안을 제시할 목적으로 수행하였다. 정부는 현재 생활밀착형 북한이탈주민 정책 추진 기조하에 북한이탈주민의 삶의 질을 높여주는 방향으로 맞춤형 정책을 추진하고 있다. 다만, 창업지원 프로그램은 여전히 소규모로서 지원 분야를 다양화하고 예산을 증액 하는 한편, 지원 체계도 중앙-지방-민간 간 유기적으로 협업이 효율적으로 이루어지도록 개선이 필요하다. 본 연구는 북한이탈주민의 창업의지 결정요인에 대한 실증적 연구를 목적으로 하며, 북한이탈주민들에게 잔존하는 사회주의 가치체계와 이들의 사회적응성 요인을 기존 연구에서 확인되었던 개인의 성격적 특성, 경제적 지지, 자아성취욕구 요인들과 함께 분석모형에 포함하여 실증 연구를 수행하였다. 이를 위해 하나원에서 교육 중인 18세 이상 북한이탈주민 223명을 대상으로 2019년 10월 설문조사를 통해 자료를 수집하였고, 선형회귀분석과 이분형 로지스틱 모형분석을 이용하여 실증분석을 수행하였다. 2개의 분석 모형에서 일관된 결과가 도출됨에 따라 분석결과의 강건성을 확인하였다. 결과적으로 사회주의 가치체계가 약할수록 창업의지에 긍정적인 영향을 미칠것이라는 가설은 지지되었다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.13 no.3
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• pp.96-106
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• 2014

Necessarily traffic policies have been biased in car than pedestrian, so pedestrian's environment is getting worse. Result of this situation our accident rate is high as 36.4%, compared to OECD member countries with average rate of 17.8%(in 2009). Increasing interest for pedestrians environment improvement, and it make an effort to build environment to guarantee walk and safety of pedestrians. Analysis on the binary logistic regression(BLR) was used. The dependent variable is occurring from the road width of less than 9m accident, and independent variable extracted can be obtained from the traffic accident data. Traffic accident on roads having width of less than 9 meters affecting variables is when the driver is straight, when the driver is female, when the pedestrian is walk driveway, and so on. To prevent it, efforts is demanded to protect handicapped, to build safe pedestrians environment using C-ITS and to decrease speed of going straight vehicle on roads having width of less than 9 meters.

• The Korean Journal of Applied Statistics
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• v.32 no.3
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• pp.349-374
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• 2019

A class imbalance problem arises when one class outnumbers the other class by a large proportion in binary data. Studies such as transforming the learning data have been conducted to solve this imbalance problem. In this study, we compared resampling methods among methods to deal with an imbalance in the classification problem. We sought to find a way to more effectively detect the minority class in the data. Through simulation, a total of 20 methods of over-sampling, under-sampling, and combined method of over- and under-sampling were compared. The logistic regression, support vector machine, and random forest models, which are commonly used in classification problems, were used as classifiers. The simulation results showed that the random under sampling (RUS) method had the highest sensitivity with an accuracy over 0.5. The next most sensitive method was an over-sampling adaptive synthetic sampling approach. This revealed that the RUS method was suitable for finding minority class values. The results of applying to some real data sets were similar to those of the simulation.

• The Journal of the Korea Contents Association
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• v.22 no.2
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• pp.379-389
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• 2022

This study analyzed 10,352 married women to find the correlation between marital equality felt by married women and additional childbirth intentions. Frequency analysis and chi-square test analysis were performed to analyze the general characteristics of the investigator, and studies were conducted through binary logistic regression analysis and interaction analysis to analyze the relevance between each variable and additional childbirth. As a result, the 4-point group based on the 0-point group that lowest marital equality had 2.01 times higher willingness to additional birth. And, the 3-point group and the 2-point group were 1.46 times and 1.41 times higher than 0-point group with marital equality and additional childbirth intentions. In addition, intention of additional childbirth was increased when the higher the number of children, if they own a house, and if wives are non-regular or unemployed. This study analyzed the relationship between married women's intention to give birth additionally, focusing on marital equality. It is suggested that specific and reasonable policies at the macro level are required to improve the fertility rate.

• Journal of dental hygiene science
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• v.11 no.4
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• pp.293-297
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• 2011

The purpose of this study was to evaluate recognition of occupation title for dental hygienist in high school students. Total 210 students of one high school completed a self-reported questionnaire on sociodemographic characteristics, dental service utilization and occupation title awareness for health care personnels. Female and science tract students showed higher level of awareness for dental hygienist but showed no differences according to dental service utilization pattern. The study showed association between occupation recognition for dental hygienist and other health technicians. But there were no association between occupation awareness for dental hygienist and dentist, nurse. Gender, occupation recognition for medical laboratory technologists and physical therapist affect occupation recognition for dental hygienist.

• Journal of Digital Convergence
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• v.21 no.1
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• pp.29-34
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• 2023

The purpose of this study was to find out the relationship between the frequency of consumption of sports drinks and energy drinks and aerobic physical activity in the 6-29 year old group in the National Health and Nutrition Examination Survey. The sociodemographic characteristics, aerobic physical activity, and beverage intake of the subjects were calculated using composite sample descriptive statistics, and the mean difference between groups was analyzed by cross-tabulation, χ²-test, and binary logistic regression analysis. High-intensity aerobic activity was analyzed as an increase in the intake frequency of sports drinks(ionic drinks, vitamin drinks) and energy drinks(high-caffeine drinks) (p<0.05). Compared to moderate-intensity aerobic physical activity, high-intensity aerobic physical activity was analyzed as a factor influencing the increase in beverage intake frequency. The purpose of this study was to investigate the relationship between physical activity and beverage consumption, which is a critical issue for promoting health both now and in the future, and to developed an intervention program based on the findings. Through this study, we aimed to gather basic data that can help people live healthy lives, and raise both individual and societal awareness of the importance of making better beverage choices.

• Journal of Digital Convergence
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• v.20 no.4
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• pp.699-704
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• 2022

The purpose of this study is to determine the relating factors of the Budgeting for Korean Medicine health promotion in the Integrated Community Health Promotion Program as of 2020 targeting 226 basic local governments nationwide. Descriptive statistics, Difference tests, and Binary logistic regression analysis were conducted to analyze the factors relating Budgeting for Korean Medicine health promotion in the Integrated Community Health Promotion Program in local communities using regional budgets in 2020. As a result of the analysis, the difference in the Budgeting for Korean Medicine Infertility Treatment Support, Number of Korean Medicine Doctor, Number of Population people over 65 years old, and Aging Population Percentage. And there was a influencing factors, Budgeting for Korean Medicine Infertility Treatment Support, Aging Population Percentage, Whether to join a healthy city, so expected to be used as a reference in organizing policies and business budgets related to Korean Medicine in the future.