• Korean Journal of Adult Nursing
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• v.27 no.5
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• pp.583-593
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• 2015

Purpose: This study was conducted to identify factors influencing depression in the elderly male in Korea. Methods: The initial data were collected from the $5^{th}$ Korea national health and nutrition examination survey (KNHANES-V). The data of 1,210 adults with the age over 65 years were finally analysed using t or ${\chi}^2$ test, stepwise multiple logistic regression. Research variables utilized in this study were 29 factors including demographic and health-related characteristics, physical and economic activities, and life habits. Results: Seven factors were found to be associated with depression in the elderly male including stress level, uncontrolled drinking experience, physical discomfort days in recent two weeks, the level of activities in daily life, diabetes mellitus, economic activity status, and sleeping hours. Conclusion: These results can be used in developing appropriate depression prevention program considering the characteristics of the elderly male.

• Korean Journal of Adult Nursing
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• v.21 no.4
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• pp.391-402
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• 2009

Purpose: This study was conducted to identify predictors of the stage of change for smoking cessation of male university students on the basis of the Transtheoretical model (TTM). Methods: The 388 current smokers or exsmokers who agreed to participate were recruited from three areas in Korea from August 2 to September 5, 2006. Data was analyzed using a SPSS program for descriptive statistics, ANOVA, and multiple logistic regression. Results: Most subjects (76.8%) were current smokers. According to stages of change, there were statistically significant differences in self efficacy, smoking temptation, decisional balance (cons, pros), and processes of change. The predictors of transition from contemplation to preparation were behavioral and experiential processes. The predictors of transition from preparation to action were pros of smoking and experiential process. The predictors of transition from action to maintenance were cons of smoking and behavioral process. Conclusion: Specific nursing interventions based on stages of change need to be developed for smoking cessation of male university students.

• Journal of the Korean Operations Research and Management Science Society
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• v.30 no.1
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• pp.55-74
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• 2005

Bankruptcy prediction has drawn a lot of research interests in previous literature, and recent studies have shown that machine learning techniques achieved better performance than traditional statistical ones. This paper employs a relatively new machine learning technique, support vector machines (SVMs). to bankruptcy prediction problem in an attempt to suggest a new model with better explanatory power and stability. To serve this purpose, we use grid search technique using 5-fold cross-validation to find out the optimal values of the parameters of kernel function of SVM. In addition, to evaluate the prediction accuracy of SVM. we compare its performance with multiple discriminant analysis (MDA), logistic regression analysis (Logit), and three-layer fully connected back-propagation neural networks (BPNs). The experiment results show that SVM outperforms the other methods.

• Journal of Korean society of Dental Hygiene
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• v.16 no.5
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• pp.669-676
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• 2016

Objectives: The purpose of the study was to investigate the related factors of scaling experience of multi-cultural adolescents in Korea. Methods: The subjects were 698 multi-cultural adolescents from web-based survey of the 11th(2015) Korean Youth Risk Behavior. Multi-cultural adolescents are defined as the children of marriage migrant women. The study instruments included demographical characteristics of the subjects, oral health behaviors, daily tooth brushing times, health behaviors, and experience of smoking and alcohol consumption. Data were analyzed using PASW statistics 18.0. Results: The experience rate of scaling was 18.8%. Multiple logistic regression analysis revealed that experience of scaling were related with experiences of sealant and fruit consumption. Conclusions: It is very important to provide the continuing oral health prevention program for the adolescents and investigate the cost-benefit effectiveness of oral health care program.

• The Korean Journal of Health Service Management
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• v.8 no.2
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• pp.149-160
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• 2014

The suicide rate in the elderly is continually increasing. Effective suicide prevention requires that factors affecting suicidal ideation are specifically identified and personalized intervention programs are developed. This study aimed to identify the influencing factors of suicidal ideation in Korean elderly. The data of the 2012 Korean National Health & Nutrition Examination Survey was analyzed by using the SPSS program. Frequency, percentile, Chi-square test, multiple logistic regression were used. The influencing factors of suicidal ideation were education, income, exercise, perceived stress and depression. The Odds Ratio of the depression was 5.68 and the Odds Ratio of the perceived stress was 3.45. This study suggested that elderly suicidal prevention programs should be developed in preventing and reducing stress and depression.

• Korean Journal of Child Studies
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• v.37 no.1
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• pp.37-48
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• 2016

Objective: To prevent adolescent drinking and smoking, this study proposed a strategy based on the ecological perspective. Methods: The study applied multilevel moderated logistic regression analysis on nationally representative individual-level (2,046 9th grade adolescents) and neighborhood-level (92 geographic areas) data. Results: There was a positive association between risky neighborhood environments (e.g., rate of smoking, drinking, and presence of saloon/bars accommodation) and rates of adolescent drinking and smoking. Furthermore, the interplay between risky neighborhood environments and school adjustment pointed to a possible protective effect of a high level of school adjustment in predicting smoking and drinking among adolescents. Conclusion: Findings highlighted the importance of considering multiple neighborhood social contexts surrounding adolescents to understand their risky behavior. Furthermore, positive intervention strategies that focus on adolescents' positive development within the school domain may act to protect adolescents from harmful neighborhood environments.

• Research in Community and Public Health Nursing
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• v.23 no.4
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• pp.358-365
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• 2012

Purpose: The purpose of this study was to investigate factors associated with the intention to quit smoking in community-dwelling elderly smokers. Methods: From the database of the Fourth Korean National Health and Nutrition Examination Survey (KNHANES-IV), the researchers selected 448 elderly smokers over the age of 65. Data were analyzed with the $x^2$ test and multiple logistic regression using the SPSS/WIN 18.0 program. Results: Of the respondents, 45.5% intended to quit. The factors associated with the intention to quit were relative youth, having limit of activity day living and having past attempts to quit. Conclusion: Population-based smoking cessation programs, especially those targeted at the elderly, should take these predictors into consideration in the design of interventions.

• Journal of Family Resource Management and Policy Review
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• v.7 no.2
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• pp.131-144
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• 2003

The purpose of this study was to examine the overspending in Korean urban households. Data for this study were from the 2001 Household Income and Expenditure Survey and consisted of a sample of 3,250 households. The mean of the spending to income ratio was 1.02 and 37% of the households spent more than 100% of their taken-home income. Multiple logistic regression was used to investigate the determinants of overspending. Education, job, household type, the number of earners, the number of children, life cycle, location, and home ownership were significant variables which influence the overspending. The results of this study is useful for financial planners and counselors to make a guide line for overspenders.

• International Journal of Human Ecology
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• v.17 no.1
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• pp.27-37
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• 2016

This study was to understand associated factors with frequent exposure to Internet pornography among Korean adolescents. We used data (N = 45,783) from the 2012 Korea Youth Risk Behavior Web-based Survey to examine demographics, family environmental variables, Internet use time, mental health indicators, sexual behavior, and delinquency among Korean adolescents identified as frequent users of Internet pornography. Multiple logistic regression analysis revealed that frequent users of Internet pornography were more likely to be older males with differences in living arrangements and perceived economic status of the family. They were heavy Internet users with mental health issues, such as a higher likelihood of sadness, suicidal ideation, suicide attempts, high stress, and a lower likelihood of feeling happiness. Their higher probability of exploratory (OR =1.79-4.60), and high-risk sexual behavior (OR = 2.20-7.46), and other delinquencies (OR = 1.74-7.68) requires more attention from public health professionals.

• Journal of Families and Better Life
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• v.22 no.5
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• pp.283-292
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• 2004

The purpose of this study was to examine the determinants of expenditure adequacy of eldery households. Data for this study were collected from 2002 House Income and Expenditure Survey of Korea National Statistical Office, which is consisting of a sample of 918 eldery households. Expenditure adequacy was investigated by the Spending to Income ratio and Expenditure to Minimum standard of living ratio. The results showed that 48% of households spent more than 100% of their taken-home income or less than the minimum standard of living. Multiple logistic regression was used to investigate the determinants of expenditure adequacy. Gender, age, education, job status, family size, and level of income were significant determinants of spending to income ratio and Expenditure to Minimum standard of living ratio. Family size had negative effect on expenditure adequacy, householder's job status and the level of income had positive relationship with it.