• 한국직업건강간호학회지
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• 제29권3호
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• pp.173-183
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• 2020

Purpose: The purpose of this study was to identify factors associated with the mental health-related quality of life (MHQoL) of Korean workers. Methods: This was a cross-sectional study of 192 Korean pay workers who worked in the Daegu and Gyeongbuk Province, Korea. Data were collected from May 15 to July 2, 2019, through selfreported questionnaires. The survey had a total of 87 questions including individual, organizational, and psychosocial factors. MHQoL was measured using short form-36 version 1. Data were divided into four domains of MHQoL and analyzed using a hierarchical linear regression model. Results: From the hierarchical linear regression analysis, when the psychosocial factors were included in the regression model, the R² change in the four domains of MHQoL increased significantly by 19~47%. A common predicting factor associated with the four domains of MHQoL was identified as perceived stress symptoms. Other factors affecting MHQoL showed slight differences in each domain. Conclusion: Based on the study results, it is necessary to monitor the psychosocial symptoms to improve MHQoL of Korean workers. Considering each factor affecting the four areas of MHQoL, workplace-based interventions to improve MHQoL should be provided to workers.

• 한국학교보건학회지
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• 제31권1호
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• pp.1-9
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• 2018

Purpose: This study was conducted to explore the relationship between aggression, self-esteem, and social withdrawal. Methods: This research is a cross-sectional survey. This study used the 5th-year data of the Korean Children & Youth Panel Survey (KCYPS) including 218 middle school students having delinquent behavior. The collected data was analyzed through $x^2$ test, t-test, ANOVA, Pearson's correlation, and hierarchical multiple regression, using SPSS/Win (ver. 23.0). Results: Significant positive correlations were found between aggression and social withdrawal and between aggression and self-esteem. Higher aggression was associated with higher social withdrawal and lower self-esteem. The results of the 2-step regression are as follows. Aggression was negatively correlated with self-esteem, whereas self-esteem was positively correlated with social withdrawals. The hierarchical multiple regression showed that 21% of the variance of aggression was significantly accounted for by self-esteem and social withdrawal. The most significant factor influencing aggression was social withdrawal. Conclusion: These results suggest that earlier screening and intervention programs to increase self-esteem and decrease social withdrawal for early adolescents should be developed to prevent aggression.

• 가정과삶의질연구
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• 제21권2호
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• pp.87-101
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• 2003

The purposes of this study were to analyze causes of wife abuse through married couples as the research subject. The study employed ecological perspective to the study of wife abuse as an multiple dimensional and integrated paradigm combined with isolated theories of other research. The subjects were 369 married couples who live in Gwangju area. Data were analyzed with Cronbach'α, factor analysis, basic statistics, paired-t test, 1-test, ANOVA, Duncan's test, correlation analysis, stepwise multiple regression analysis. and hierarchical regression analysis using the SPSS 10.0 for windows. The major findings were as follows; 1. The psychological abuse score, physical abuse score, and sexual abuse score were lower than median without exception. Hut prevalence rates of wife abuse were considerably serious; 91.9% psychological abuse, 44.4% physical abuse, and 53.7% sexual abuse. 2. The results of the hierarchical regression analysis indicated that the marital conflict had the strongest impact on wife abuse. And the attitude toward wife abuse of husband, hostility of husband, exposure experience of domestic violence during a growth period of husband, perception toward social violence of husband, exposure experience of domestic violence during a growth period of wife, drinking problem of husband, and interpersonal relationships stress of husband had influenced on wife abuse. These variables accounted for 49.5% of variance of wife abuse behaviors. As the result of the study, it concludes that the ecological systemic approach on the cause of wife abuse is useful as a theoretical instrument. Suggestions and implications are made for further research and practical application.

• 한국직업건강간호학회지
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• 제24권2호
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• pp.94-102
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• 2015

Purpose: The purpose of this study was to investigate Korean blue-collar workers' Health-related Quality of Life (HRQoL) and influencing factors in Korean blue-collar workers. Methods: Participants in this study were 109 Korean blue-collar workers. The survey included health-related, work-related, and psycho-social factors. SF-36 was used to measure HRQoL. The data were analyzed using Pearson's correlation, and hierarchical multiple regression analysis. Results: In the hierarchical linear regression model, when subjects' psycho-social variables were included in the regression model, $R^2$ change was statistically significant. The significant predictors for HRQoL were education level (${\beta}=.26$, p=.023), depression (${\beta}=-.38$, p<.001), and self-efficacy (${\beta}=.23$, p<.001). Conclusion: The results of this study indicate that health care providers must have priority to consider psycho-social variables, especially depression and self-efficacy to improve HRQoL in Korean blue-collar workers.

• Journal of the Korean Data and Information Science Society
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• 제26권4호
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• pp.957-970
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• 2015

이 연구는 일반선형모형에 이원변량분석과 위계적회귀분석을 적용하여 한국남자프로농구 경기기록 (2014-2015 정규리그 270경기)을 분석하였다. 이원변량분석 결과, 3점슛시도에서 승패와 홈원정 집단간에 상호작용효과가 통계적으로 유의하게 나타났다. 이 외에 변인들 (2점슛시도, 어시스트, 속공, 선수교체)은 모두 승패 집단간에는 통계적으로 유의한 차이가 나타났고, 홈원정경기 간에는 유의한 차이가 없게 나타났다. 위계적회귀분석 결과, 어시스트는 3점슛시도가 총득점에 미치는 영향에 대해 통계적으로 유의한 조절변수로 나타났으며, 속공은 어시스트가 2점슛성공에 미치는 영향에 대해 유의한 조절변수로 나타났다. 반면 어시스트는 2점슛시도가 총득점에 미치는 영향에, 그리고 속공은 어시스트가 3점슛성공에 미치는 영향에 유의한 조절효과가 없는 것으로 나타났다. 마지막으로 선수교체는 2점슛시도, 3점슛시도 그리고 어시스트가 총득점에 미치는 영향에 통계적으로 유의한 조절효과가 없는 것으로 나타났다.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제15권7호
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• pp.469-477
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• 2009

제한된 용량의 배터리로 동작해야 하는 모바일 시스템에서는 소프트웨어 설계시 성능뿐만 아니라 전력소모도 고려해야 한다. 따라서 소프트웨어의 실행 중에 전력소모를 정확하게 예측할 수 있으면 전력과 성능을 고려한 효율적인 소프트웨어의 설계가 가능해진다. 본 논문에서는 모바일 프로세서의 전력소모 예측을 위해 정량적으로 프로세서의 동작을 분석하고 모델링 하는 통계적인 분석 방법을 제안한다. 제안된 방식은 다양한 벤치마크 프로그램들을 실행하여 프로세서의 성능 모니터링 이벤트들과 전력소모 데이터를 수집한 후 계층적 클러스터링(hierarchical clustering) 분석 등을 적용하여 서로 중복되지 않으면서 전력소모에 크게 기여하는 대표적인 성능 모니터링 이벤트들을 추출한다. 전력 예측 모델은 선택된 성능 모니터링 이벤트들이 독립변수가 되고 전력소모가 종속변수가 되는 회귀분석(regression analysis)을 수행하여 개발한다. 전력 예측 모델은 Intel XScale 아키텍처 기반의 PXA320 모바일 프로세서에 적용하여 평균 4% 이내의 에러율로 전력소모를 예측할 수 있음을 보인다.

• 한국치위생학회지
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• 제12권5호
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• pp.973-985
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• 2012

Objectives : The aim of this study is to investigate the possible impact factors on adults' self-reports of dry mouth and to develop strategies to improve oral health education policy. Methods : This study was conducted on a total of 622 self-administered questionnaires adult above 20 and under 65 years of age living in Seoul and Gyeonggi provinces. The final participants consisted of 443 adults without chronic illness, taking medications and wearing dentures. The Hierarchical Multiple Regression model with three stages was used to assess the association for exposure of interest, such as socio-demographics, health-related behavior, mental health and self-reported of dry mouth. Results : The participants reported mean score of dry mouth($6.32{\pm}4.47$), of which 191 were male($6.81{\pm}4.56$) and 252 were female($5.94{\pm}4.37$). Hierarchical Multiple Regression revealed that the score of dry mouth was shown to be significantly higher for the following people: Males, who were employed, unemployed, negative self-perceived general health, perceived stress, and participants who had no experience awareness of distress in two weeks. The explanatory power was 21.9%. The most powerful impact factor regarding to employment was shown to be negatively associated to dry mouth, and self-perceived general health, experiencing awareness of distressful in two weeks was also important factors. Conclusions : Based on these results in order to develop oral health education policy strategies for the prevention and management of dry mouth, there need to be considered for the employee.

• 디지털융복합연구
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• 제13권9호
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• pp.479-487
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• 2015

본 연구는 20대 여성의 외모만족도, 외모지향성, 외모평가 및 자아존중감을 파악하고 각 요인들이 비만스트레스에 미치는 영향을 알아보고자 시행되었다. 분석결과 20대 여성은 실제 BMI(Body Mass Index)보다 주관적 체형을 더 크게 인식하고 있었다. 대상자의 제 변수간의 상관관계를 살펴본 결과, 외모지향성(r=.386, p=<.001), 자아존중감(r=.324, p=<.001)으로 정적상관성을, 외모평가(r=-453, p=<.001), 외모만족도(r=-.560, p=<.001)는 부적상관성을 보였다. 위계적 회귀방법으로 비만스트레스에 영향을 미치는 요인을 분석한 결과, 1단계 모형에서 외모만족도 31.3%, 2단계 모형에서 외모지향성, 외모평가, 외모만족도가 45.3%, 3단계 모형에서 주관적 체형, BMI 및 제 변수가 54.7%를 설명하였다. 분석결과를 토대로 20대 여성에게 실제 정상BMI를 가진 체형이 가장 이상적인 체형임을 인식하는 교육과 삶의 지표를 외형보다 내면에 둘 수 있도록 다양한 프로그램을 마련하는 것이 20대 여성의 비만스트레스를 다소나마 줄여 줄 수 있을 것으로 사료된다.

• 한국아동복지학
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• 제26호
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• pp.87-111
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• 2008

본 연구는 중학생의 또래폭력피해 실태를 살펴보고, 우리나라에서 지금까지 진행되지 않은 또래폭력에 영향을 미치는 학교분위기의 다양한 요인을 파악하고 그 상대적인 영향력을 밝히는 것이다. 연구의 목적을 위해 서울지역에 있는 11개의 중학교를 편의표집 하여 선정된 중학생들이며 최종적으로 1,204부의 설문조사지를 분석하였다. 분석방법으로 빈도분석, 기술통계, 피어슨의 상관분석, 위계적 회귀분석을 사용하였다. 분석결과, 중학생의 또래폭력피해 행위 중 언어폭력의 피해행위가 상대적으로 높게 나타났다. 2단계로 구분하여 위계적 회귀분석을 실시하였다. 1단계 모델보다 2단계 모델에서는 설명 변량이 19.6% 증가하였다. 또래폭력 피해 행위에 교사와 학생간의 상호작용(${\beta}=.130$), 학교건물의 유지보수(${\beta}=.067$), 교내환경의 안전성(${\beta}=.331$)의 변수들과 통제변수 중 성별과 경제력이 유의미한 변수였으며 전체모델의 23.0%를 설명하고 있었다. 이와 같은 연구결과에 근거하여 학교분위기를 개선시키기 위한 실천적, 정책적 제언들을 제시하였다.

• International journal of advanced smart convergence
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• 제8권3호
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• pp.151-160
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• 2019

Korea has the highest suicide rate among the OECD countries, and the suicide rate is highest among young adults in their 20s, most of whom are university students. Therefore, suicide among Korean university students is a public health issue that is of interest to us. The purpose of this study is to investigate the factors affecting the suicidal ideation of university students in Korea, and to use them as a basis to establish effective intervention for university suicide prevention through it. This was a cross-sectional descriptive study using convenience sampling method. The participants were 344 university students at universities in S and G cities. Data were collected with a structured questionnaire and analyzed using descriptive analysis, t-test, ANOVA, Pearson correlation coefficients, and hierarchical regression analysis using with the SPSS/Win 23.0 program. There was a significant correlation between depression (r=.45, p<.001), drinking alcohol (r=.14, p=.008), social support (r=-.26, p<.001), quality of life (r=-.46, p<.001), and suicidal ideation. In the first step of hierarchical regression analysis, satisfaction of school life (${\beta}=.198$, p<.001) was the significant factor influencing the suicidal ideation. Explanatory power was 25.2%. In the second step of the hierarchical regression analysis, absence of parents (${\beta}=-.095$, p=.044), depression (${\beta}=.247$, p<.001), quality of life (${\beta}=-.280$, p<.001), and explanatory power were increased to 42.0%. The results of the study indicate the need to actively identify the group of university students in their 20s with high risk of suicide through continuous evaluation of depression, and to improve the quality of life as a method of preventing suicide. In addition, the effect of absence of parents on the suicidal ideation among Korean university students suggests that parental support may play an important role in suicide prevention.