• 제목/요약/키워드: Stepwise Multiple Regression model

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간경변증환자의 환자역할행위에 관한 연구 (A Study on Liver Cirrhosis Patients행 Sick Role Behavior)

  • 김옥수
    • 대한간호학회지
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    • 제15권1호
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    • pp.30-43
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    • 1985
  • Liver cirrhosis is the common cause of death in Korea today. But, if liver cirrhosis Patients were treated in the early stage of the disease Process, they can have a chance to carry their daily lives with prescribed medical and nursing regimens. Each patient has different health beliefs that there is a different Sick Role Behavior in the process of treatment. In order to increase and control the desired patient's Sick Role Behavior, it is important for nurses to understand the health beliefs influencing Sick Role Behavior. The purpose of this study was to determine factors influencing Sick Role Behavior and provide objective and scientific data to health education, treatment and nursing care. The subjects for this study were 80 Liver Cirrhosis patients selected from in and out patients of the medical department of four University Hospitals in Seoul, Won Joo and Mok Po city. Data was collected from Sep. 18, to Oct. 15, 1984. The measurement tool was the questionaire that developed by the investigator from the literature review based on Health Belief Model. The data Collection was done by interview. Analysis of data was done by use Mean, S.D., ANOVA, Pearson Correlation Coefficient and Stepwise Multiple Regression. The result of study were as follows: 1. The significant influencing variables on the Liver Cirrhosis Patient's Sick Role Behavior in general characteristics were Sex, Marital Status, Educational levels, Family's income and Duration after diagnosis. 2. Between the Sick Role Behavior and Health Belief Model, a) The first hypothesis that the stronger degree of Health Motivation, the higher degree of Liver Cirrhosis Patient's Sick Hole Behavior was supported (r=0.7892, p=0.0000). b) The second hypothesis that the higher degree of perceived susceptibility, the higher degree of Liver Cirrhosis Patients' Sick Role Behavior was supported (r=0.6383, p=0.0000) c) The third hypothesis that the higher degree of perceived severity, the higher degree of Liver Cirrhosis Patients' Sick Role Behavior was supported (r=0.5869, p=0.0000). d) The fourth hypothesis that the higher degree of perceived benefit, the higher degree of Liver Cirrhosis patient's Sick Role Behavior was supported (r=0.7535, p=0.0000). e) The fifth hypothesis that the lower degree of perceived barrier, the higher degree of Liver Cirrhosis Patient's Sick Role Behavior was supported(r=-9.7709, p=0.0000) f) The sixth hypothesis that the higher degree of knowledge in Disease, the higher degree of Liver Cirrhosis patients'lck Role Behavior was supported (r=0.7538, p=0.0000), g) In the correlation among variables, it was found positive correlation except that perceived barrier was negatively correlated. In the Stepwise Multiple Regression and Independent Variables, the factor“Health Motivation”could account for Sick Role Behavior in 62.28% of the Sample (F=128. 786, p<0.01). When the factor“perceived barrier”is added to this, it account for 70.38% of Sick Role Behavior (F=93.479, p <0.01) and the factor“knowledge in disease”is also included, it account for 74.78% of Sick Role Behavior (F=75.131, p <0.01). Finally, when the factor“perceived susceptibility”is included, it account for 75.03% of Sick Role Behavior (F=56.329, p <0.01).

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Prediction of Arsenic Uptake by Rice in the Paddy Fields Vulnerable to Arsenic Contamination

  • Lee, Seul;Kang, Dae-Won;Kim, Hyuck-Soo;Yoo, Ji-Hyock;Park, Sang-Won;Oh, Kyeong-Seok;Cho, Il Kyu;Moon, Byeong-Churl;Kim, Won-Il
    • 한국토양비료학회지
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    • 제50권2호
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    • pp.115-126
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    • 2017
  • There is an increasing concern over arsenic (As) contamination in rice. This study was conducted to develope a prediction model for As uptake by rice based on the physico-chemical properties of soil. Soil and brown rice samples were collected from 46 sites in paddy fields near three different areas of closed mines and industrial complexes. Total As concentration, soil pH, Al oxide, available phosphorus (avail-P), organic matter (OM) content, and clay content in the soil samples were determined. Also, 1.0 N HCl, 1.0 M $NH_4NO_3$, 0.01 M $Ca(NO_3)_2$, and Mehlich 3 extractable-As in the soils were measured as phytoavailable As concentration in soil. Total As concentration in brown rice samples was also determined. Relationships among As concentrations in brown rice, total As concentrations in soils, and selected soil properties were as follows: As concentration in brown rice was negatively correlated with soil pH value, where as it was positively correlated with Al oxide concentration, avail-P concentration, and OM content in soil. In addition, the concentration of As in brown rice was statistically correlated only with 1.0 N HCl-extractable As in soil. Also, using multiple stepwise regression analysis, a modelling equation was created to predict As concentration in brown rice as affected by selected soil properties including soil As concentration. Prediction of As uptake by rice was delineated by the model [As in brown rice = 0.352 + $0.00109^*$ HCl extractable As in soil + $0.00002^*$ Al oxide + $0.0097^*$ OM + $0.00061^*$ avail-P - $0.0332^*$ soil pH] ($R=0.714^{***}$). The concentrations of As in brown rice estimated by the modelling equation were statistically acceptable because normalized mean error (NME) and normalized root mean square error (NRMSE) values were -0.055 and 0.2229, respectively, when compared with measured As concentration in the plant.

간호대학생의 간호사이미지, 전문직자아개념이 진로탐색행동에 미치는 영향 (Effects of Nursing Students' Nurse Image and Professional Self Concept on Career Search Behavior)

  • 김희연;김보미
    • 사물인터넷융복합논문지
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    • 제7권3호
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    • pp.15-22
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    • 2021
  • 본 연구의 목적은 간호대학생의 간호사이미지, 전문직자아개념이 진로탐색행동에 미치는 영향요인을 파악하기 위함이다. 연구대상은 Y지역에 재학 중인 간호학과 2, 3, 4학년 학생 153명이며 구조화 된 설문지를 사용하여 2020년 7월 1일부터 8월 31일까지 자료를 수집하였다. 측정도구는 간호사이미지, 전문직자아개념, 진로탐색행동으로 구성되었다. 자료처리는 SPSS 22.0 프로그램을 활용하였으며 일반적인 특성은 t-test, ANOVA, 사후검정은 Scheffe's test, 평균평점, 표준편차, Pearson's correlation, stepwise multiple regression으로 분석하였다. 간호대학생의 간호사이미지, 전문직자아개념, 진로탐색행동 모두 유의한 양의 상관이 있는 것으로 나타났으며, 가장 영향력이 큰 변수는 전문직 자아개념이다. 이 변수들의 총 설명력은 모델 1에 비해서 모델 2는 2%가 증가된 25% 설명력을 보였다. 이를 바탕으로 간호사이미지와 전문직자아개념을 향상시킬 수 있는 교육과 그와 연계된 진로탐색행동 프로그램 개발이 필요하다.

조직 블로그 사용에 미치는 영향요인 분석 : 조직 블로그 유형의 관점에서 (The Factors Affecting on the Usage of Organizational Blog : The Perspective of the Organizational Blog Type)

  • 김인재;지홍구
    • Journal of Information Technology Applications and Management
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    • 제18권2호
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    • pp.61-89
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    • 2011
  • Blog is a new global phenomenon, but many research papers about organizational blog have not been shown. In this study the influencing factors of the organizational blog usage are empirically investigated, and several guidelines are suggested to IT professionals who involves the design and implementation of the organizational blog. The research model consists of seven independent variables, one dependent variable, and two moderating variables. The following variables are established as the independent variables; information, interface, service, communication, enjoy, performance expectation, and social influence. Two dimensions such as need and orientation are suggested for the moderating variables, and the actual usage is adopted as a dependent variable. As a result of multiple regression analysis using a stepwise method, the independent variables except for interface and communication affect the actual usage of organizational blogs. The moderating effects for need and orientation are partially supported. The implications of this study are as the followings; (1) The empirical factors affecting the usage of organizational blogs are empirically investigated, (2) The affecting factors vary according to the type of organizational blogs, and (3) Some guidelines are suggested for organizational blog's design.

대학생소비자의 신용카드에 대한 태도 및 재무관리행동, 신용카드 사용행동의 합리성에 대한 인과분석 (A Path Analysis of Attitudes toward Credit Cards, Financial Management Practices, and Sound Credit Card Use among College Students)

  • 김영신
    • 가정과삶의질연구
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    • 제23권5호
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    • pp.15-26
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    • 2005
  • The purpose of this study was to investigate the factors affecting credit card attitudes, financial management practices, and sound credit card use among college students, and to conceptualize a theoretical model. Earlier studies identified a number of antecedent variables (such as gender, year in college, job experience, amount of allowance, family income, living with parents, having taken a personal financial management course) and intervening variables (such as attitudes towards credit cards and financial management practices) as useful predictors of sound credit card practices. Four hundred and thirty four undergraduate students in Daejeon participated in this study. Stepwise multiple regression and path analysis were conducted. The results of this study were as follows: 1. Students' attitudes towards credit cards were affected by their you in college, whether they were living with their parents, and the amount of their allowance. Similarly, students' financial management practices were affected by their year in college, whether they were living with their parents, the amount of their allowance, and whether and not they had taken a personal financial management course. 2. Sound credit card practices were influenced by students' gender, their year in college, the amount of their allowance, attitudes towards credit cards, and financial management practices. 3. The path-analysis model demonstrates the relationships among the antecedent variables, intervening variables (credit card attitude, financial management practices), and sound credit card use.

노인 건강증진센터 모형개발을 위한 연구: 일 지역보건소에 적용한 사회적지지 프로그램의 효과 (Model Development of an Elderly Health Promotion Center: The Effect of a Social Support Program at a Community Health Center)

  • 박오장;소향숙
    • 대한간호학회지
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    • 제34권5호
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    • pp.781-790
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    • 2004
  • Purpose: The purpose of this study was to develop a model of an elderly health promotion center after witnessing the effect of a social support program on dependent variables in older adults at a local community health center. Method: The subjects were 60 female adults over 65 years dwelling in a rural area, and they were divided into experimental and control groups each with 30 people. A social support program was implemented 6 hours a day, 3 times a week, for 4 months in the experimental group. Included was health assessment, health education, counseling, consultation, exercise, physical & occupational therapy, primary care, recreation, lunch & transfer service. Data was collected from May 1stto September 14th, 2002 by questionnaires, and analyzed by $x^2$-test, t-test, Pearson's correlation coefficient and stepwise multiple regression using SAS. Result: The social support program in the elderly was very effective on all dependent variables of physical health (t=4.68, p=.001), health knowledge (t=3.60, p=.001), life satisfaction (t=8.65, p=.001), and health promoting behaviors (t=5.23, p=.001). Conclusion: The Social Support Program at a Community Health Center was effective on health promoting behaviors in the elderly.

노인의 일에 대한 주관적인 평가와 자아존중감 간의 관계 (A study on Self-esteem and Subjective Evaluations to Work among Elderly Persons)

  • 이신숙
    • 가정과삶의질연구
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    • 제17권1호
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    • pp.45-56
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    • 1999
  • The purpose of this study was to look into correlations between subjective evaluation on the work and self-esteem of the elderly so as to provide information for finding out ways of developing their self-esteem. The subjects of this study were 318 elderly persons in Chonnam and Kwangju city. The statistics used for data analysis were frequency percentage mean standard deviation reliability stepwise and multiple regression analysis through the SAS package program. the major findings of this study can be summarized as follows; 1) The self-esteem of elderly persons was 25,9 which was above the median 24. 2) According to the results related to subjective evaluations on the work among the elderly the positive correlation was by education level family situation economic state social activity level and health state while the negative correlation was by sex, age, and spouse. 3) According to the results related to subjective evaluations on the work among the elderly the positive correl tion was by worker identity job satisfaction quality of work time. 4) In model 1. variable affecting their self-esteem were health sate education level economic state health state age social activity level and sex. In Model 2, variables affecting their self-esteem were worker identity education level economic state age health state social activity level job satisfaction and sex. Especially self-estee of elderly was highly correlated with subjective evaluations on the work among the elderly persons.

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능이버섯의 건조 방정식 (Drying Equations of Sarcodon Aspratus)

  • 금동혁;노정근;정태영;홍성렬;박기문;김훈;한재웅
    • Journal of Biosystems Engineering
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    • 제29권1호
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    • pp.59-64
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    • 2004
  • This study was performed to determine drying equations of sarcodon aspratus. Drying tests for sarcodon aspratus were conducted in an experimental dryer equiped with an air conditioning unit. The drying tests were performed at three air temperatures of 30$^{\circ}C$, 40$^{\circ}C$ and 50$^{\circ}C$, and two relative humidities of 30% and 50%. Measured moisture ratio data were fitted with the selected four drying models(Page, Thompson, Lewis and simplified diffusion models) using stepwise multiple regression analysis. When the coefficients of determination and root mean square errors of moisture ratio were evaluated for four drying models, the Page model was found to fit adequately to all the drying test data with coefficient of determination of 0.9996 and RMSE of 0.00523.

복부 수술을 받은 환자의 낙상에 대한 건강신념이 낙상예방수행에 미치는 영향 (The Influence of Health Belief on Fall Prevention Behavior among Patients Who Experienced Abdominal Surgeries)

  • 김진영;차지영
    • 기본간호학회지
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    • 제25권3호
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    • pp.155-164
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    • 2018
  • Purpose: The purpose of this study was to identify the influences of health beliefs on fall prevention behavior among adult patients who had abdominal surgery. Methods: Data were collected from 136 patients who had undergone an abdominal surgery within the past 5 days. The data collection period was from September 21 to October 25, 2017. The health belief measurement tool, modified and reviewed by experts, and the fall prevention guideline developed by the Korean Nurses Association and revised by Park were used. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson correlation and stepwise multiple regression analysis. Results: The Health Belief Model explained 45.7% of the variance in fall prevention behavior among adult patients who had abdominal surgery. Perceived susceptibility and perceived benefits had significant influence on fall-prevention behavior. Conclusion: Tailored educational programs which put emphasis on the perceived susceptibility and perceived benefits of fall prevention need to be developed.

한국 성인의 비만과 과체중에 따른 혈청 페리틴과 백혈구의 차이 (The Difference in Serum Ferritin and Leukocyte Regarding Overweight and Obese South Korean Adults)

  • 이혜순
    • Journal of Korean Biological Nursing Science
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    • 제21권2호
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    • pp.108-113
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    • 2019
  • Purpose: The purpose of this study was to investigate the difference in serum ferritin and leukocyte regarding overweight and obese South Korean adults. Methods: This study was conducted on 5,281 subjects older than 19, according to data from the Fifth Korea National Health and Nutrition Examination Survey (KNHANES V-3), 2015. Data were analyzed using descriptive statistics, t-test, ANOVA, Scheffe's test, Pearson's correlation coefficient, and stepwise multiple regression analysis (SPSS 24.0). Results: First, serum ferritin and leukocyte were higher regardubg obesity, followed by being overweight and within normal weight. Second, body mass index (BMI) was positively correlated with serum ferritin and leukocyte. Third, factors affecting serum ferritin were gender, and being obese and overweight. Explanatory power of the model was 26.2%. Factors affecting leukocyte were gender, obesity, being overweight, and weight change over the past year (weight gain). Explanatory power of the model was 10.2%. Conclusion: Obesity and being overweight were factors affecting serum ferritin and leukocyte, and obesity was more affected than being overweight in Koreans older than 19. In conclusion, serum ferritin was a marker of inflammation, rather than iron status, in overweight and obese Korean adults.