• Title/Summary/Keyword: Multiple linear Regression

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Nutritional Status of Liver Transplantation Recipients and Factors Influencing Nutritional Status (간 이식 수혜자의 영양 상태와 영향 요인)

  • Hwang, SinYoung;Choi-Kwon, Smi
    • Journal of Korean Academy of Nursing
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    • v.49 no.3
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    • pp.340-348
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    • 2019
  • Purpose: This study aimed to investigate the nutritional status of liver transplantation (LT) recipients and explore certain factors that influence nutritional status, including dietary patterns and physical activities. Methods: This was a cross-sectional, descriptive study. The subjects included 211 LT recipients at a medical center outpatient clinic located in Seoul, Korea. The nutritional status, dietary patterns, and physical activities of each subject were measured using the body mass index (BMI), Mini Dietary Assessment (MDA), and Global Physical Activity Questionnaire. Independent t-test, one-way analysis of variance, and multiple linear regression analysis were used to analyze the data. Results: The percentages of living and deceased donor LTs were 81.0% and 19.0%, respectively. The mean BMIs pre- and post-LT were 23.88 and $23.16kg/m^2$, respectively, and the average MDA score was 36.55. More than 60.0% of the subjects had a moderate or high level of physical activity. In multivariate analysis, a higher BMI before LT (${\beta}=.72$, p<.001), a lower Model for End-stage Liver Disease (MELD) score (${\beta}=-.18$, p<.001), and being male (${\beta}=-.10$, p=.024) contributed to better nutritional status post-LT. Patients within six months of LT were less engaged in muscle exercises than those post six months of LT (p=.020). Conclusion: LT recipients in Korea have good nutritional status and a good level of physical activity. To improve recipients' post-LT nutritional status, the pre-LT nutritional status should be considered, particularly in those with a higher MELD score. In addition, physical activity including muscle-strengthening exercises should be encouraged from an earlier stage.

Impediment in Activity of Daily Living and Social Support for Rural Elderly Farmers Undergoing Nerve Block due to Low Back Pain (만성요통으로 신경차단술을 받은 농촌 노인들의 사회적 지지와 일상생활 활동장애에 관한 연구)

  • Choi, In Young;Hwang, Moon Sook
    • Research in Community and Public Health Nursing
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    • v.30 no.2
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    • pp.206-216
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    • 2019
  • Purpose: This study is to investigate the low back pain, social support, impediment in daily living activities and to identify factors affecting impediment in elderly farmer' daily living activities. Methods: The participants were 128 elderly farmers who had received nerve block. Data were collected using a structured questionnaire from February to March, 2018. They were analyzed using t-test, ANOVA, pearson's correlation coefficient, and linear multiple regression. Results: The score of low back pain was $6.27{\pm}1.69$ (10 points), that of social support $2.92{\pm}0.76$ (1~5 points), and that of impediment in activity of daily living $2.01{\pm}0.82$ (0~5 points). Factors affecting impediment in activity of daily living were found to include age (p=.017), daily hours of farm work (p<.001), fear for the nerve block (p<.001), low back pain (p<.001), and social support (p<.001); the explanatory power of these variables was 58.8%. Conclusion: This study has found the controllable factors affecting impediment in activity of daily living among the rural elderly engaging in farm work include low back pain, social support, and daily farming hours. Therefore, to reduce impediment in activity of daily living among them, it is necessary to develop nursing interventions that can improve impediment in activity of daily living through reduction of daily farming hours using local resources. It is also desirable to improve their health status by reducing low back pain, and develop and apply social supports with health education programs that fit the local resources and the needs of the rural elderly.

The Convergent effect of Self-Efficacy and Social support on Self-Leadership in Nursing Students (간호대학생의 자기효능감과 사회적 지지가 셀프리더십에 미치는 융복합적 영향)

  • Lee, Sun-young;Lee, Jeong-sook;Kim, So-yeun
    • Journal of Digital Convergence
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    • v.17 no.1
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    • pp.249-257
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    • 2019
  • The purpose of the study was to investigate the effect of self-efficacy and social support on self-leadership in nursing students. A self-reported questionnaire was completed by 237 nursing students from September to October 2017, and the study instruments comprised self-efficacy, social support, and self-leadership. The data were analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients, and multiple linear regression using SPSS/WIN 21.0 program. The result showed that the difference in self-leadership relating to general characteristics were significant leader experience, friendship, and school club activities. The correlation among self-efficacy, social support, and self-leadership were significant, and the significant factors influencing self-leadership in nursing students were self-efficacy and social support. In order to increase self-leadership of nursing students, it is necessary to develop and apply a program that enhances self-efficacy and social support. This will help them grow into a competent nurse.

Working Conditions, Job Strain, and Traffic Safety among Three Groups of Public Transport Drivers

  • Useche, Sergio A.;Gomez, Viviola;Cendales, Boris;Alonso, Francisco
    • Safety and Health at Work
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    • v.9 no.4
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    • pp.454-461
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    • 2018
  • Background: Working conditions and psychosocial work factors have acquired an important role explaining the well-being and performance of professional drivers, including those working in the field of public transport. This study aimed to examine the association between job strain and the operational performance of public transport drivers and to compare the expositions with psychosocial risk at work of three different types of transport workers: taxi drivers, city bus drivers, and interurban bus drivers. Method: A sample of 780 professional drivers was drawn from three transport companies in Bogota (Colombia). The participants answered the Job Content Questionnaire and a set of sociodemographic and driving performance questions, including age, professional driving experience, work schedules, and accidents and penalties suffered in the last 2 years. Results: Analyses showed significant associations between measures of socio-labor variables and key performance indicators such road traffic accidents and penalties. Furthermore, multiple linear regression analysis contributed to explain significantly suffered accidents from key variables of the Job Demand-Control model, essentially from job strain. In addition, throughout post-hoc analyses, significant differences were found in terms of perceived social support, job strain, and job insecurity. Conclusion: Work stress is an issue that compromises the safety of professional drivers. This research provides evidence supporting a significant effect of job strain on the professional driver's performance. Moreover, the statistically significant differences between taxi drivers, city bus drivers, and interurban bus drivers in their expositions to work-related stress suggest the need for tailored occupational safety interventions on each occupational group.

The Investigation of Influencing Factors to Attitude toward Doping in Korean Athletic Players (육상선수의 도핑태도에 관한 영향요인 탐색)

  • Park, Jaemyoung;Choi, Hokyung;Kim, Taegyu
    • Journal of Digital Convergence
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    • v.17 no.5
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    • pp.391-398
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    • 2019
  • This study aimed to investigate the factors that influence the attitude toward doping and to provide useful information for developing a doping prevention program suitable for Korean athletic players. One hundred and seventy-two players who enrolled in Korea Association of Athletics Federations were participated in this study and they filled in the questionnaire about demographic factors, information on doping, perfectionism, and perceived motivational climate. Collected data were analyzed by using stepwise multiple linear regression for exploring the main factor that affect the attitude toward doping depending on field and track events. All adult players have more permissive attitude toward doping than adolescents. In track event, while players who are sensitive to coach's criticism have more permissive attitude toward doping, players who focused on personal standards have more repressive attitude toward it. These results would be useful to develop anti-doping strategy for Korean field and track players.

Relationship between hand hygiene beliefs and nail hygiene behaviors among dental workers in South Korea

  • Jeong, Ju-Hui;Mun, So-Jung;Yoo, Ja-Hae;Noh, Hie-Jin
    • Journal of Korean society of Dental Hygiene
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    • v.19 no.3
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    • pp.363-373
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    • 2019
  • Objectives: The purpose of this study was to investigate nail hygiene behaviors and to identify the relationship between hand hygiene beliefs and nail hygiene behaviors among dental hygienists, dental's aide and dental coordinator in South Korea. Methods: The subjects were 291 dental workers including dental hygienists, dental assistant and dental coordinator working full-time at dental clinics, dental hospitals, general dental hospitals and dental university hospitals in Seoul, Incheon, and Gyeonggi-do. The questionnaire consisted of a total 35 items, including 4 items on general characteristics, 25 items on hand hygiene, 2 items on "nail art" experience, and 4 items on nail hygiene behaviors. The collected data were analyzed using an independent t-test, one-way ANOVA, chi-square test, correlation analysis, and multiple linear regression analysis, where ${\alpha}<0.05$ was considered statistically significant. Results: The scores of behavioral beliefs, normative beliefs, control beliefs and nail hygiene behaviors were $5.15{\pm}0.58$, $5.26{\pm}0.81$, $3.69{\pm}0.96$ and $5.03{\pm}0.98$, respectively. Statistically significant relationships were detected in terms of participants' clinical experiences with respect to behavioral and normative beliefs (p<0.05 for all three belief categories). Participants working in general dental hospitals and dental university hospitals demonstrated the highest scores for behavioral, normative and control beliefs (p<0.05). Participants working in dental clinics reported the highest "nail art" experience rates in the last two years (45.5%) and at the time of the survey (15.7%; p<0.05). Nail hygiene behaviors were more likely to be observed in individuals with stronger behavioral and stronger normative beliefs (p<0.05). Conclusions: More specific infection control guidelines for "nail art" among dental workers should be established and promoted, so that both patients and dental workers can interact in a safe environment.

Association of Job Stress and Health Promotion Behaviors with Quality of Life among Female Riot Police Officers (여자 경찰 기동대원의 직무 스트레스, 건강증진행위와 삶의 질의 관련성)

  • Ryu, Gi Wook;Choi, Mona
    • Korean Journal of Occupational Health Nursing
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    • v.28 no.4
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    • pp.187-196
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    • 2019
  • Purpose: The purpose of this study was to investigate the association of job stress and health promotion behaviors with the quality of life in female riot police officers. Methods: A cross-sectional design was adopted, and a convenience sample of 182 female riot police officers from 5 Metropolitan Police Agencies in South Korea. All participants completed a self-administered survey questionnaire that assessed job stress, health promotion behavior, and quality of life in May 2018. The collected data were analyzed using t-test, analysis of variance, and correlation and multiple linear regression analyses, all of which were executed using SPSS/WIN 23.0 and STATA 13.0. Results: The level of job stress among participants was moderate, and the mean was 45.25 out of a maximum possible score of 100. The mean scores that emerged for health promotion behaviors and the quality of life were 2.62 (maximum=4) and 56.59 (maximum=100), respectively. Job stress (r=-.380, p<.001) and health promotion behaviors (r=.559, p<.001) were correlated with the quality of life. The statistically significant predictors of the quality of life were job stress (${\beta}=-.212$, p=.001) and health promotion behaviors (${\beta}=.417$, p<.001). Conclusion: The variables that were associated with the quality of life of female riot police officers were job stress and health promotion behaviors. Therefore, interventions that can enhance job stress management and health promotion behaviors are needed to improve the quality of life of female riot police officers.

Prediction of damages induced by Snow using Multiple-linear regression and Artificial Neural Network model (다중선형회귀 및 인공신경망 모형을 이용한 대설피해에 따른 피해액 예측에 관한 연구)

  • Kwon, Soon Ho;Lee, Eui Hoon;Chung, Gunhui;Kim, Joong Hoon
    • Proceedings of the Korea Water Resources Association Conference
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    • 2017.05a
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    • pp.20-20
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    • 2017
  • 최근 기후변화 영향에 따라 전 세계적으로 인명피해 및 재산피해를 유발하는 자연재난이 지속적으로 증가하고 있으며, 그로 인한 자연재해의 규모가 점점 더 커지고 있다. 실제로 우리나라에서도 지난 1994 년에서 2013 년까지 지난 20 년간 자연재해에 의한 피해액은 12조 3천억 원으로 집계되었으며, 이 중 강우와 태풍에 의한 피해가 85 % 이고, 대설에 의한 피해는 약 13 % 로 자연재해 중 대부분의 피해는 강우 및 태풍에서 발생하지만, 폭설에 의한 피해도 적지 않은 것으로 나타났다. 이에 따라, 정확한 예측을 위해 신뢰도 높은 자료 구축을 통한 대설피해 예측에 관한 연구가 필요한 시점이다. 본 연구에서는 대설피해액 예측을 위해 우리나라의 63개 기상 관측소에서 관측한 적설심 자료 및 기상관측 자료와 사회 경제 자료 총 11개를 대설피해 예측을 위한 입력변수로 선정하고, 이를 기상관측소가 속한 도시의 면적에 따라 3개의 지역으로 구분하였다. 주성분분석을 활용하여 선정된 입력변수들을 4개의 주성분으로 구분하고, 인공신경망 및 다중선형 회귀 모형을 구성하여 각 지역별 대설피해 예측의 오차를 분석하였다. 적용결과, 인공신경망 모형을 이용한 대설피해 예측의 수정결정계수는 22.8 %~48.2 %를 나타냈고, 다중선형회귀 모형의 수정결정 계수는 9.2 %~39.7% 로 나타났다. 그러므로 인공신경망 모형이 다중회귀 모형보다 선택된 입력자료를 활용하여 대설피해를 예측하는 목적으로 조금 더 우수한 결과를 나타내었다. 향후 자료를 보완 및 모형의 고도화를 통해 보다 정확한 대설피해 예측 함수 개발이 가능할 것으로 기대된다.

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The Effects of Knowledge and Attitudes related to Tuberculosis on Tuberculosis Prevention Behaviors in North Korea Refugee Adolescents (북한이탈청소년의 결핵에 대한 지식 및 태도가 결핵예방행위에 미치는 영향)

  • Kim, Seon Hwa;Shin, Juh Hyun
    • Journal of the Korean Society of School Health
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    • v.33 no.3
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    • pp.164-174
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    • 2020
  • Purpose: The purpose of this study was to identify the factors affecting tuberculosis prevention behaviors in North Korean adolescent refugees. Methods: From September 16 to October 8, 2019, a survey was conducted to collect data from 143 North Korean adolescent refugees aged 13 to <25 at alternative and general schools in Seoul and Gyeonggi Province. The scale developed by Park (2008) and adapted by Cha (2012) was used to rate tuberculosis prevention behaviors in daily life with the aim of preventing high school students from getting infected with tuberculosis. The collected data were processed through frequency analysis, descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients, and multiple linear regression, using SPSS 25.0. Results: The mean score was 13.65 for knowledge of tuberculosis, 44.23 for attitudes towards tuberculosis, and 41.33 for tuberculosis prevention behaviors. Significant differences were found according to gender, country of origin, duration of stay in South Korea, tuberculosis examination, pre-entry chest x-ray, education about tuberculosis, alcohol intake, and subjective health status. A positive correlation was found between knowledge, attitudes, and prevention behaviors. The factors affecting tuberculosis prevention behaviors were attitudes (β=.38, p<001) and subjective health status (β=.26, p<.001). Conclusion: It is necessary to provide attitude-based education that can reinforce positive attitudes in order to improve North Korean adolescent refugees' tuberculosis prevention behaviors. This is expected to help them pay more attention to health care and become better at prevention behaviors. It is, therefore, necessary to develop a tuberculosis prevention education program with the aim of making them more knowledgeable about tuberculosis and providing them with systematic and sustainable education.

Effects of Childcare Teacher's Job Satisfaction and Professional Learning Environment on the Turnover Intention (국공립과 민간·가정 어린이집 보육교사의 직무만족도 및 전문성 지원환경이 이직의도에 미치는 영)

  • Moon, Hyuk-Jun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.6
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    • pp.140-146
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    • 2021
  • This study examined the effects of childcare teachers' job satisfaction and the professional learning environment on their turnover intention. The study sample consisted of 625 childcare teachers in the S, I, and G area of Korea. Childcare teachers completed a self-administered questionnaire, and the data were analyzed using a t-test, Pearson correlation, and multiple linear regression analysis. The main findings were as follows. First, the level of turnover intention was varied by the type of childcare facility. Childcare teachers working in national and public facilities had a lower turnover intention than the facilities of private and homes. Second, the childcare teacher's job satisfaction, professional learning environment, and turnover intention were closely correlated regardless of the type of childcare facility. Third, the childcare teacher's job satisfaction and professional learning environment were significant predictors of the turnover intention. Therefore, policymakers need to address these issues.