• 제목/요약/키워드: Multiple linear Regression

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The Effects of the Dietary Lifestyle and Demographic Characteristics on the Brand Image of Restaurants with Nutritional Labeling (식생활라이프스타일과 인구통계적 특성이 외식영양표시 외식업체의 브랜드 이미지에 미치는 영향)

  • Kim, Na-Hyung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.6
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    • pp.548-556
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    • 2019
  • The purpose of this study is to analyze the impact of dietary lifestyles and demographic characteristics on the Brand image of restaurants with Nutritional labeling to provide basic marketing data for establishing differentiated Brand image strategies for restaurant businesses. To that end, the SPSS21.0 (ver.) program, frequency analysis, descriptive statistics, factor analysis, reliability analysis, correlation analysis, and multiple linear regression analysis were conducted to verify the hypothesis. As a result, the Brand image of restaurants with Nutritional labeling improved as the metropolitan area sought safety, non-capital area sought taste, males sought health, and females sought safety. In terms of age, it was analyzed that as more people in their 20s sought taste, those their 30s and 40s sought safety, and both married and unmarried people sought safety, the Brand image of restaurants with Nutritional labeling improved. In other words, it could be seen that people with Dietary lifestyles who pursued health and safety had positive images of restaurants with Nutritional labeling regardless of residential area, age, gender, marital status, or whether they had children.

Conformity Assessment of Machine Learning Algorithm for Particulate Matter Prediction (미세먼지 예측을 위한 기계 학습 알고리즘의 적합성 평가)

  • Cho, Kyoung-woo;Jung, Yong-jin;Kang, Chul-gyu;Oh, Chang-heon
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.23 no.1
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    • pp.20-26
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    • 2019
  • Due to the human influence of particulate matter, various studies are being conducted to predict it using past data measured in the atmospheric environment monitoring network. However, it is difficult to precisely set the measurement environment and detailed conditions of the previously designed predictive model, and it is necessary to design a new predictive model based on the existing research results because of the problems such as the missing of the weather data. In this paper, as a previous study for particulate matter prediction, the conformity of the algorithm for particulate matter prediction was evaluated by designing the prediction model through the multiple linear regression and the artificial neural network, which are machine learning algorithms. As a result of the prediction performance comparison through RMSE, 18.13 for the MLR model and 14.31 for the MLP model, and the artificial neural network model was more conformable for predicting the particulate matter concentration.

Daily stress and smartphone overdependence among multicultural adolescents: Comparisons by gender and age (다문화 청소년의 일상생활 스트레스와 스마트폰 과의존의 관계: 성별 및 연령별 비교)

  • Lee, RaeHyuck
    • Journal of Digital Convergence
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    • v.16 no.11
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    • pp.561-569
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    • 2018
  • The aim of this study was to examine the association between daily stress and smartphone overdependence among multicultural adolescents, focusing on the moderating roles of gender and age. This study performed a series of multiple linear regressions with a sample of 794 multicultural adolescents living with a foreign-born parent or parents from the 13th Korea Youth Risk Behavior Web-Based Survey. The main regression analysis showed that daily stress was associated with higher levels of smartphone overdependence among multicultural adolescents. In addition, interaction analyses showed that the association between daily stress and smartphone overdependence was more pronounced for male adolescents compared to female adolescents, and for middle school students compared to high school students. This study concluded with some suggestions to address smartphone overdependence among multicultural adolescents.

Patient Safety Teaching Competency of Nursing Faculty (간호대학 교수의 환자안전 교육역량)

  • Ahn, Shinae;Lee, Nam-Ju;Jang, Haena
    • Journal of Korean Academy of Nursing
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    • v.48 no.6
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    • pp.720-730
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    • 2018
  • Purpose: The purpose of this study was to investigate patient safety teaching competency of nursing faculty and the extent of teaching patient safety topics in the nursing curriculum. Methods: A national survey was conducted with full-time nursing faculty in 4-year nursing schools. Regional quota sampling method was used. An online survey was sent to 1,028 nursing faculty and 207 of them were completed. Among the 207, we analyzed data from 184 participants. The revised Health Professional Education in Patient Safety Survey was used. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, Pearson's correlation analysis, and multiple linear regression analyses. Results: The faculty's self-confidence was lower than their perceived importance of patient safety education. The mean score of teaching patient safety was $3.52{\pm}0.67$ out of 5, and the contents were mostly delivered through lectures. The extent of faculty's teaching varied depending on faculty's clinical career, teaching subjects, participation in practicum courses, and previous experience of patient safety education. The significant predictors of the extent of teaching patient safety were the faculty's self-confidence in teaching patient safety (${\beta}=.39$) during clinical practicum, their perceived importance of patient safety education during lectures (${\beta}=.23$), and the teaching subject (${\beta}=.15$). Conclusion: To enhance the competency of nursing faculty for effective patient safety education, a patient safety education program tailored to faculty characteristics should be developed and continuously provided for faculty. In addition, it is necessary to improve patient safety curriculum, strengthen clinical and school linkages, and utilize various education methods in patient safety education.

Knowledge and Compliance with Blood-Borne Pathogen Prevention of Hospital Nurses: Based on Clinical Experience (병원 간호사의 혈액매개감염 예방지식과 이행: 직무경력을 기준으로)

  • Cha, Hyo Sung;Lee, Kyung Mi
    • Journal of Korean Clinical Nursing Research
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    • v.25 no.1
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    • pp.43-54
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    • 2019
  • Purpose: Exposure to blood and body fluids represents a significant occupational risk for nurses. This study was done to identify the level of knowledge of and compliance with blood-borne pathogen prevention of hospital nurses according to clinical experience, and to identify factors affecting compliance with blood-borne pathogen prevention. Methods: A descriptive correlational study was conducted in which self-reported knowledge of and compliance with blood-borne pathogen prevention was assessed. The relationships between variables were examined. Registered nurses who were employed (n=345) were surveyed. Data were analyzed using, t-test, ANOVA, Pearson correlation, and multiple linear regression. Results: Nurses with more than 5 years experience had greater knowledge of blood-borne pathogen prevention than nurses with less than 5 years experience. However, there was no significant difference in compliance with blood-borne pathogen prevention between the two groups. No significant correlation was found between knowledge and compliance with blood-borne pathogen prevention according to experience standards. In nurses with less than 5 years experience, gender, age, reported exposure to a blood-borne pathogen, and compliance with principles of prevention had a significant impact on compliance with blood-borne pathogen prevention. For nurses with more than 5 years experience, reporting after exposure to blood-borne pathogen was a contributing factor to compliance with blood-borne pathogen prevention. Conclusion: The study results show that to improve the implementation of preventive measures against blood-borne pathogens different strategies are needed, depending on clinical experience of the nurses.

A Study on the Influential Factors of the Resilient Development of Green Belts in Beijing (베이징시 그린벨트의 탄성 발전에 영향을 미치는 요소에 대한 연구)

  • He, Shun-Ping;Hong, Kwan-Seon
    • The Journal of the Korea Contents Association
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    • v.19 no.6
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    • pp.236-248
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    • 2019
  • Green belts can help to set boundary for city growth, provide ecological protection system and enhance the resilience of Beijing. During the implementation period of the current overall city planning of Beijing, the proportion of green space varies much among the sub-districts, villages and towns involved in the two green belts in the research. With this as starting point, by researching the correlations of 'city system factors' and 'planning policy factors' with the change in the scale of green space, the paper discussed the influential factors of implementing the planning of green space of Beijing, and conducted quantitative research, with such possible influential factors classified into 'city system factors' and 'planning policy factors'. Through multiple linear regression model, the paper tested the correlations of city system factors and planning policy factors (independent variable) with the increment in the construction land in green belts (dependent variable). Through influence to population aggregation and the expansion force of construction land, city system factors such as mountain land and water, house rent of unit area, accessibility of public transport and the newly-defined state-owned construction land generate correlation with the change in the scale of construction land in green belts.

Factors Related to Preoperative Shoulder Pain in Patients with Atraumatic Painful Rotator Cuff Tears

  • Park, In;Lee, Hyo-Jin;Kim, Sang-Ki;Park, Min-Sik;Kim, Yang-Soo
    • Clinics in Shoulder and Elbow
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    • v.22 no.3
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    • pp.128-134
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    • 2019
  • Background: Patients with rotator cuff tears are usually afflicted with shoulder pain and disability. However, it is unclear which factors are related to shoulder pain in patients with rotator cuff tears. This study was therefore undertaken to determine the factors correlated with shoulder pain in patients with painful rotator cuff tears, but without any history of trauma. Methods: We evaluated a cohort of 745 patients with painful rotator cuff tears having no trauma history, and analyzed the relationship between pain and multiple factors including demographic data, tear characteristics, and passive range of motion. Pain was analyzed with a questionnaire concerning the visual analogue scale (VAS) for pain. Tear characteristics were determined by evaluating tear size, muscle atrophy, number of torn tendons, and presence of arthritis. Multivariate linear regression analysis and chi-squared test were applied to evaluate the relationship between the VAS for pain and variable factors. Results: Shoulder pain was associated with young age (p=0.01), male sex (p=0.01) and the presence of diabetes mellitus (p<0.001). Measurements of rotator cuff tear characteristics including tear size (p=0.53), muscle atrophy (p=0.16) and the number of torn tendons (p=0.34) did not correlate with shoulder pain. Symptom duration (p=0.60) and range of motion (p>0.05) also showed no correlation with VAS for pain. Conclusions: Young age, male sex and the presence of diabetes mellitus correlated positively with preoperative shoulder pain in patients with painful rotator cuff tears without a trauma history. Combined treatment of pain management and risk factor correction could be helpful to control preoperative shoulder pain.

Association Between Dental Implants and Cognitive Function in Community-dwelling Older Adults in Korea

  • Ki, Seungkook;Yun, Jihye;Kim, Jinhee;Lee, Yunhwan
    • Journal of Preventive Medicine and Public Health
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    • v.52 no.5
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    • pp.333-343
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    • 2019
  • Objectives: This study aimed to evaluate the association between dental implants and cognitive function in community-dwelling older adults. Methods: Data were collected from the baseline survey (2016-2017) of the Korean Frailty and Aging Cohort Study. The study sample comprised 1115 community-dwelling people aged 70 years to 84 years who had 0-19 natural teeth. Dental implants and natural teeth were identified by panoramic radiography, while the cognitive function was assessed by the Korean version of the Mini-Mental State Examination (MMSE-KC). The association between dental implants and cognitive function was analyzed by multiple linear regression. Sensitivity analysis was performed to test for potential bias. Results: The mean number of natural teeth in the study population was 9.50 (standard deviation [SD], 6.42), and the mean MMSE-KC score was 24.93 (SD, 3.55). In the simple univariate analysis, tooth replacement, age, sex, smoking status, alcohol consumption, body mass index, osteoporosis, number of natural teeth, periodontitis, chewing discomfort, tooth-brushing frequency, education level, monthly household income, participation in economic activity, living alone, and marital status had a significant impact on the association. After adjusting for confounders, the association between dental implants and cognitive function remained significant (B, 0.85; standard error, 0.40; p<0.05). Age, body mass index, periodontitis, tooth-brushing frequency, and education level were also significantly associated with cognitive function. The results of the sensitivity analyses were consistent with those of the primary analysis. Conclusions: Dental implants were associated with cognitive function in older adults living in the community. Dental implants as tooth replacements may play a role in preserving cognitive function.

Differences between Perceived Readiness for Interprofessional Learning in Nursing and Other Health-related Students (간호학과와 타 보건의료관련 학과 학생들의 전문직 간 학습 준비도 차이)

  • Lee, Hyeonkyeong;Kim, In Sook;Lee, Tae Wha;Kim, Gwang Suk;Cho, Eunhee;Lee, Kyung Hee;Kim, Junghee
    • The Journal of Korean Academic Society of Nursing Education
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    • v.25 no.3
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    • pp.312-320
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    • 2019
  • Purpose: The purpose of this study was to investigate the level of perceived readiness for interprofessional learning and its differences between nursing and other health-related students. Methods: A web-based survey was conducted from April 25 to June 30, 2017 in one university in Korea. A total of 325 undergraduate nursing students and other health-related disciplines completed the structured questionnaire consisting of Readiness for Interprofessional Learning Scale and general characteristics. Data were analyzed by descriptive statistics, t-test, ANOVA, and multiple linear regression. Results: The scores of readiness for interprofessional learning in nursing students were significantly higher than those in other health-related students (t=3.50, p=.001). Nursing students had higher collaboration, professional identity, and roles and responsibilities than other health-related students. The class experiences with other major students was a significant factor related to the readiness for interprofessional learning both in nursing (p=.001) and other health-related students (p=.001). Conclusion: The findings suggest that nursing educators consider the different level of readiness for interprofessional learning between nursing and other health-related students while integrating interprofessional education into nursing education curricula.

The Effects of the Gender Role Conflict on Nursing Professionalism in Male Nursing College Students (남자 간호대학생의 성역할 갈등이 간호전문직관에 미치는 영향)

  • Jeong, Chu-young;Seo, Young-sook;Kang, Bok-Hee;Cho, Eun-ha
    • Journal of Korean Clinical Health Science
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    • v.7 no.1
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    • pp.1248-1256
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    • 2019
  • Purpose: The purpose of this study was to identify the effects of the gender role conflict on nursing professionalism in male nursing college students. Method: The subjects were 113 male college students in D and J city. The data were collected from April 24 to May 3, in 2017 using a structured questionnaire. The data were analyzed using the SPSS WIN 24.0 program. For data analysis, independent t-test, One-way ANOVA, Pearson's correlation coefficient and multiple linear regression analysis were carried out. Results: The results are follows. First, the individual characteristics in gender role conflict were significantly different in motivation(F=2.62, p=0.028) and the entering college decision(F=3.14, p=0.028), and nursing professionalism were significantly different in the entering college decision(F=4.34, p=0.006). Second, a negative relationship was observed between the gender role conflict and nursing professionalism(r=-.287, p=<0.01). The success, power and competition(${\beta}=0.19$, p<0.05) and male superiority(${\beta}=-0.47$, p<0.001) were found to influence nursing professionalism. Conclusion: These results highlight the need to develop educational intervention to lower the superiority of the male and to encourager success, power and competition of male nursing college students.