• Title/Summary/Keyword: Multi-level regression analysis

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A study on determining of proper retail rents in commercial area (적정의 상가 임대료 결정에 관한 연구)

  • Jeong, Seung-Young;Kim, Hak-Hawn
    • Journal of Cadastre & Land InformatiX
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    • v.44 no.2
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    • pp.177-192
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    • 2014
  • The factors that affect on the ratio of monthly rent to total rents in commercial real estate lease contract was empirically investigated. The theoretical basis for the research was location theory, retail trade-area analysis, bid rent, agglomeration theory, and demand externality theory. The data used in this study included information on goodwills per 3.3 square meters, deposit money per 3.3 square meters, retail rents per 3.3 square meters, and passing pedestrians' characteristics in 96 retail trade areas in South korea. As the results, using the hedonic price functions and multi-regression analysis, the independent variables does affect the ratio of monthly rent to total rents in the each retail trade area were goodwills per 3.3 square meters, deposit money per 3.3 square meters, retail rents per 3.3 square meters, and the number of Small Wholesale Retail Trade Firms at the level of nation. also, the results show goodwills per 3.3 square meters and the number of Small Wholesale Retail Trade Firms are important factors in determining the ratio of monthly rent to total rents in commercial real estate lease contract in seoul. In summary, not only the economic conditions in the retail trade area but also the passing pedestrian count should be considered to determine the ratio of monthly rent to total rents in commercial real estate lease contract.

A Study on the Relationship between Job Stress and Socio-Psychological stress of firefighter (소방공무원의 직무스트레스와 사회심리적 스트레스와의 연관성에 관한 연구)

  • Kang, Byung-Woo
    • The Korean Journal of Emergency Medical Services
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    • v.13 no.1
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    • pp.35-48
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    • 2009
  • Purpose: Firefighters were subjected to be exposed to 24-hour shiftwork and high level of job stress, but there is little study of fire fighters about between Job Stress and Psychological stress in Korea. This study was performed to evaluate job stress of fire fighters grouped by different job types and analyze the health effect of job stress by using a PWI-SF(Psycho-social Well-being Index, Short Form). Methods : This study was to measure the degree of job stress and socio-psychological stress of firefighters working at 119 safety center and analyze the relationship between job stress and mental health, through self-administered questionnaire survey on 918 fire fighters working at fire department located in Korea, during October in 2008. Question items of the questionnaire consist of general characteristics, job stress, and socio-psychological stress. Job Stress Measurement Scale for Koreans was used to measure job stress, while PWI-SF used for socio-psychological stress. Collected data was analyzed through frequency analysis, ${\chi}^2$ test, one-way ANOVA, correlation analysis, multi-regression analysis using a statistic program, SPSS/10.0 Ver for Windows, and statistical significance level was 0.05. Result : Accordingly, this paper is written for the purpose of scrutinizing the reason of 119 rescuers' job stress and Socio-Psychological stress. This thesis tries to analyze a problem and provide contents through many variables concerned and theoretical investigation with the actual research of questionnaire. The results of the study are summarized as follows : Fire fighters feel relatively high stressful in their performance. Job stress, organizational commitment and burnout did not have been influence upon by individual cases such as economic condition, regular exercise etc. Finally, as a result of step by step regression analysis, the variable that can explain Socio-Psychological stress the best was negative emotion scale(NE). Conclusions : It is necessary to conduct repeated studies in the future, since the study implied that there was a contrary relationship between job stress and socio-psychological stress. In order to reduce job stress and maintain better mental health, it is more important than anything else to help firefighters have willingness and efforts to sustain a healthy life, so the development of various programs and education to raise their awareness should be implemented.

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Study on Frailty Profiles and Associated Factors in Later Adulthood (노년기 허약 유형과 영향요인에 관한 연구)

  • Kim, Young-Sun;Kang, Eunna
    • 한국노년학
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    • v.38 no.4
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    • pp.963-979
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    • 2018
  • The purpose of this study was to identify frailty profiles based on physical, psychological, and social domains of functioning and to examine the associated factors showing the differences among frailty profiles. Respondents were 70 years and older(n=403) and latent class analysis was applied to determine the optimal subgroups based on Tilberg Frailty Indicators which comprised of three domains(the physical, psychological, and social domain). Also, we performed multinominal logistic regression analysis to find out factors making differences among frailty profiles. Latent class analysis(LCA) identified three distinct types: multi-frail type(27.0%), psychologically frail type(26.8%), inadequate support type(46.2%). All three types had common difficulties in dealing with daily life problems and did not receive enough help with theses difficulties. Based on the results of the LCA three-class models, people in multi-frail type accumulated problems in physical and psychological domains and had partially social domain. On the other hands, psychologically frail type showed a relatively high anxiety disorder and depression. Lastly, people in inadequate support type reported the lack of helps, but they were relatively healthy. Comparing these groups with inadequate support type, people with multi-frail had lower educational level, poor nutritional management status and were less likely to participate in labor market. People in psychologically frail type were more likely to be male, to live in big cities rather than middle and small cities, and less likely to smoke. Based on these results, our results showed the multifaceted concept of frailty among Korean elderly people and we suggested several implications for preventing frail process.

The Effects of Middle-aged Korean's Experience Discriminated on Discrimination against the Elderly: The Moderating Effects of Awareness of Social Status of the Aged (중년의 차별경험이 노인에 대한 차별행동에 미치는 영향: 노인지위인식의 조절효과)

  • Kim, Soo Jin;Kim, Mee Hye
    • 한국노년학
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    • v.38 no.1
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    • pp.187-202
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    • 2018
  • The purpose of this study was to examine the effects of the middle-aged Korean's experience discriminated level on the acts of discrimination against the elderly, and moderating effect of the awareness of social status of the aged. The subjects were 509 middle-aged(40-54 years old) from the Korean General Social Survey(KGSS)(2011). This study applied descriptive analyses, correlation analysis and multi-regression with STATA14. The results showed that the level of discrimination against the elderly was 2.20points(5 points), and awareness of elderly's social status was 2.45 points (4 points). Middle-aged Korean's experience discriminated was 0.74. The results of multiple regression analysis showed that discriminatory experiences affect positively on discrimination against the elderly. However, the awareness of elderly' social status had a negative interaction effect on the relationship between discriminatory experiences and discrimination against the elderly. Discrimination against the elderly was increased when the level of experience of discrimination was high and the social status of the aged was low. Based on the results, this study suggested practical and political opinions for reducing Discrimination against the elderly.

Choice & Satisfaction Factors of Musical as Culture Contents (문화콘텐츠로서 뮤지컬의 선택 및 만족요인)

  • Choi, Tae-Kyu
    • The Journal of the Korea Contents Association
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    • v.11 no.6
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    • pp.205-214
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    • 2011
  • This study was to investigate the choice & satisfaction factors of a musical as culture contents, and I will recognize it about relation between these two factors. To achieve this, I did a survey with spectators of . Factors analysis and simple/multi regression analysis are utilized as data analytical methods. The choice factors of musical showed that it was five factors extracted a price and facilities, production and directing, marketing, musical quality, OSMU. The satisfaction factors of musical was four factors extracted a production company and trust of advertisement, artistic presentation, harmony of All members of the cast, level of leading actor or actress. The choice of musical influenced satisfaction factors showed that it as performance prices and facilities level is reasonable, and spectators expect high satisfaction regarding a performance. Analysts say that, Pricing to be exposed to quality of a work in order to raise musical satisfaction shall be performed. Also, An exaggerated performance marketing is negative to satisfaction of an audience compare with quality of a work it was confirmed to affect. This study suggests that important point is planning, directing and marketing of a musical.

Measurement and Analysis of Dust Concentration in a Fattening Pig House Considering Respiratory Welfare of Pig Farmers (비육돈사 작업 종사자의 호흡기 관련 공기 중 분진 농도 측정 및 분석)

  • Kwon, Kyeong-Seok;Lee, In-Bok;Hwang, Hyun-Seob;Ha, Tae-Hwan;Ha, Jung-Soo;Park, Se-Jun;Jo, Ye-Seul
    • Journal of The Korean Society of Agricultural Engineers
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    • v.55 no.5
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    • pp.25-35
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    • 2013
  • In swine house, dust generation comes from various sources and is known to be harmful both for the animals and the farmers because the dust contains biological and gaseous matters. When farmers are constantly exposed to the dusts, they can suffer chronic or acute respiratory symptoms and have high probability of manifesting various diseases. To address this problem, understanding of the mechanism of dust generation is very important. In this paper, the dust concentration of inhalable, respirable, TSP and $PM_{10}$ were monitored and analyzed according to the pig-activity level, ventilation quantity and feeding method in fattening pig house. From the measured results, in case of the concentration of TSP, an inverse-linear relation with ventilation rate ($R^2=0.88$) and linear relation with the installation height of feed supply pipe ($R^2=0.73$) were determined. However in case of the concentration of $PM_{10}$, no particular relationship with the variables was observed. Using the concentration of inhalable and respirable dust based on the pig-activity level, multi-variate regression analysis was conducted and results have shown that the movement of pigs can contribute to the dust generation (p<0.05, $R^2=0.71$, 0.61). The relationship determined between dust generation and environmental variables investigated in this study is very significant and useful in conducting dust-reduction researches.

A Study on Self-efficacy of Course Decision and Major Field Satisfaction in Dental Hygiene Students (치위생과 학생의 진로결정 자기 효능감과 전공만족 관계 연구)

  • Kim, Gey-Pyo
    • Journal of Korean Clinical Health Science
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    • v.1 no.2
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    • pp.49-57
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    • 2013
  • Purpose. This study was purposed to seek for a way to enhance the self-efficacy of students in dental hygiene department at deciding their careers by analyzing the relationship between the self-efficacy and the major satisfaction. Methods. The investigator conducted a survey targeting 253 students attending on dental hygiene departments in two 3-year-graduate colleges and 1 university located in Busan from May 1st to May 30th, 2013. The used research instruments were the major satisfaction questionnaire and the Career Decision-Making Self-Efficacy Scale Short Form(CDMSES-SF). The survey was conducted in self-administered questionnaire. The data was analyzed with SPSS (ver 12.0) and also conducted t-test, ANOVA and multi-regression analysis. Results. It was found that self-efficacy level of students in dental hygiene department was $3.22{\pm}0.38$ point, and their major satisfaction level was $3.27{\pm}0.47$ point. The factors enhancing the self-efficacy of students in dental hygiene department at deciding their careers were identified as the curriculum satisfaction, the relationship satisfaction, and the recognition satisfaction. It was identified that more these elements were increased, the higher the self-efficacy level was enhanced. Conclusions. In order to enhance the self-efficacy of students in dental hygiene department at deciding their careers, it is considered that the curriculum should be organized carefully under reasonable plan, and there should be more active communication between professors and students as well as students each other. Besides there needs some educational programs to inspire the pride and sense of duty for the dental hygiene department.

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A Study of Attitudes Toward Suicide Report among Individuals with and without Suicidal Thoughts and Suicide Attempts (자살 사고와 자살 시도가 있거나 없는 개인의 자살 보도에 대한 태도 연구)

  • Koh, Kyoung-Nam;Lee, Sang-Uk;Park, Jong-Ik
    • Korean Journal of Biological Psychiatry
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    • v.27 no.1
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    • pp.9-17
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    • 2020
  • Objectives The purpose of this study is to investigate the interest level, perception and attitude of suicide high-risk group toward the media's suicide report, and also to provide the fundamental data in order to strengthen both the standard and the recommendation of media coverage in Korea. Methods We analyzed the data from the 2013 The Korea National Suicide Survey. The study included 1500 participants aged between 19 and 75 years. The participants were selected through the regional multi-layer stratification method using the sampling frame of the 2010 Census. One-on-one face-to-face interviews investigated the interest level, opinions, and attitudes toward suicide reports and collected data on past suicide history and demographic data. The collected data were evaluated using multiple logistic regression analysis. A probability level of p < 0.05 was considered statistically significant. Results The suicide high risk groups with histories of suicidal ideations or attempts showed more interest in suicidal reports [suicidal thought odds ratio (OR) = 1.81, 95% confidence interval (CI) = 1.40-2.34 ; suicidal attempt OR = 3.21, 95% Cl = 1.52-6.78]. However, there was no difference among the groups in thought that suicide reports incite suicide (suicidal thought OR = 1.26, 95% Cl = 0.92-1.73 ; suicidal attempt OR = 0.96, 95% Cl = 0.44-2.09). The suicide high risk groups showed a positive attitude toward suicide reports, but it was not statistically significant (suicidal thought OR = 1.10, 95% Cl = 0.41-2.92 ; suicidal attempt OR = 1.10, 95% Cl = 0.76-1.59). Conclusions We suggest the need of careful attitude of media suicidal reports not to bring about copycat suicides. and also we offer suicide prevention campaign based on media leverage.

Variation in radial head fracture treatment recommendations in terrible triad injuries is not influenced by viewing two-dimensional computed tomography

  • Eric M. Perloff;Tom J. Crijns;Casey M. O'Connor;David Ring;Patrick G. Marinello;Science of Variation Group
    • Clinics in Shoulder and Elbow
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    • v.26 no.2
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    • pp.156-161
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    • 2023
  • Background: We analyzed association between viewing two-dimensional computed tomography (2D CT) images in addition to radiographs with radial head treatment recommendations after accounting for patient and surgeon factors in a survey-based experiment. Methods: One hundred and fifty-four surgeons reviewed 15 patient scenarios with terrible triad fracture dislocations of the elbow. Surgeons were randomized to view either radiographs only or radiographs and 2D CT images. The scenarios randomized patient age, hand dominance, and occupation. For each scenario, surgeons were asked if they would recommend fixation or arthroplasty of the radial head. Multi-level logistic regression analysis identified variables associated with radial head treatment recommendations. Results: Reviewing 2D CT images in addition to radiographs had no statistical association with treatment recommendations. A higher likelihood of recommending prosthetic arthroplasty was associated with older patient age, patient occupation not requiring manual labor, surgeon practice location in the United States, practicing for five years or less, and the subspecialties "trauma" and "shoulder and elbow." Conclusions: The results of this study suggest that in terrible triad injuries, the imaging appearance of radial head fractures has no measurable influence on treatment recommendations. Personal surgeon factors and patient demographic characteristics may have a larger role in surgical decision making. Level of evidence: Level III, therapeutic case-control study.

Relationship among Bone Mineral Density, Body Composition, and Metabolic Syndrome Risk Factors in Females

  • Kim, Tai-Jeon;Cha, Byung-Heun;Shin, Kyung-A
    • Biomedical Science Letters
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    • v.16 no.3
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    • pp.169-177
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    • 2010
  • Osteoporosis is a disease that increases the fracture rates and a major cause of increased mortality and morbidity in the elderly people. This study is to determine which components of body composition and metabolic syndrome risk factors are important to bone health, we analysed the relationship among bone mineral density (BMD), body composition and metabolic syndrome risk factors in females. Totally 630 females participated in a medical check-up program (mean age 47 years) were selected for this study. Body composition analysis was performed by segmental bioelectrical impedance method, muscle mass, and percent body fat were measured. We also measured metabolic syndrome risk factors including abdominal obesity, HDL-cholesterol, triglyceride, blood pressure and fasting glucose level. Metabolic syndrome was defined by NCEP-ATP III criteria. The lumbar spine and femoral neck BMD were measured using the dual energy X-ray absorptiometry. Osteopenia and osteoporosis were observed in 180 and 51 persons, respectively. Muscle mass and HDL-cholesterol decreased in osteopenia and osteoporosis groups compared to the control group, and the grade was shown progressively by the symptoms. Significant positive correlation between BMD and muscle mass was observed. Multi variable regression analyses showed that % body fat and muscle mass were independent predictors of BMD after adjustment of age, height and weight. In conclusion, the BMD showed negative correlation with the metabolic and body composition was associated with BMD.