• Title/Summary/Keyword: Logistic Loss

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A Study on Drone's Liability on Flight in South Korea

  • Kwak, Young-Am
    • Journal of Distribution Science
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    • v.14 no.3
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    • pp.5-10
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    • 2016
  • Purpose - This paper analyzed the accident of drone and related insurance goods which can be coverable with regard to drone accident. The study range is limited in the owner's care, custody, and the control of drone in South Korea, but military area and law and regulation of the drone would be exceptional. Research design, data, and methodology - With regard to drone's flight, drone can make possible risks and can give severe damage to the people. To carry out this research, literature survey and review such as journal, thesis and publications were adopted. Results - As for the insurance coverage from drone's accident involved in the purpose of business, insurance coverage depends on 'commercial general liability insurance'. However, in case of personal hobby including leasure intention, insurance coverage depends on 'living liability insurance'. Conclusions - From a drone's accident, operator and owner of the drone may face the property damage to the drone itself, and then can give severe damage or loss to the people such as physical injuries and property damage. Peoples should be concerned about having the awareness of drone's accident with insurance coverage.

Analysis of the Prevalence and Risk Factors of Malnutrition among Hospitalized Patients in Busan

  • Lee, Ha-Kyung;Choi, Hee-Sun;Son, Eun-Joo;Lyu, Eun-Soon
    • Preventive Nutrition and Food Science
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    • v.18 no.2
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    • pp.117-123
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    • 2013
  • This study investigated the prevalence of and risk factors for malnutrition in hospitalized patients in Busan, Republic of Korea. 944 patients (440 men and 504 women) were hospitalized in four Busan general hospitals from March through April, 2011. Nutritional status was assessed on admission by the Nutritional Risk Screening 2002. Data were collected from the electronic medical records system for the characteristics of the subjects, clinical outcomes, biochemical laboratory data, and nutrition support states. Clinical dietitians interviewed the patients using structured questionnaires involving data on weight loss and problems related to oral intakes. Malnourished patients were significantly older (P<0.001) than well-nourished patients, but the values for BMI, serum albumin, total cholesterol, TLC, hemoglobin, and hematocrit were significantly lower (P<0.001) for malnourished than for well-nourished patients. Logistic regression indicated that the main determinant factors for nutritional status were the age, length of stay, BMI, serum albumin, and total cholesterol. In order to increase therapeutic effects of hospitalized patients, clinical dietitians need to offer proper nutritional intervention based on the results of nutrition assessment and identification of malnutrition.

Factors Contributing to Low Weight in Community-Dwelling Older Adults (지역사회 거주 노인의 저체중 영향요인)

  • Kim, Jung-Soon;Kim, Yun-Hee;Yu, Jung-Ok
    • Research in Community and Public Health Nursing
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    • v.22 no.4
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    • pp.429-437
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    • 2011
  • Purpose: The purposes of this study were to describe the prevalence of low weight and to investigate related factors contributing to low weight in community-dwelling older adults. Methods: From the database of the Fourth Korean National Health and Nutrition Examination Survey (KNHANES-IV), the researchers selected 2,964 older adults aged over 65. The original study was a population-based epidemiological survey of health and nutrition with a stratified multistage clustered probability design. Data were analyzed using ${\chi}^2$-test and multiple logistic regression with the SPSS/WIN 18.0 program. Results: The prevalence of low weight in older adults was 4.7%. The prevalence of low weight was different according to demographic characteristics. That is, the rate was higher in male elders, older ones, and rural residents. In the cases of current smoking, frequent alcohol consumption and no chronic disease, the prevalence of low weight was higher. Age, gender, area of residence, and current smoking were found to be contributing factors to low weight in community-dwelling older adults. Conclusion: The result of this study provides important insights into possible reasons for low weight in community- dwelling older adults and suggests that low weight should be considered in promoting older adults' health.

Relative Effects of Health and Family Factors on Geriatric Depression (노인 우울에 영향을 미치는 요인: 건강요인과 가족요인의 상대적 영향력을 중심으로)

  • Lee, Mee-Ae
    • The Korean Journal of Community Living Science
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    • v.22 no.4
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    • pp.623-635
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    • 2011
  • Over the past few decades, the proportion of elderly people with depression in Korea has been rapidly increasing. The purpose of this study is to explore relative effects of health and family factors on geriatric depression. The data sources are from Korean Longitudinal Study of Aging(2008). The Analysis sample consists of 4,040 cases. Analysis results show that there is a significant variability in geriatric depression according to sociodemographic characteristics, health characteristics, and family characteristics. Hierarchical logistic regression analyses are employed to assess the causal relationship between health characteristics and geriatric depression. Model II showed that ADL(exp(B)=1.732), having difficulties due to sight deterioration(exp(B)=1.398), having difficulties due to masticatory force deterioration(exp(B)=1.414), having difficulties due to pain(exp(B)=2.435), and subjective health status(exp(B)=2.010) are reported as predictors of geriatric depression. Namely, the probability of having geriatric depression of the above predictors has been 1.7 times, 1.4 times, 1.4 times, 2.4 times. 2.0 times higher than normal figures. Among health characteristics, pain is the most prevalent factor. Model III showed that as for family characteristics, coresiding with children(exp(B)=1.312) and frequency of contacting with children by phones, letters, or emails(exp(B)=1.477) are reported as predictors of geriatric depression. Key findings are that health factors have larger effects than family factors on geriatric depression.

Predictors of Clinical Nurses' Presenteeism (임상간호사의 프리젠티즘 영향요인)

  • Kim, Miji;Choi, Hyang Ok;Ryu, Eunjung
    • Korean Journal of Occupational Health Nursing
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    • v.23 no.3
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    • pp.134-145
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    • 2014
  • Purpose: The purpose of this study was to identify factors affecting clinical nurses' presenteeism. Methods: A descriptive cross-sectional design was used in which participants completed self-report questionnaires that consisted of measures for nurses' job satisfaction, job stress, professionalism and presenteeism. 267 nurses working in general hospital participated in this study. Logistic regression analysis was used to estimate predictors of the presenteeism in clinical nurses. Results: 250 nurses experienced one or more health problems last one month. The group who experienced presenteeism during the last one year had significant differences in professionalism and perceived productivity. Predictors of sickness presenteeism in clinical nurses included work experience, total health problem and last 1 year absenteeism. Last 1 year absenteeism and total health problem were strongly related to presenteeism in clinical nurses. Conclusion: Major findings of this study indicated that in dealing with nurses' presenteeism, not only managing nurses' job stress and job satisfaction but also providing flexible work schedule and increasing staffing level as an organizational approach are necessary to be considered. Further repeated and expanded research is needed to explore the multidimensional aspects of nurses' presenteeism including a broad range of work setting and the influence of Korean nurses' organizational culture on presenteeism.

Adoption Factor Prediction to Prevent Euthanasia Based on Artificial Intelligence

  • KIM, Song-Eun;CHOI, Jeong-Hyun;KANG, Minsoo
    • Korean Journal of Artificial Intelligence
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    • v.9 no.1
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    • pp.29-35
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    • 2021
  • In this paper, we analyzed the factors of adoption and implemented a predictive model to activate the adoption of animals. Recently, animal shelters are saturated due to the abandonment and loss of companion animals. To address this, we need to find a way to encourage adoption. In this paper, a study was conducted using two data from an open data portal provided by Austin, Texas. First, a correlation analysis was conducted to identify the attributes that affect the result value, and it was found that Animal Type Intake, Intake Type, and Age upon Outcome influence the Outcome Type with correlation coefficients of 0.4, 0.26, and -0.2, respectively. For these attributes, the analysis was conducted using Multiclass Logistic Regression. As a result, dogs had a higher probability of Adoption than cats, and animals subjected to euthanasia were more likely to adopt. In the case of Public Assist and Stray, it was found that the Missing rate was high. Also, the length of stay for cats increased to 12.5 years of age, while dogs generally adopted smoothly at all ages. These results showed an overall accuracy of 62.7% and an average accuracy of 91.7%, showing a fairly reliable result. Therefore, it seems that it can be used to develop a plan to promote the adoption of animals according to various factors. Also, it can be expanded to various services by interlocking with the webserver.

Factors Affecting Suicide Attempt of the Elderly (노인의 자살 시도에 영향을 미치는 요인)

  • Bae, Jinhee;Um, Kiwook
    • 한국노년학
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    • v.29 no.4
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    • pp.1427-1444
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    • 2009
  • The purpose of this study was to examine the prevalence of the suicide ideation, plan and attempt and to examine factors affecting the suicide attempt of the elderly. For these purposes, 1,110 elderly in Chonbuk province were interviewed using structured questionaire. Logistic regression analyses were used to test the association among factors. Major finding of this study are as follow : First, the prevalence of the suicide ideation, plan and attempt was 20.2%, 5.7%, 3.6%. Second, factors for suicide attempt were male sex, the living alone aged, loss of role as a worker, emotional abuse and neglect from family. On the basis of these results, implications for policy and practice are suggested for prevention the suicide of the elderly.

Effects of denture use on the quality of life of cancer patients over 40 years of age: The 6th-7th Korea National Health and Nutrition Examination Survey (2013-2018) (40세 이상 암 환자의 의치 사용이 삶의 질에 미치는 영향 :국민건강영양조사 제6-7기(2013-2018년) 자료 이용)

  • A-Jung Lee;Mi-Ra Lee;Min-Kyung Kang
    • Journal of Korean society of Dental Hygiene
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    • v.24 no.2
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    • pp.141-148
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    • 2024
  • Objectives: The purpose of this study was to investigate the effect of denture use on the quality of life of cancer patients aged ≥40 years. Methods: Data from the National Health and Nutrition Examination Survey (2013-2018) were used in this study. A total of 302 individuals were selected as the final study participants. Data were analyzed using the chi-square test and logistic regression analysis using SPSS software. Results: The quality of life in the group with dentures was lower than that in the group without dentures. Conclusions: The use of dentures had a significant effect on the quality of life of cancer patients aged ≥40 years. Therefore, national dental care guidelines and policies should be developed to prevent an increase in tooth loss in patients with cancer.

Factors Associated with Dizziness in Korean Adults (한국 성인의 어지럼 경험과 관련 요인)

  • Seo, Yeong-Mi;Lee, Eun Sook
    • Journal of muscle and joint health
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    • v.31 no.1
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    • pp.53-63
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    • 2024
  • Purpose: This study aimed to determine the prevalence of dizziness in adults and to identify factors associated with dizziness. Methods: This cross-sectional study used secondary data from the Eighth Korea National Health and Nutrition Examination Survey. Participants included 10,265 older adults aged≥40 years. Data were analyzed using descriptive statistics, the chi-squared test, and multinomial logistic regression with the SPSS/WIN 27.0 program. Results: The prevalence of dizziness was 26.2%, with 20.9% reporting episodic dizziness and 5.3% reporting chronic dizziness. Compared to that noted in the control group participants without dizziness, the risk of episodic or chronic dizziness was higher in women and in participants with older age, low education level, low income level, high perceived stress level, depression, tinnitus, and occupational noise exposure. Moreover, the risk of chronic dizziness was higher among those with a body mass index of <25 kg/m2, stroke, cardiovascular disease, or severe hearing loss. Conclusion: The study underscores the need to comprehensively identify risk factors associated with dizziness and to develop interventions to prevent and manage the occurrence and chronicity of dizziness in the general population.

Association between hearing loss and high-sensitivity C-reactive protein: the Kangbuk Samsung Cohort Study

  • Jihoon Kim;Yesung Lee;Eunhye Seo;Daehoon Kim;Jaehong Lee;Youshik Jeong;Seonghyun Kwon;Jinsook Jeong;Woncheol Lee
    • Annals of Occupational and Environmental Medicine
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    • v.35
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    • pp.38.1-38.10
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    • 2023
  • Background: Hearing loss (HL) is linked to an elevated risk of cardiovascular diseases (CVDs). The pathogeneses of HL and CVD commonly involve inflammatory responses. Previous studies investigated elevated levels of inflammatory biomarkers in subjects with HL, however, their findings did not demonstrate statistical significance. In our cross-sectional and longitudinal study, we investigated the correlation between HL and increased high-sensitivity C-reactive protein (hsCRP) levels to determine how HL is associated with CVDs. Methods: We conducted a cross-sectional study with workers aged over 18 years who underwent health check-ups at our institution between 2012 and 2018 (n = 566,507), followed by conducting a longitudinal study of workers aged > 18 who underwent health checkups at least twice at our institution between 2012 and 2018 (n = 173,794). The definition of HL was as an average threshold of ≥ 20 dB in pure-tone air conduction at 0.5, 1.0, and 2.0 kHz in both ears. The incidence of increased hsCRP levels throughout the follow-up period was defined as a level exceeding 3 mg/L. Logistic regression and generalized estimating equations were performed to estimate the risk of increased hsCRP levels according to the occurrence of HL in groups stratified by age. Results: In the cross-sectional study, the multivariate-adjusted odds ratio (OR) was 1.17 (95% confidence interval [CI]: 1.02-1.34); the OR was 0.99 (95% CI: 0.80-1.22) in those under 40 and 1.28 (1.08-1.53) in those over 40. In the longitudinal study, the multivariable-adjusted OR was 1.05 (95% CI: 0.92-1.19); the OR was 1.10 (95% CI: 0.90-1.35) in those under 40 and 1.20 (1.01-1.43) in those over 40. Conclusions: This cross-sectional and longitudinal study identified an association between HL and increased hsCRP levels in workers aged over 40 years.