• 제목/요약/키워드: multinomial logistic analysis

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Drinking Patterns Among Korean Adults: Results of the 2009 Korean Community Health Survey

  • Ryu, So Yeon;Crespi, Catherine M.;Maxwell, Annette E.
    • Journal of Preventive Medicine and Public Health
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    • 제46권4호
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    • pp.183-191
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    • 2013
  • Objectives: In Korea, the proportion of deaths due to alcohol is estimated at 8.9%, far exceeding the global estimate of 3.8%. Therefore, this study was performed to examine the factors associated with low-risk, moderate-risk, and high-risk drinking patterns in Korean adults and to identify target populations for prevention and control of alcohol-related diseases and deaths. Methods: We analyzed data from 230 715 Korean adults aged 19 years and older who participated in the 2009 Korean Community Health Survey. Multinomial logistic regression analysis was used to examine associations between socio-demographic and health-related factors and patterns of alcohol use. Results: A substantially larger proportion of men than women engaged in high risk (21.2% vs. 3.4%) and moderate-risk alcohol use (15.5% vs. 8.2%). In both sexes, moderate- and high-risk uses were associated with younger age, higher income, being currently employed, smoking, being overweight/obese, and good self-rated health. Conclusions: Given the large proportion of the population that is engaging in moderate- and high-risk drinking and given the social norms that support this behavior, public health policies and campaigns to reduce alcohol consumption targeting the entire population are indicated.

마케팅 데이터를 대상으로 중요 통계 예측 기법의 정확성에 대한 비교 연구 (A Comparative Study on the Accuracy of Important Statistical Prediction Techniques for Marketing Data)

  • 조민호
    • 한국전자통신학회논문지
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    • 제14권4호
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    • pp.775-780
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    • 2019
  • 미래를 예측하는 기법은 통계에 기반을 둔 것과 딥러닝에 기반을 둔 기술로 분류할 수 있다. 그중 통계에 기반을 둔 것이 간단하고 정확성이 높아서 많이 사용된다. 하지만 실무자들은 많은 분석기법의 올바른 사용에 어려움이 많다. 이번 연구에서는 마케팅에 관련된 데이터에 다항로지스틱회귀, 의사결정나무, 랜덤포레스트, 서포트벡터머신, 베이지안 추론을 적용하여 예측의 정확성을 비교하였다. 동일한 마케팅 데이터를 대상으로 하였고, R을 활용하여 분석을 진행하였다. 마케팅 분야의 데이터 특성을 반영한 다양한 기법의 예측 결과가 실무자들에게 좋은 참고가 될 것으로 생각한다.

Personal Remittances: An Empirical Study in Oman

  • UDDIN, Mohammed Ahmar;ALAM, Md. Shabbir
    • The Journal of Asian Finance, Economics and Business
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    • 제8권3호
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    • pp.917-929
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    • 2021
  • This study highlights the importance of remittance, the factors which affect the percentage of income remitted, and the investment options available to reduce remittance. For the year 2019, the remittances from Oman totaled $9.1 billion. Oman was among the top remitters with remittance to gross domestic product (GDP) ratio of 11.9%. A survey was conducted on 300 resident expats in Oman. The descriptive analysis shows that the maximum remittance percentage is between 21%-40% of income. The multinomial logistic regression results show that outward remittance depends on gender, age, occupation, number of dependent in Oman, and the number of dependent in the home country. Regarding investment, the most preferred investment option is business, followed by real estate and financial services. Age and education are found to affect investment options. This paper tries to fill the literature gap, especially for the case of Oman, by exploring what determines the level of remittance and the preferred choices for retaining funds. This study adds to the existing literature, as no previous study is available regarding how personal factors can influence the level of remittance and investment in a small oil-exporting developing country like Oman. The study will be helpful to policymakers and academicians in devising policies to retain and invest the outwards remittances in Oman.

Mobilizing Informal Economic Sector to Uphold Urban Institutional Resilience: A Case Study of Rawalpindi, Pakistan

  • RIAZ, Tayyaba;WAHEED, Abdul;ALVI, Shahzad
    • The Journal of Asian Finance, Economics and Business
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    • 제9권5호
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    • pp.397-407
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    • 2022
  • The informal economy is a large part of the urban economy. The informal economy accounts for about half of Pakistan's GDP. This research examined nine different areas of Rawalpindi's Central Business District's business sector (CBD). A survey of 404 respondents from 16 CBD marketplaces enables a comprehensive examination of who works in the informal and formal economic sectors, how much they earn, their goals, perception of their job, and their degree of similarity to the rest of the working population. Furthermore, the statistics illustrate the pro-cyclical connections between the informal economic sector and the formal economy. The Multinomial Logistic Regression (MLR) technique is used for the analysis. The MLR results indicated the informal economic sector holds positive relation with earning members in a family, business expertise, average business sale, and negative relation with education level, satisfaction with government tax policies, household expense, and average investment in the business. From a resilience standpoint, governance is considered an intentional collective action to preserve a stable system condition. Hence, the current study recommends tax reforms and government institution reorganization to mobilize the informal sector and make effective institutional governance.

Impact of litter on femur and tibial morphology, bone biomechanics, and leg health parameters in broiler chickens

  • Komal Khan;Mehmet Kaya;Evrim Dereli Fidan;Figen Sevil Kilimci
    • Animal Bioscience
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    • 제36권9호
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    • pp.1393-1402
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    • 2023
  • Objective: In this study effects of three types of beddings on broiler leg health and bone biomechanics were evaluated. Methods: A total of 504 male chicks (Ross 308) were randomly placed on three beddings (4 replicates/group; 42 birds/pen), zeolite-added litter (ZL), plastic-grid flooring (PF), and wood shavings (WS). On day 42, chickens were weighed, slaughtered, and samples (bone, muscle, and drumstick) were collected. Bones were subjected to leg health tests, morphometric measurements, biomechanical testing, and ash analysis. Results: Broilers in PF and WS groups showed higher live weight than the ZL group (p<0.001), and the incidence of tibial dyschondroplasia (TD) and varus valgus deformity due to distal bending was significantly higher in PF (p<0.001). Multinomial logistic regression showed that bedding has a significant (p = 0.038) contribution toward the development of TD. Tibial strength (p = 0.040), drumstick width (p = 0.001), and total femur and epiphyseal ash contents (p = 0.044, 0.016) were higher in the ZL group. Chicken live weight was correlated with tibial length and weight (r = 0.762, 0.725). Conclusion: Flooring and the type of bedding material directly affect broiler bone length, strength and leg health. Plastic bedding improves the slaughter weight of chickens on the expense of leg deformities, and zeolite litter improves leg health and bone strength.

녹색생활관련 인지정도가 녹색소비행동에 미치는 영향 연구 (The Effect of Cognition Degree of Green Life on Green Consumer Behavior)

  • 정주원;조소연
    • 한국환경과학회지
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    • 제23권8호
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    • pp.1455-1462
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    • 2014
  • The purpose of this study is to examine green consumer behavior (green product purchasing behavior and green consumption life) affected by demographical characteristics, and cognition degree of green life (cognition of a green indicator, a green life catalyst system, and environmental problems). It's also to promote strategy and suggest effective activation plans for the vitalization of green consumer behavior. To carry out the task, verification of credibility, multiple regression analysis, two-step cluster analysis, and multinomial logistic analysis were used. The results are as follows: First, the factors that effect green product purchasing behavior were gender, age, cognitive of a green indicator, carbon points system, electricity peak hour system, and seriousness of environmental damage due to lifestyle. Second, the factors that effect green lifestyle were gender, age, carbon grade indicator system, cognition of a green system, and the seriousness of environmental damage due to lifestyle. Third, the comparative group characteristic analysis showed low rates for careless green consumer behavior groups compared to the passive green consumer behavior groups in cognition of a green indicator, green system, and environmental problems. For active green consumer behavior groups, the analysis showed high rates in cognition of carbon grades, eco-labeling, electricity peak hour system, and environmental damage due to lifestyle. In order to encourage green consumer behavior, it's evident that cognition of a green indicator, a green life catalyst system, and environmental problems need to be improved through strategic education and continuous encouragement.

잠재프로파일 분석을 이용한 대학생활 만족유형 분류 및 영향요인 분석 (Analysis of Student's Satisfaction Types of the Campus-Life and Affecting Factors using Latent Profile Analysis)

  • 유호준;길혜지;나민주
    • 한국콘텐츠학회논문지
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    • 제22권8호
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    • pp.482-491
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    • 2022
  • 본 연구는 대학생의 대학생활 만족유형을 분류하고 그 영향요인을 분석하는 데 목적이 있다. 이를 위해 도지역 소재한 A 국립대학 재학생을 대상으로 매년 실시되는 대학생활 및 교육경험 실태조사 자료를 활용하였다. 그리고 잠재프로파일 분석을 실시하여 유형을 분류하고 각 유형 분류에 영향을 미치는 요인을 파악하기 위해 다항 로지스틱 회귀분석을 실시하였다. 분석결과, 대학생의 대학생활 및 교육경험 만족에 대한 잠재프로파일은 4개의 집단 즉, '평균 만족형(44.4%)', '수업 만족형(42.5%)', '최고 만족형(3.2%)', '관계 만족형(9.9%)'으로 분류되었다. 그리고 평균 만족형을 참조집단으로 하여 나머지 3개 유형으로의 분류에 영향을 미치는 요인을 탐색한 결과 성별, 학년, 입학전형, GPA 성적등급 모든 유의한 영향을 미치는 것으로 나타났다. 이러한 결과를 바탕으로, 본 연구는 대학 차원에서 학생맞춤형교육, 학생지원정책을 기획 및 추진하는 데 시사점을 제시하였다.

연인관계에서의 집착과 반추적 반응이 데이트 폭력에 미치는 영향 (Influence of Limerence and Ruminative Response on Dating Violence in Romantic Relationship)

  • 정구철
    • 한국콘텐츠학회논문지
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    • 제17권11호
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    • pp.479-490
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    • 2017
  • 본 연구에서는 연인관계에서 나타나는 데이트 폭력과 집착행동 및 반추적 반응 간의 관계를 분석하였다. 연구 대상은 연애 경험이 있는 대학생 205명이며, 평균 연령은 22.1세였다. 분석 방법은 상관관계분석, 분산분석, 2단계군집분석, 다항로지스틱 회귀분석이었다. 연구 결과는 다음과 같다. 첫째, 집착 피해군과 가 피해군은 일반군보다 자책적 반추 반응이 유의하게 높았다. 둘째, 데이트 폭력 피해군과 가 피해군은 일반군보다 모든 반추적 반응의 하위요인이 유의하게 높았다. 셋째, 자책적 반추 반응은 데이트 폭력에 유의한 정적 설명변수로 나타났다. 넷째, 집착 피해경험은 데이트 폭력의 피해집단으로 분류될 승산비를 유의하게 3.3배 높였고, 데이트 폭력 가 피해군으로 분류될 확률은 10.9배나 높았다. 이러한 연구결과를 바탕으로 데이트 폭력에 대한 집착과 반추사고의 중요성을 논의하였다.

8체질(體質) 설문지(說問紙)의 타당도(妥當度), 신뢰도(信賴度)에 관한 연구(硏究) (A Study on the Validity and Reliability of the Eight-Constitution Questionnaire)

  • 민재영;김민용;박영재;박영배
    • 대한한의진단학회지
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    • 제11권2호
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    • pp.27-44
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    • 2007
  • Background: Eight-Constitution Medicine (ECM) classifies the human body into eight constitutions. Diagnosis of discrimination of the eight constitutions depends on a unique pulse diagnosis. However, pulse diagnosis is subjective and requires vigorous training. Objectives: This study aims to analyze the validity and reliability of the Eight-Constitution Questionnaire as a diagnostic method. Methods: Participants of this study were outpatients in six ECM clinics located in Seoul. The resources were collected from 409 patients who were classified into one of the eightconstitutions according to their pulse types and their responses to constitution-acupuncture therapy. SPSS 13.0 for Windows was used for statistical analysis: factor analysis, reliability analysis, independent sample t-test, and multinomial logistic regression were used to verify the results. Results and Conclusions: 1. The proportion of participants' constitutions is in the order of Pancreotonia (23.7%), Colonotonia (19.8%), Pulmotonia (18.1%), Hepatonia (16.9%), Vesicotonia (8.1%), Cholecystotonia (7.3%), Renotonia (5.3%) and Gastrotonia (0.7%). 2. Sevencomponents and 74 items were selected through factor factor and relaibility analysis performed on about 251 items. 3. The firstcomponent's mean is significantly higher in Pancreotonia than that in other constitutions (p<0.05). The second is in Pulmotonia and Colonotonia, whereas the third is in Hepatonia and Cholecystotonia. Fifth is in Vesicotonia, the sixth is in Colonotonia, and the fourth and seventh are not significant in specific constitutions. 4. The percentage that Pancreotonia is correctly predicted is 96.9%, Pulmotonia is 91.9%, Colonotonia is 91.4%, Hepatonia is 88.4%, Vesicotonia is 81.8%, Gastrotonia is 66.7%, Renotonia is 66.7%, Choleeystotonia is 30.0%, and the total percentage is 85.3%.

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빈곤계층의 소비패턴에 관한 연구 : 2007년과 2008년의 변화 비교 (A Study on the Consumption Patterns of Poor Households)

  • 정원오;이선정
    • 사회복지연구
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    • 제42권1호
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    • pp.305-331
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    • 2011
  • 본 연구는 빈곤가구의 소비패턴이 단일 유형이 아니라 여러 유형으로 나타나고 있으며, 그러한 차이에 어떤 요인들이 관련되어 있는지 분석하였다. 연구결과 빈곤계층을 하나의 소비유형으로 단순화 할 수 없으며, 사회 환경의 변화에 따라 필수품의 목록이 변화하였고, 변화의 양상은 라이프사이클이 상이한 가구원의 구조에 영향을 받는 것으로 파악되었다. 소비패턴의 유형은 여섯가지로 분류되었는데, 각각은 교육비지출형, 식료품지출형, 사회적관계지출형, 교통통신비지출형, 의료비지출형, 주거비지출형으로 명명할 수 있었다. 각 소비패턴유형에 영향을 미치는 요인을 분석하기 위하여 다항로짓분석을 실시한 결과 빈곤가구의 경제적 특성보다는 가구특성, 가구주특성, 사회적 특성이 유의미한 영향을 미치는 것으로 확인되었다. 연구결과 빈곤가구의 다양한 욕구를 확인했고, 소비패턴의 영향 요인이 경제적인 요인보다는 가구의 인구사회학적 요인이 더 큰 영향을 미치고 있음을 감안할 때, 한시적인 소득지원에 무게를 두고 있는 한국의 빈곤정책은 가구의 욕구에 기초하여 다양하게 접근해야 할 필요성이 있다.