• 제목/요약/키워드: Logistic Model

검색결과 1,924건 처리시간 0.04초

초등교육에서 사이버가정학습 참여 저해요인 분석 (Analysis of Factors Hindering Learners' Participation in Cyber Home Study in Elementary Education)

  • 신현정;김성완
    • 한국컴퓨터정보학회논문지
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    • 제18권2호
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    • pp.175-182
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    • 2013
  • 이 연구는 초등교육에서 사이버가정학습의 참여를 저해하는 요인을 도출함으로써, 참여율 제고를 위한 시사점을 제시하는데 목적이 있다. 연구목적을 달성하기 위해 선행연구 분석을 통해 8가지 잠정적 저해요인(학습동기 및 태도의 문제, 컴퓨터에 대한 부담감, 컴퓨터 사용의 어려움, 새로운 학습방법의 어려움, 학습설계의 문제, 상호작용의 어려움, 화면설계의 문제, 환경상의 문제)를 도출하였다. 이를 바탕으로 총 33개 문항으로 구성된 설문지를 제작하여 사이버가정학습을 실시하고 있는 초등학생 429명을 대상으로 설문조사를 실시하였다. 수집된 자료의 로지스틱 회귀분석 결과, 초등교육에서 사이버가정학습 참여 저해에 영향을 주는 요인으로 컴퓨터에 대한 부담감과 새로운 학습방법의 어려움이 유의한 결과를 보였다. 이중에서 참여저해에 대한 영향력은 컴퓨터에 대한 부담감, 새로운 학습방법에 대한 어려움 순으로 나타났다. 즉, 컴퓨터에 대한 부담감과 새로운 학습 방법에 대한 어려움이란 문제가 클수록 사이버가정학습에의 참여를 더욱 저해하는 것으로 나타났다. 연구결과를 토대로 결론삼아 다음과 같은 초등사이버가정학습 참여율을 제고방안을 제안할 수 있다. 첫째, 초등교육에서 사이버가정학습의 참여 저해요인에 가장 큰 영향을 미치는 요인으로 지적된 '컴퓨터에 대한 부담감'을 줄이기 위해 학습자가 컴퓨터에 대한 두려움을 없애주고 컴퓨터가 학습에 유용하다고 느낄 수 있도록 '사전 컴퓨터교육'을 실시할 필요가 있다. 둘째, 사이버가정학습이 학교교육의 연장선상에서 인식될 수 있도록 학생들을 안내할 필요가 있다. 셋째, 초등학생을 대상으로 한 사이버가정학습 운영 시 컴퓨터에 대한 부담감이나 새로운 학습방법에 대한 어려움이 있는지 고려해 초등학생에 맞는 적절한 학습설계를 제공해야 한다.

한국 노인 식사의 탄수화물 에너지비와 채소섭취 빈도에 기초한 만성질환 위험성 평가: 2007-2009년 국민건강영양조사 자료 이용 (An Evaluation of Chronic Disease Risk Based on the Percentage of Energy from Carbohydrates and the Frequency of Vegetable Intake in the Korean Elderly: Using the 2007-2009 Korea National Health and Nutrition Examination Survey)

  • 서윤석;박민선;정영진
    • 대한지역사회영양학회지
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    • 제20권1호
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    • pp.41-52
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    • 2015
  • Objectives: Korean elderly people are known to consume diets high in carbohydrates low in vegetables compared to other age groups. This study evaluated the chronic disease risks and nutritional status in this group based on the percentage of energy from carbohydrates and the frequency of vegetable intake. Methods: Using the 2007~2009 Korean National Health Nutrition Examination Survey data, except those who were undergoing treatment for chronic disease, final 1,487 subjects aged 65 and older were divided into 4 groups: moderate carbohydrate energy ratio of 55~70% and low frequency of vegetable intake defined as less than 5 times per day (MCLV), moderate carbohydrate ratio and high frequency of vegetable intake more than 5 times (MCHV), high carbohydrate energy ratio above 70% and low frequency of vegetable intake less than 5 times (HCLV), and high carbohydrate ratio and high frequency of vegetable intake more than 5 times (HCHV). All data were analyzed after the application of weighted value, using a general linear model or logistic regression. Results: More than half of Korean elderly consumed diets with HCLV, and this group showed poor nutritional status and lower frequency of intake of most food items, but with no risk of chronic disease such as diabetes, obesity, hypertension, cardiovascular disease or anemia probably due to low intake of energy. On the contrary, MCHV group with a high percentage of energy from fat and protein showed the highest intake of energy and most nutrients, the highest frequency of intake of most of food items and a tendency of high risk of abdominal obesity, being followed by the MCLV group. Meanwhile, HCHV group showed a tendency of high risk of hypertension, followed by HCLV group with low frequency of intake of vegetables compared with the two moderate carbohydrate groups. Conclusions: The results suggested that the percentage of energy from carbohydrate and the frequency of vegetable intake affected the nutritional status, but not significantly affected the risk of chronic disease in Korean elderly. Further studies using more detailed category of % energy from carbohydrates and of type and amount of vegetables with consideration of individual energy intake level, excessive or deficient, are needed to confirm the results.

저출산의 요인분석과 사회복지적 함의 (A Study on the Factors Affecting Low Fertility and the Implication of Socal Welfare)

  • 이인숙
    • 한국사회복지학
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    • 제57권4호
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    • pp.67-90
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    • 2005
  • 본 연구는 저출산과 관련된 요인을 고찰하기 위해 인구학적 요인, 사회경제적 요인, 그리고 가치관적 요인으로 나누어 이들의 영향력을 분석하고 사회복지적 함의를 찾고자 하였다. 분석 결과 첫째, 현재 자녀수에 영향을 미치는 요인은 인구학적 변수 중에서는 결혼기간이, 사회경제적 변수 중에서는 소득수준이, 가치관 변수 중에서는 자녀의 필요성이 결정요인이었다. 둘째, 향후 출산 여부를 결정하는 요인은 인구학적 변수 중 결혼기간과 현재 자녀수, 그리고 첫 자녀의 성별이었고, 사회경제적 변수 중에서는 소득수준, 가치관 변수 중에서는 결혼의 필요성과 남아선호, 자녀에 대한 대리성취욕구 등이었다. 셋째, 자녀 출산을 연기하는 주요 요인은 자녀보육비 및 교육비 부담, 자녀를 안심하고 맡길 곳이 없음 등이었다. 이러한 결과를 통해 본 연구는 저출산 극복을 위한 사회복지적 측면에서 출산환경 조성의 중요성을 제기하며, 또한 인구정책을 비롯한 여성정책, 가족정책, 보육정책, 교육정책, 고용정책 등이 통합된 형태로 이루어지는 인구복지정책 개발의 필요성을 제기한다.

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범이론적모델을 이용한 교대근무 간호사의 운동행위 변화단계에 미치는 융합적인 영향요인 (Converged Influencing Factors on the Stages of Exercise Behavior Change of Nurses in Shift Work Using Transtheoretical Model)

  • 이혜경;정영진
    • 융합정보논문지
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    • 제7권6호
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    • pp.35-43
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    • 2017
  • 본 연구의 목적은 교대근무 간호사의 운동행위변화단계에 미치는 융합적 영향요인을 분석하는데 있다. 연구대상자는 병원에 근무하는 교대근무 간호사로 연구의 목적을 이해하고 연구에 참여할 것을 동의한 120명의 간호사이다. 연구 자료는 빈도, 백분율, 평균, 표준편차, t-test, $X^2$ test, 다중 로지스틱 회귀분석을 이용하여 분석하였다. 교대근무 간호사의 운동행위변화단계에 유의한 영향을 미치는 요인은 운동 동기(${\beta}=2.480$, p=.022), 건강상태 지각(${\beta}=1.151$, p=.013), 사회적지지(${\beta}=1.819$, p=.002)와 결혼유무(${\beta}=-1.820$, p=.004)로 나타났다. 즉, 운동행위 변화가 있는 대상자가 운동행위 변화가 없는 대상자에 비해 운동 동기가 11.9배 높고, 건강상태 지각은 3.1배 높았으며 사회적 지지는 6.1배, 미혼인 대상자는 기혼인 대상자에 비해 .16배 높았다. 그러므로 교대근무간호사의 운동행위 변화단계에 영향을 미치는 요인이 운동동기와 사회적지지, 건강상태 지각인 점을 고려하여 지속적이고 규칙적인 운동을 실천하기 위한 전략을 개발하는 것이 중요하다.

일부 보건소 내소 여성의 유방자가검진과 유방암 검진의 관련요인 (The Behavioral and Educational Factors Affecting the Breast Self-examination and Breast Cancer Screening)

  • 최종숙;박재용;한창현
    • 보건교육건강증진학회지
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    • 제18권1호
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    • pp.61-78
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    • 2001
  • The purpose of this research was to find out plans to promote the fulfillment of the breast self-examination and breast cancer screening, which is preventive health behavior about women's having breast cancer exam in some part of our country with searching for the primary causes which have an effect on their fulfillment. The subjects of the study were 540 literate volunteers who were of age from 20 to 69 and who visited 8 health centers in Taegu. The survey research was made through questionares in the 8 health centers in Taegu from the 15th to the 30th of September, 1998. Based on Becker's health belief model asking medical staff's opinions with bibliographies, the major findings from the survey was as follow. The fulfillment rate of the breast self-examination and the breast cancer screening was 37.8%(204 subjects), 27.6% (149 subjects) each. Getting breast self-exam varied significantly depending on subject's age, income of family, religion, occupation and the number of children. As far as the breast cancer screening was concerned, there was remarkably significant difference in accordance with their age, marital status, religion, occupation, income of family, the number of children, ways of nursing and parturition age of the first baby. The subjects in their forties accounted for the highest rate. Based on the fulfillment of the breast self-examination and the breast cancer screening, the average points of all the variables presented from the health belief as well as the points of the susceptibility, seriousness, benefits, knowledge and level of health concern of interest in health were significantly higher than the points of non-fulfillment of them in the statistical analysis whereas the barriers was lower than them. In consequence of the multiple-logistic regression analysis putting the breast self-examination and the breast cancer screening in dependent variables, occupation, knowledge, seriousness, benefits, barriers and cues to action had significant effects on breast self-examination against breast cancer. Looking more attainments, thinking diseases more seriously, feeling more usefulness and there being any patient around with breast cancer led to the higher rate of the breast self-examination against it. On the other hand, feeling more impedition as well as housewives caused the lower rate of it. The breast cancer screening was significantly affected by age, sensitivity, usefulness, impedition and behavior momentum as well. The cases who are older, feeling more sensitivity against breast cancer, more usefulness of the examination and where any patient around, the fulfillment rate was higher. Contrarily the more impedition they felt, the lower the fulfillment rate was. Accordingly, the study of the causes, which have significant effects on the fulfillment of the self-examination and the breast cancer screening in order to find it in an early stage, and the development of health education programs as well as proper education for public health through carrying on campaigns and stepping up public relations must be indispensable.

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거주지 주변의 식품환경과 비만의 관련성 연구: 2013 전국사업체조사와 2013-2014 국민건강영양조사 자료를 이용하여 (Associations between Exposure to Unhealthy Food Outlets Within Residential District and Obesity: Using Data from 2013 Census on Establishments and 2013-2014 Korea National Health and Nutrition Examination Survey)

  • 김윤정;한성림
    • 대한지역사회영양학회지
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    • 제21권5호
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    • pp.463-476
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    • 2016
  • Objectives: Environmental, social and personal factors influence eating patterns. This study aimed to investigate the relationship between unhealthy food outlets within a residential area and obesity using nationally representative Korean survey data and data from the Census on Establishments. Methods: Data on the food intakes and socioeconomic variables of a total of 9,978 adults aged ${\geq}19$ years were obtained from the 2013-2014 Korea National Health and Nutrition Examination Survey. Geographic locations of restaurants were obtained from the 2013 Census on Establishments in Korea. Administrative area was categorized into tertiles of count of unhealthy food outlets based on the distribution of number of unhealthy food outlets among all urban (Dong) and rural (Eup or Myun) administrative districts in Korea. Multilevel logistic regressions model were used to assess the association between the number of unhealthy food outlets and obesity. Results: People living in the district with the highest count of unhealthy food outlets had higher intakes of fat (45.8 vs. 44.4 g/day), sodium (4,142.6 vs. 3,949.8 mg/day), and vitamin A (753.7 vs. $631.6 {\mu}gRE/day$) compared to those living in the district with the lowest count of unhealthy food outlets. A higher count of unhealthy food outlets was positively associated with frequent consumption of instant noodles, pizza, hamburgers and sandwiches, sweets and sour pork or pork cutlets, fried chicken, snacks, and cookies. Higher exposure to unhealthy food outlets was associated with increased odds of obesity (1st vs. 3rd tertile; OR 1.689; 95% CI 1.098-2.599). Conclusions: A high count of unhealthy food outlets within a residential area is positively associated with the prevalence of obesity in Korea. The results suggest that food environmental factors affects the health outcomes and interventions aiming to restrict the availability of unhealthy food outlets in local neighborhoods may be a useful obesity prevention strategy.

Associations of serum levels of vitamins A, C, and E with the risk of cognitive impairment among elderly Koreans

  • Kim, Sung Hee;Park, Yeong Mi;Choi, Bo Youl;Kim, Mi Kyung;Roh, Sungwon;Kim, Kyunga;Yang, Yoon Jung
    • Nutrition Research and Practice
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    • 제12권2호
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    • pp.160-165
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    • 2018
  • BACKGROUND/OBJECTIVES: Korea is quickly becoming an aged society. Dementia is also becoming a vital public health problem in Korea. Cognitive impairment as a pre-stage of dementia shares most risk factors for dementia. The aim of the present study was to determine associations of serum levels of vitamins A, C, and E with the risk of cognitive impairment among elderly Koreans. SUBJECTS/METHODS: In this cross-sectional study, a total of 230 participants aged 60-79 years from Yangpyeong cohort were included. Cognitive function was assessed by the Korean version of the Mini-Mental State Examination for Dementia Screening. The logistic multivariable regression model was applied to determine the effect of serum vitamins A, C, and E on the risk of cognitive impairment. RESULTS: There was no significant association between the risk of cognitive impairment and serum levels of vitamin A and vitamin C. There was a significant odd ratio when the second tertile group of beta-gamma tocopherol level was compared to the first tertile group [odds ratio (OR) = 0.37, 95% confidence interval (CI) = 0.14-0.98, P for trend = 0.051]. In subgroup analyses, there were significant negative associations between beta-gamma tocopherol level and the risk of cognitive impairment in men (OR = 0.17, 95% CI = 0.03-0.87, P for trend = 0.028), non-drinkers or former drinkers (OR = 0.13, 95% CI = 0.02-0.66, P for trend = 0.025), and non-smokers or former smokers (OR = 0.27, 95% CI = 0.09-0.82, P for trend = 0.017). CONCLUSION: Serum beta-gamma tocopherol levels tended to be inversely associated with the risk of cognitive impairment. Further prospective large-scaled studies are needed to examine this association.

국내 양돈장의 차단방역 수준 평가 및 돼지써코바이러스 2형 감염의 위험요인에 관한 연구 (Assessing Biosecurity Practices on Commercial Pig Farms across Korea and Risk Factors for Porcine Circovirus Type 2 Infection)

  • 최성현;박선일
    • 한국임상수의학회지
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    • 제32권4호
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    • pp.324-329
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    • 2015
  • The primary aim of this study was to investigate biosecurity practices in pig farms and to determine the major risk factors associated with PCV2 infection for a sampled swine population in Korea. To this end, we analyzed data from a cross-sectional study of 296 farrow-to-finish farms, which was conducted between March and September 2014 to explore the prevalence of swine disease at farm level. Face-to-face interviews by on-site visit of trained veterinarians were conducted with the farm owners or managers using a standardized questionnaires with information about basic demographical data and management practices. Farms were classified as negative or positive through the use of infection profiles that combined data on serological testing including PCR antigen test result, antibody titer and sero-conversion pattern at each age category taking into account vaccination status. Data were analyzed using multivariate ordinal logistic regression. Results from this study indicated that biosecurity level of the farms was considered not good given low compliance of the biosecurity programs and facilities in the farm: off-site removal of dead stocks (7%), off-site location of storage facility for incoming feeds (12.6%), off-site pick-up location for finishers (19.3%), restrictions on feed supplier vehicles for farm entrance (19.6%), restriction of finisher trucks entering the farm (22.4%), and restriction on manure disposal trucks entering the farm (26.4%). In the final model (n = 255), allowance of finisher truck driver to the pig unit had increased risk of infection (OR = 2.4, 95% CI 1.22-4.67) whereas farms with a sign forbidding the entrance had decreased risk of infection (OR = 0.19, 95% CI 0.10-0.58). Further comprehensive research with larger sample size is required to better understand the multifactorial characteristic that some predisposing risk factors that were not available in this study. To the best knowledge of the authors, this was the first study to use empirical data to report risk factors associated with PCV2 infection in the Korean pig farms. Results from the current study could be used to decide optimal biosecurity measures to reduce the impact of PCV2 infection to farmers and policy makers.

한국인의 비만도에 따른 비만관련질환의 유병률 증가 (Increasing Prevalence of Obesity Related Disease for Koreans Associated with Overweight and Obesity)

  • 문옥륜;강재헌;이상이;정백근;이신재;윤태호;황경화;김남순
    • Journal of Preventive Medicine and Public Health
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    • 제34권4호
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    • pp.309-315
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    • 2001
  • Objective : To develop a boner understanding of the relationship between weight status and the prevalence of obesity related diseases in the Korean population. Methods : The 1998 Korean National Health and Nutrition Survey was used and 10,880 persons who had previously taken health examinations were selected for study. The Korean Society for the Study of Obesity's classification of weight status was used. Hypertension, diabetes mellitus, dyslipidemia, osteoarthritis, chronic heart disease, stroke were included as obesity related disease. A logistic regression model was developed to estimate the prevalence odds ratio by obesity class adjusted for demographic and socioeconomic factors and we converted the odds ratio to a prevalence ratio using the base line prevalence of disease to aid in the interpretation of the ratios. Results : The prevalence of obesity was 26.3% based on the KSSO classification $(BMI\geq25)$. A graded increase in the prevalence ratio was observed with increasing severity of overweight and obesity for all health outcomes with the exception of chronic heart disease in men and stroke in both men and women. With normal weight individuals as the reference, for men who were younger than 50 years, the prevalence ratios were highest for hypertension BMI<23-25: 1.70(95% CI=1.41-2.05), 25$BMI\geq30$: 4.83(95% CI=3.70-5.84). The prevalence ratios for dyslipidemia were as high as hypertension, but were lower than hypertension for diabetes mellitus and osteoarthritis. Prevalence ratios generally were greater in younger adults. The prevalence of having 2 or more obesity related diseases increased with weight status category, except in people who were older than 50 years. Conclusions : Based on results, obesity is an increasingly important health problem in Korea and the disease burden increases according to weight status. For Korean adults, the strongest relationship was seen between weight status and hypertension and dyslipidemia. In older people the impact of excess weight and obesity is stronger than that seen in younger people. Increased efforts in the study of obesity and prevention and treatment of obesity and obesity related disease are required.

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암 환자가 느끼는 경제적 도움에 대한 필요와 이에 영향을 미치는 요인 (Cancer patients' need for financial assistance and its related factors)

  • 김윤구;박재현;박종혁
    • 보건행정학회지
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    • 제20권4호
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    • pp.58-73
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    • 2010
  • Background : Cancer is a disease that not only places a significant burden on patients clinically but also requires significant expense for diagnosis and treatment. Although the cancer coverage of health insurance has recently been expended, the need for financial assistance among cancer patients and their families is still expected to be significant. In this study, cancer patients' need for financial assistance in Korea was examined and its influence factors were analyzed. Methods : Target study subjects were those who are over 18 years of age and were diagnosed with cancer more than four months prior at the National Cancer Center and 9 Regional Cancer Centers in Korea during the period from July to August of 2008. Quarter sampling was conducted according to the ratio of the type of each cancer. A face to face interview survey was conducted. A total of 2,661 cancer patients finished the survey. Medical charts were reviewed in order to obtain the cancer type and SEER stage of cancer patients. An ordered logistic regression model was used to examine the level of need for financial assistance according to the demographical, clinical, and socio-economic variables of cancer patients. Result : The percentage of cancer patients who needed financial assistance was 69.0%, and 36.9% needed significant financial assistance. The need for financial assistance was perceived to be greater in males, younger age group, low income group, low education group, medical aid recipients, those who were diagnosed recently, those with a low level of quality of life measured through EQ5D, and those with decreased income after cancer diagnosis. Conclusion : In spite of the current policy to increase health insurance coverage, the majority of cancer patients and their families in Korea still need financial assistance due to cancer. In particular, there were more vulnerable groups, such as the low income, or low education group. In the future, policies that focus on the disadvantaged, which strengthen social security, should be considered for achievement of a substantially better quality of life for cancer patients and their families.