• 제목/요약/키워드: ${\chi}^2$-test

검색결과 3,346건 처리시간 0.029초

타이치 운동이 중년여성의 대사증후군 위험인자 및 건강관련 삶의 질에 미치는 영향 (The Effects of the Tai Chi Exercise on Metabolic Syndrome and Health-related Quality of Life in Middle-aged Women)

  • 엄애용
    • 근관절건강학회지
    • /
    • 제19권2호
    • /
    • pp.152-160
    • /
    • 2012
  • Purpose: The purpose of this study was to test the effects of the Tai Chi exercise on metabolic syndrome and health-related quality of life in middle-aged women. Methods: A quasi-experimental design was used. Subjects were sixty middle-aged women with metabolic syndrome. All of the subjects were met the criteria of the National Cholesterol Education Program-Adult Treatment Panel III (NCEP-ATP III). The subjects were divided into the experiment group (n=33) trained the Tai Chi for 12 weeks and the control group (n=27). Metabolic syndrome risk factors including blood pressure, waist circumference, glucose, triglyceride (TG), and high density lipoprotein cholesterol (HDL-C) were measured before and after the 12-week period. Euro Quality of Life Questionnaire 5-Dimensional Classification (EQ-5D) was used to evaluate the health-related quality of life. Results: The experiment group showed significant decreases in diastolic blood pressure, waist circumference, glucose, and TG; and increase in HDL-C compared to the control group. For the health-related quality of life evaluation, the experiment group showed significant improvement more than the control group. Conclusion: The Tai Chi exercise may be effective intervention in preventing cardiovascular disease caused by metabolic syndrome in middle-aged women.

The Impact of Consumer Ethnocentrism on Purchase Intention: An Empirical Study from Vietnam

  • NGUYEN, Thanh Ngoc Dan;DANG, Phuong Nhu;TRAN, Phu Hoang;NGUYEN, Trang Thi Thuy
    • The Journal of Asian Finance, Economics and Business
    • /
    • 제9권2호
    • /
    • pp.427-436
    • /
    • 2022
  • Ethnocentrism in users plays an important role in predicting user behavior when deciding between imported and domestic goods. The purpose of this study is to look into the influence of ethnocentrism in customer behavior on brand image, perceived value, perceived quality, brand trust, and brand buy intention. Vietnamese customers prefer homegrown brands. The moderate role of consumer ethnocentrism in the conceptual framework emphasizes the country origin of the product is the most important factor. It also demonstrates how the intention of Vietnamese consumers to buy domestic brands is substantially influenced. To test the hypothesis, this article used a quantitative technique utilizing PLS-SEM software. With 917 samples, the study used the quota sampling approach to collect data from students at 10 universities in Ho Chi Minh City. The data suggest that all players have a positive association and that consumer ethnocentrism has a moderate impact in the Vietnamese brand context. Following that, suggestions are made to help Vietnamese firms create and retain their brands in the face of severe competition from global brands in the domestic market. To increase consumer intent in purchasing behavior, the Vietnamese local company needs to establish a strong brand.

Empirical Comparisons of Disparity Measures for Three Dimensional Log-Linear Models

  • Park, Y.S.;Hong, C.S.;Jeong, D.B.
    • Journal of the Korean Data and Information Science Society
    • /
    • 제17권2호
    • /
    • pp.543-557
    • /
    • 2006
  • This paper is concerned with the applicability of the chi-square approximation to the six disparity statistics: the Pearson chi-square, the generalized likelihood ratio, the power divergence, the blended weight chi-square, the blended weight Hellinger distance, and the negative exponential disparity statistic. Three dimensional contingency tables of small and moderate sample sizes are generated to be fitted to all possible hierarchical log-linear models: the completely independent model, the conditionally independent model, the partial association models, and the model with one variable independent of the other two. For models with direct solutions of expected cell counts, point estimates and confidence intervals of the 90 and 95 percentage points of six statistics are explored. For model without direct solutions, the empirical significant levels and the empirical powers of six statistics to test the significance of the three factor interaction are computed and compared.

  • PDF

태극건강기공이 제 2형 당뇨인의 인슐린저항성 및 혈당에 미치는 효과 (The Effect of the Taeguk Gi-Gong Exercise on Insulin Resistance and Blood Glucose in Patients with Type II Diabetes Mellitus)

  • 정인숙;이화자;김명희
    • 기본간호학회지
    • /
    • 제14권1호
    • /
    • pp.44-52
    • /
    • 2007
  • Purpose: This study was done to investigate the effect of Tai Chi Qigong exercise program on insulin resistance and blood glucose in patients with type 2 diabetes. Method: This was a quasi-experimental study used a non-equivalent control group pretest-posttest design. Participants included 39 patients with type 2 diabetes mellitus patients (ages between 40-70)(experimental group, 19, control group, 20). The Tai Chi Qigong exercise program consisted of 5 minute warming up, 30-minute main exercise, and 5 minute cooling down, and was conducted twice a week for 10 weeks. The outcome variables were insulin resistance (proinsulin, C-peptide, insulin, insulin sensitivity index) and blood glucose (fasting, post prandial 2hr, HbA1c). Data was analyzed using ANCOVA, with pre-test values as covariates, to examine difference between pre and post measures between the two groups. Results: The Tai Chi Qigong was effective in lowering postprandial 2hr blood glucose. Conclusion: Twice a week 10 week-Tai Chi Qigong exercise seems to be too short to improve insulin excretion or resistance, and fasting blood sugar and HbA1C in patients with type 2 DM. A Tai Chi Qigong program at least 3 times per week or longer is recommended.

  • PDF

조선업에서 산업재해로 인정된 근골격계질환의 특성 (Characteristics of Work-related Musculoskeletal Disorders Compensated by the Industrial Accident Compensation Insurance in Shipbuilding Industry)

  • 김상우;신용철;강동묵
    • 한국산업보건학회지
    • /
    • 제15권2호
    • /
    • pp.114-123
    • /
    • 2005
  • We analyzed the demographic and job features of 197 shipyard workers with work-related musculoskeletal disorders(WMSDs) compensated by the Industrial Accident Compensation Insurance Act, and the features of the disorders, the causes of operation and the induced behaviors. The three shipbuilding companies surveyed were located in Busan Metropolitan city and Gyungsangnam-do. The results were as follows. 1. The ages of WMSDs patients in shipyard were $43.6{\pm}8.6$ and the job tenure was $14.3{\pm}5.6$. The 40's of them was 40.1%, and the 30's was 29.4%. Patients less than 5 year-work duration were 85.3%, and ones more than 16 year-work duration 6.6%. In occupations, welders were 32.5%, pre-welders 17.3%, and setting engineers 6.6%. 2. The causes of WMSDs in shipyard were works(95.4%) and outer crash or accident shock (3.6%). Based on the standard of the NIOSH induced behaviors, the causes were awkward posture (62.9%), excessive movement(19.3%) and repetitive movement(13.7%). 3. The compensated WMSDs by body part was the highest, 36%, in the spines, 32.0% in both the upper limbs and the spines, and 14% in the upper limbs. The number of cases of WMSDs in body were 96 in the cervical, 79 in the lumbar and 72 in the shoulders. 4. As a result of chi-square test(${\chi}^2$) between diagnosis and operation in body, welding and spot welding had the most diagnoses in all parts of the body among other occupations. Chi-square test(${\chi}^2$) between diagnosis and induced behavior in body showed that awkward postures recorded the highest rate and repetitive movements was the second. 5. The most hazardous occupation was the welding(incidence rate=9.7) and the most hazardous behavior was the awkward posture.

간호대학생의 아르바이트 경험이 의사소통능력, 자기 효능감, 사회적 기술에 미치는 효과 연구 (Study of Effect on Interpersonal Communication Competence, Self-Efficacy, Social Skill from Nursing Students' Part Time Work Experiences)

  • 심인옥;송건우
    • 한국산학기술학회논문지
    • /
    • 제17권7호
    • /
    • pp.123-133
    • /
    • 2016
  • 본 연구의 목적은 간호대학생들의 아르바이트 실태를 파악하고, 아르바이트 경험의 다양한 요인들 중 간호사에게 필요한 의사소통능력, 자기 효능감, 사회적 기술에 미치는 효과와 요인과의 상관관계를 파악하고자 하였다. 본 연구의 대상은 S, B, G시 소재의 간호대학에 재학 중인 대학생 362명을 참여자로 선정하였다. 자료분석방법으로 대상자의 아르바이트 경험유무와 일반적 특성과의 관계는 Chi-square(${\chi}^2$) test, Fisher's exact test검정으로, 일반적 특성에 따른 의사소통능력, 자기 효능감, 사회적 기술척도의 집단 간의 차이는 t-test, Analys of variance(ANOVA)검정으로 분석하였다. 연구에서 나타난 결과는 간호대학생의 91.7%가 아르바이트를 경험하였으며, 8.3%는 아르바이트를 경험하지 않았다. 아르바이트 경험유무와 일반적 특성과의 관련성에서 경제적 수준이 낮을수록 아르바이트를 경험하는 것으로 나타났다. 아르바이트를 하게 된 요인으로는 '용돈 마련'이 77.9%로 가장 높았으며, 아르바이트 분류항목에서 '카운터 및 서빙' 부분이 62.2%로 가장 많았다. 아르바이트 경험에 따른 간호대학생의 의사소통능력, 자기 효능감, 사회적 기술의 정도와 관련하여 아르바이트 시작시기와 통계적으로 유의한 차이가 있는 것으로 나타났다. 특히 중학교 시기에 아르바이트를 경험한 학생들의 의사소통능력, 사회적 기술 능력이 고등학교 시기 이후에 아르바이트를 경험한 학생들에 비해 낮은 점수를 보여주었다. 본 연구결과를 토대로 간호대학생의 아르바이트 경험에 대한 강점을 파악하고 이를 적용할 수 있도록 하는 지속적인 연구가 요구된다.

The Effects of Job Crafting on Work Engagement and Work Performance: A Study of Vietnamese Commercial Banks

  • NGUYEN, Ha Minh;NGUYEN, Cuong;NGO, Trung Thanh;NGUYEN, Luan Vinh
    • The Journal of Asian Finance, Economics and Business
    • /
    • 제6권2호
    • /
    • pp.189-201
    • /
    • 2019
  • The purpose of this study is to identify elements of job crafting impacts on work engagement and individual work performance in Vietnamese commercial banks. The research data, collected from 226 bank officers, uses the quantitative research tools as: Cronbach's Alpha Analysis, Explanatory Factor Analysis, Confirmatory Factor Analysis as well as Structural Equation Modeling. The results of the hypothesis test show that only two hypotheses (H2, H3) are accepted: the impact of cognitive crafting on work engagement of bank officers (H2) and the impact of work engagement on individual work performance (H3). However, three remaining relationships (H1, H4, H5) are not accepted in the study: the impact of relational crafting on work engagement of bank officers (H1), the impact of relational crafting on individual work performance of bank officers (H4) and the impact of cognitive crafting on individual work performance of bank officers (H5). The study results indicate that cognition on job crafting leaves positive impacts on work engagement, leading to individual work performance enhancement. On the other hand, the relational crafting element implies contribution on neither collective nor individual working performances. Furthermore, no direct effect of cognition on job crafting to individual performance has been identified.

관절염 환자를 위한 타이치 프로그램 적용 후 통증, 피로, 인지된 건강상태, 관절뻣뻣함, 일상활동장애, 우울의 변화 (Changes in Pain, Fatigue, Perceived Health Status, Joint Stiffness, Disability in ADL, and Depression after Tai Chi for Arthritis Program)

  • 이경숙;소애영;최정숙;이은희;유보비
    • 근관절건강학회지
    • /
    • 제15권1호
    • /
    • pp.53-61
    • /
    • 2008
  • Purpose: The purpose of this study was to observe the changes of the pain, fatigue, perceived health status, disability in ADL, and depression after Tai Chi for arthritis. Method: The subjects were 19 osteoarthritis women enrolled at one primary health care post. They have agreed to participate in this study, and participated in the 12-week Tai Chi program from Dec. 2006 to Mar. 2007, and all the measurement processes in right after, 2 months later, and 4 months later after Tai Chi program. The measurement tools of this study were all self-reported questionnaires such as Numerical Rating Scale (0-100) for pain, fatigue, and perceived health status, Korean-WOMAC (Western Ontario and McMaster University Osteoarthritis) Index for joint stiffness, Korean Health Assessment Questionnaire, and CES-Depression scale. Results: The repeated measure ANOVA revealed the significant differences on pain among the right after, 2 months later, and 4 months later the program. Especially 2 months later after program, pain was significantly increased than right after by t-test. There were no significant differences on fatigue, perceived health status, disability in ADL, and depression. Conclusion: Pain was increased after Tai Chi for arthritis program, but fatigue, perceived health status, disability in ADL, and depression were not changed until 4 months after Tai Chi program.

  • PDF

낙동정맥의서식지유형별조류군집분석 (Analysis of Bird Community by Habitat Type in Nak-dong Jeongmaek)

  • 한승우;강태한;박치영;신용운;임은홍;이준우
    • 한국환경생태학회지
    • /
    • 제30권3호
    • /
    • pp.335-343
    • /
    • 2016
  • 본 연구는 낙동정맥의 구간 중 다양한 지형을 볼 수 있고, 자연환경이 잘 보존되어 낙동정맥의 대표성을 가질 수 있다고 판단되는 5개의 산(백병산, 칠보산, 백암산, 운주산, 고헌산)을 중점조사지역으로 선정하였고, 각 산별로 조류 서식지 유형별 2개씩의 고정조사구를 설정하여 2015년 5월부터 10월 사이의 기간 동안 수행되었다. 낙동정맥의 5개의 산을 조사한 결과 총 47종 1,163개체의 조류가 확인되었다. 서식지 유형별 출현종은 임도 및 능선에서 31종으로 가장 많았고, 개체수는 계곡부에서 471개체로 가장 많았다. 낙동정맥의 서식지 유형별 영소길드 분석(Pearson Chi-Square test, ${\chi}^2=13.377$, p=0.037)결과 개발지, 계곡부에서 수관층 영소길드(Canopy nesting guild)에 속한 군집의 빈도가 높았고, 임도 및 능선에서는 수동 영소길드(Hole nesting guild)에 속한 군집의 빈도가 높았다. 채이길드 분석(Pearson Chi-Square test, ${\chi}^2=15.555$, p=0.004)결과 개발지에서 관목층 채이길드(Bush foraging guild)에 속한 군집의 빈도가 높았고, 계곡부, 임도 및 능선에서는 수관층 채이길드(Canopy foraging guild)에 속한 군집의 빈도가 높았다. 길드 분석 결과 서식지 유형별 유의한 차이가 있는 것은 임도의 개설 과정에서 천이된 초본류로 인한 붉은머리오목눈이, 노랑턱멧새 등의 유입과 같은 조류 서식지의 환경적 변화가 낙동정맥에 서식하는 조류에 영향을 주고 있었으며, 이러한 연구결과는 낙동정맥의 다양한 서식지 유형이 조류 서식에 다양하고 우수한 자원을 제공하고 있다는 것으로 판단된다.

고위험 임부간호교육에 적용한 팀 기반 학습이 학업성취도, 문제해결능력 및 의사소통능력에 미치는 효과 (Effects of Team Based Learning on Academic Achievement, Problem Solving Skill and Communication Ability in High Risk Pregnant Nursing)

  • 김수미
    • 한국콘텐츠학회논문지
    • /
    • 제19권8호
    • /
    • pp.556-564
    • /
    • 2019
  • 본 연구는 팀 기반 학습방법을 고위험 임부간호교육에 적용하여 학생들의 학업성취도, 문제해결능력 및 의사소통능력에 미치는 효과를 검증하기 위한 동등성 대조군 전후 실험설계연구이다. 연구대상은 J도에 소재한 간호학과 2학년 중 실험군 60명, 대조군 60명으로 총 120명이었다. 주 1회, 8주간 프로그램을 실시하였으며 실시 전과 후에 학업성취도, 문제해결능력 및 의사소통능력을 측정하였다. 측정된 자료는 ${\chi}^2-test$와 Fisher's exact test, independent t-test, paired t-test로 분석하였다. 연구결과 학업성취도에서는 두 군 간의 유의한 차이가 없었으나(1차 시험: p=.38, 2차 시험: p=.26) 학습자의 문제해결능력과 의사소통능력을 증진시켰다(p<.001). 그러므로 본 연구는 팀 기반 학습이 고위험 임부간호교육에서 학생들의 문제해결능력과 의사소통능력을 향상시키는데 효과적임을 파악한 점에서 연구의 의의를 지니며, 향후 다른 간호학 전공 분야의 효과적인 교수법으로 확대적용 할 수 있을 것으로 기대한다.