• Title/Summary/Keyword: Chi-Square Test for Association

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Prevalence and Risk Factors for Diabetes Mellitus and Impaired Fasting Glucose of Adults (30-69세 성인의 공복혈당장애와 당뇨병의 유병률과 위험인자 분석)

  • 김희승;노유자;김남초;유양숙;용진선;오정아
    • Journal of Korean Academy of Nursing
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    • v.30 no.6
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    • pp.1479-1487
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    • 2000
  • This study was conducted to draw out prevalence and the risk factors of diabetes mellitus and impaired fasting glucose for adults,(age 30-69). The subjects were 2096 adults, who had regular health examinations between January and December of 1999 at K Hospital in Seoul. The data was analyzed using chi-square test, unpaired t-test and logistic regression. Diabetes Mellitus and impaired fasting glucose were diagnosed by ADA (American Diabetes Association, 1997) criteria. The results were as follows: 1. Mens' prevalence of Diabetes Mellitus was 7.9% and womens' prevalence of Diabetes Mellitus was 3.8%. Mens' prevalence of impaired fasting glucose was 10.4% and womens' prevalence of impaired fasting glucose was 6.5%. Prevalences of Diabetes Mellitus and impaired fasting glucose increased with age. 2. Prevalence of Diabetes Mellitus and impaired fasting glucose of obese subjects (relative body weight>=162) was higher than that of overweight subjects (110<=relative body weight<=119) in men and women. 3. The diagnoses of Diabetes Mellitus and impaired fasting glucose increased with systolic blood pressure and triglyceride. 4. Significant factors associated with diabetes in the logistic regression best gut model were age, relative body weight, systolic blood pressure, triglyceride in men, and systolic blood pressure in women. In conclusion, as age, weight, systolic blood pressure and triglyceride get higher, Diabetes Mellitus and impaired fasting glucose prevalence also increases, porportionally.

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Informativeness and Consumer Misleading Potentialities on the Internet Shopping Mall Sites -The Study of Comparison between On-line Market Place and Integrated Internet Stores- (인터넷 쇼핑몰 사이트에서의 정보성과 소비자 오도가능성 - 온라인 마켓 플레이스와 인터넷 종합쇼핑몰의 비교 -)

  • Kim, So-Ra
    • Journal of Families and Better Life
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    • v.26 no.1
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    • pp.15-29
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    • 2008
  • The study examined the characteristics of internet shopping mall sites including on-line market places and integrated internet stores from a perspective of consumer protection. Specifically, the study investigated 1) whether sufficient information is provided on the internet shopping mall sites, 2) whether shopping mall sites abide by internet advertising principles, and 3) specific examples of consumer misleading potentialities from internet shopping sites. Further, on-line market places and integrated internet stores were compared based on their informativeness and potential consumer misleading factors. Total 50 shopping mall sites were analyzed for examining the types of information provided and consumer misleading factors. To verify study questions, descriptive statistics were used. For comparison between on-line market places and integrated internet stores, Chi-square test and independent-sample t-test were employed. The results of this study were as the following: First, not a few of the internet shopping mall sites did not provided important information such as safety and warrantees. Second, important disclosures were not noticeable on the web pages and distracting factors were frequently used. Third, integrated internet stores were desirable compared to on-line marketplaces based on informativeness and consumer misleading potentialities. As the result of this study, internet shopping malls need to advised to provide sufficient information and reduce potential misleading factors.

Exchange Rate Volatility Measures and GARCH Model Applications : Practical Information Processing Approach (환율 변동성 측정과 GARCH모형의 적용 : 실용정보처리접근법)

  • Moon, Chang-Kuen
    • International Commerce and Information Review
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    • v.12 no.1
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    • pp.99-121
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    • 2010
  • This paper reviews the categories and properties of risk measures, analyzes the classes and structural equations of volatility forecasting models, and presents the practical methodologies and their expansion methods of estimating and forecasting the volatilities of exchange rates using Excel spreadsheet modeling. We apply the GARCH(1,1) model to the Korean won(KRW) denominated daily and monthly exchange rates of USD, JPY, EUR, GBP, CAD and CNY during the periods from January 4, 1998 to December 31, 2009, make the estimates of long-run variances in the returns of exchange rate calculated as the step-by-step change rate, and test the adequacy of estimated GARCH(1,1) model using the Box-Pierce-Ljung statistics Q and chi-square test-statistics. We demonstrate the adequacy of GARCH(1,1) model in estimating and forecasting the volatility of exchange rates in the monthly series except the semi-variance GARCH(1,1) applied to KRW/JPY100 rate. But we reject the adequacy of GARCH(1,1) model in estimating and forecasting the volatility of exchange rates in the daily series because of the very high Box-Pierce-Ljung statistics in the respective time lags resulting to the self-autocorrelation. In conclusion, the GARCH(1,1) model provides for the easy and helpful tools to forecast the exchange rate volatilities and may become the powerful methodology to overcome the application difficulties with the spreadsheet modeling.

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Fashion Product Purchasing Behavior according to College Students' Consumption Value Typology (대학생의 소비가치 유형에 따른 패션제품 구매행동)

  • Park, Eun-Hee;Ku, Yang-Suk
    • Korean Journal of Human Ecology
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    • v.17 no.4
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    • pp.759-769
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    • 2008
  • The purpose of this study was to classify consumption value and analyze the relationship between consumption value typology and fashion product purchasing behavior of college students as consumers. Data were gathered by surveying college students living in Daegu and Kyungbook area using convenient sampling, and 513 questionnaires were used in the statistical analysis. Data were analyzed by frequency, factor analysis, cluster analysis, ANOVA, Duncan-test, Chi-square, and t-test. The findings are as follows. According to the consumption value typologies of college students were classified into three groups such as Social Value oriented, Functional Value oriented, and Differentiated Individuality oriented group. The Social Value oriented group and the Differentiated Individuality oriented group were more conscious of clothing pursuit propensities behavior such as brand, shopping place, and price than Functional Value oriented group. The Functional Value oriented group showed the lowest interest in brand name. Purchasing behavior of casual wear and bags fashion product had the significant effects on the shopping place, and price.

Purchase Satisfaction of Apparel for Internet Fashion Shopping Mall Users - focused on 20's~30's Men and Women (인터넷 패션 쇼핑몰 이용자의 의류구매 만족도 -20~30대 남녀를 중심으로-)

  • 신수연;김민정
    • The Research Journal of the Costume Culture
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    • v.11 no.4
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    • pp.487-499
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    • 2003
  • The purpose of this study was to suggest marketing strategies to internet fashion shopping malls identifying factors that customers consider important. Data were collected by survey questionnaire and the subjects were 322 men and women in their twenties and thirties living in Seoul and Kyung-gi. SPSS 10.0 package were used and reliability, frequency, cross tabulation, chi-square, paired t-test, ANOV A and Duncan test were conducted for data analysis. The results were as follows. I) Subjects placed the most importance on providing the precise and detail information of products but its satisfaction level was low. 2) Subjects considered the ‘low price’ very importantly but its satisfaction level of it was not high. 3) Subject's importance and satisfaction level of ‘point system’ were about an average. 'Point system' has to be activated by using systems such as 'point network system' by pointbanking co. as one of price-cutting strategies. 4) Internet fashion shopping mall users treated 'the security system of personal data' importantly while they were not sufficiently satisfied with the system. 5) Female placed more importance on design and color of products and suppliance of the trendy items.

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Association with safety consciousness and cognitive-behavioral factors among university students: Focusing on the health and safety survey for university students living in dormitories on campus (대학생의 안전의식과 인지행동요인 간의 관련성: 대학생활관 입사생 건강안전기초조사결과를 중심으로)

  • Kim, Young-Bok
    • Korean Journal of Health Education and Promotion
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    • v.35 no.5
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    • pp.25-33
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    • 2018
  • Objectives: The purpose of this study was to investigate safety consciousness (SC), cognitive-behavioral strategy (CBS), and safety behavior (SB) among university students living in dormitories on campus. Methods: The data was analyzed to compare the safety behavior by sex, safety related factors, and safety consciousness index in the SPSS 23 program using Chi-square test, t-test, Pearson correlation coefficients, and multiple regression. Results: The participants in the health and safety behaviors survey were 2,721 students who have been in dormitories on campus. On the mean of items, the Public Safety Consciousness Index (PSCI) was 93.1, SC was 26.9, CBS was 15.7, and SB was 50.4. It were significant correlations between SC, CBS, and SB among university students (r=0.74-0.78), and CBS was identified as the mediator. Finally, it was significant increase the SC, CBS, and SB by sex and participation on safety education, but decrease by age and experience of accident and disaster. Conclusions: It is necessary to develop safety education program enhancing safety consciousness and safety behavior in order to prevent accidents on campus. And it suggests that safety education should be included in regular curriculum of university to improve health status and achieve academic goals.

Validation of the Maternal Emotion Coaching Questionnaire for Mothers of Preschool Children (유아기 자녀를 둔 어머니의 정서코칭 평가도구 타당화)

  • Lim, JungHa;Park, Sungmin
    • Korean Journal of Childcare and Education
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    • v.18 no.4
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    • pp.1-16
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    • 2022
  • Objective: The purpose of this study is to test the psychometric properties of the Maternal Emotion Coaching Questionnaire (MECQ, Lim et al., 2018) in order to measure emotion coaching in mothers of preschoolers. Methods: A total of 316 preschoolers and their mothers participated in this study. Maternal emotion coaching was assessed by self-report and child emotion regulation ability was evaluated by the teacher. Data were analyzed with chi-square tests, reliability analysis, confirmatory factor analysis, latent profile analysis, and F-test. Results: Each item of the MECQ showed proper discriminative power. The MECQ and each subscale demonstrated adequate internal consistency and split-half reliability. Evidence of construct validity was provided by confirmatory factor analysis. The five-factor model including maternal attention, awareness, acceptance, empathy, and guidance showed a good fit. Results of the latent profile analysis revealed three profiles of emotion coaching: excellent, good, and poor. Preschoolers with mothers in the poor coaching profile showed significantly lower emotion regulation ability compared to those in the excellent or good coaching profiles, which suggested discriminative validity of the MECQ. Conclusion/Implications: The MECQ presents a reliable and valid tool to assess emotion coaching in mothers of preschool children and can thus be effectively used for mothers of preschoolers.

Needs for the Planning of Group Homes for the Elderly with Dementia of Lower Income Classes (저소득층의 치매노인 그룹홈 계획에 대한 요구)

  • 김대년;최정신;권오정
    • Journal of the Korean Home Economics Association
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    • v.40 no.4
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    • pp.1-12
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    • 2002
  • This study aimed to examine the needs for the planning of group homes for the elderly with dementia in lower income class, who have more economic burden on the caring the demented aged. The survey was conducted by questionnaires collected from 300 respondents from December 2000 to March 2001. Methods of analysis were frequency distribution, mean and chi-square test. The results of this study were as follows: 1) The respondents perceived that the responsibility to take care of the elderly with dementia belonged to their family, not to society or the government, and the sons and daughters had to share the burden placed on care-givers. 2) The awareness of group homes for dementia was relatively low. 3) The respondents' needs for the group homes with dementia could be summarized as follows; small scale plan with homelike atmosphere, a total of 6-8 residents, structural type of detached house or three-storied town house, 2-3 persons per individual room, and management system by non-profit organization or the government. There were no big differences between the respondents of this study and upper and middle class studies conducted by other research, except for some details. Referring to results of this study, it is asserted that group homes for the elderly with dementia would be embraced throughout the country if poetical assistance combined with economic support were provided.

The Association between Weather Conditions and the Number of No-Show Patients at an Academic Medical Center (기상변화와 일개 대학병원 외래환자 예약부도와의 관련성)

  • Park, Il-Soon;Jung, Sang-Jin;Shin, Hwan-Ho
    • The Korean Journal of Health Service Management
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    • v.11 no.4
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    • pp.41-51
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    • 2017
  • Objectives : This study investigates the association between weather conditions and the rate of no-shows at an academic medical center. Methods : Electronic data regarding medical appointments atover the course ofone academic year (2016.03~2017.02) were used for analysis. Characteristics of weather conditions and the daily number of no-shows were compared by Chi-square test. A logistic regression was run to determine if certain aspects of weather affected the rate of no-shows. Results : The results reveal an overall no-show rate of 6.8% that appears to vary in accordance with specific weather conditions. Lower average temperatures, in particular, corresponded with a higher rate of no-show patients. This may indicate that o-show rates in autumn and winter can be expected to exceed those during spring. Conclusions : This study investigates the association between no-show patients and weather conditions, and offers suggestions for augmenting this loss. One recommendation is to begin conducting investigations nationwide in order to provide more useful information.

Development of the Parenting Stress Scale (양육스트레스 척도의 개발)

  • 김기현
    • Journal of the Korean Home Economics Association
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    • v.35 no.5
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    • pp.141-150
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    • 1997
  • The purpose of this study was the development of the parenting stress scale, necessary to understand the details of the difficulties for a working mother having children from infant to preschooler. Relevant works were reviewed to collect 44 items for the questionnaire from the previous researchs, and additional 34 are combined as a set of measure items. The 78 items were analyzed for the fitness of structure based on the chi-square test and Cramer's V coefficients, and 35 were selected as a final set for the questionnaire. Further factor analysis on the 35 items showed that they could be selected 32 items of the 35 item scale and composed of 3 subscales; namely, the first factor(12 items) as‘typical stress due to the parenting’, the second(12 items) as‘pressures pertaining to the parental role and distress’, and the third(8 items) as’guilty to the parenting by others’. This final questionnaire composed of 32 items was also tested for the concurrent validity based on Pearson's correlation with Goldberg's General Health Questionnaire (GHQ), which is a well-known index to represent the socio-psychological stress. The correlation factor is .41(p<.001), which justifies the fitness of the newly designed questionnaire. To find the confidence level, the Cronbach α was evaluated, which results .88 for the overall questionnaire and ranges between .76 and .82 for each subcale. This parenting scale can be also utilized as a measure to exploit proper programs for the parent-child relations, parent education and rehabitilation of the family function.

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