• Title/Summary/Keyword: chi-square test

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Comparison of Predict Mortality Scoring Systems for Spontaneous Intracerebral Hemorrhage Patients (자발성 뇌내출혈 환자의 예후 예측도구 비교)

  • Youn, Bock-Hui;Kim, Eun-Kyung
    • Korean Journal of Adult Nursing
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    • v.17 no.3
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    • pp.464-473
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    • 2005
  • Purpose: The purpose of this study was to evaluate and compare the predictive ability of three mortality scoring systems; Acute Physiology and Chronic Health Evaluation(APACHE) III, Simplified Acute Physiology Score(SAPS) II, and Mortality Probability Model(MPM) II in discriminating in-hospital mortality for intensive care unit(ICU) patients with spontaneous intracerebral hemorrhage. Methods: Eighty-nine patients admitted to the ICU at a university hospital in Daejeon Korea were recruited for this study. Medical records of the subject were reviewed by a researcher from January 1, 2003 to March 31, 2004, retrospectively. Data were analyzed using SAS 8.1. General characteristic of the subjects were analyzed for frequency and percentage. Results: The results of this study were summarized as follows. The values of the Hosmer-Lemeshow's goodness-of-fit test for the APACHE III, the SAPS II and the MPM II were chi-square H=4.3849 p=0.7345, chi-square H=15.4491 p=0.0307, and chi-square H=0.3356 p=0.8455, respectively. Thus, The calibration of the MPM II found to be the best scoring system, followed by APACHE III. For ROC curve analysis, the areas under the curves of APACHE III, SAPS II, and MPM II were 0.934, 0.918 and 0.813, respectively. Thus, the discrimination of three scoring systems were satisfactory. For two-by-two decision matrices with a decision criterion of 0.5, the correct classification of three scoring systems were good. Conclusion: Both the APACHE III and the MPM II had an excellent power of mortality prediction and discrimination for spontaneous intracerebral hemorrhage patients in ICU.

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The Effects of Education on Breast Self-Examination Practices (유방자가검진 교육이 자가검진 행위에 미치는 영향)

  • 최경옥;서연옥
    • Journal of Korean Academy of Nursing
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    • v.28 no.3
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    • pp.718-728
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    • 1998
  • Breast self-examination is the most effective and easiest way for women to increase the responsible consciousness about their health. The purpose of this study was to test the variables impacted to promote breast self-examination practice. The research design used in this study was a nonequevalent control group of a non-synchronized design. The sample that was assembled consisted of 124 women. A purposive sample consisted of 124 women. Each subject was given to assessed on the following the demographic data related to the breast self-examination, knowledge of self-examination, accuracy, in performing self-examination, self-efficacy about breast cancer and breast self-examination, and the number of subjects who found a mass. The result of this study may be summarized as follows : 1. To examine the theretical model fit to the data, chi square test statistics and goodness of fit index were identified($\chi$$^2$=2.30, df=2, GFI=0.99, AGFI=0.94 RMSR=0.02, NFI=0.99, NNFI=0.99, Critical Number=439). 2. The direct effects of education of breast self-examination were knowledge, self-efficacy, accuracy, number finding a mass. But the Indirect effect of education on breast self-examination was frequency of breast self-examination. 3. Knowlege, as direct paths to the breast self-examination practices, was removed in the theoretical model. The parsimonious best fit model included self-efficacy, accuracy, the number finding mass, frequency of breast self-examination practices. 4. The final model produced a chi-square=5.58(p=0.35) with df=5, and GFI =0.99, AGFI =0.94, RMSR=0.03, NFI=0.99, NNFI=0.99, CN=339 indicating very a good fit. Based on the result of this study, education of breast self-examination is very effective for increasing the competency of the breast self-examination through the knowledge and self-efficacy. Resources to promote self-efficacy may be helpful to increase the frequency of self-examination because self-efficacy is a direct effect on it. These findings suggest the need to develop nursing strategy to promote the self-efficacy of breast self-examination.

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Can Endometriosis Affect the Clinical Outcomes in Patients Undergoing IVF-ET ? (자궁내막증을 갖는 불임환자의 체외수정시술에 관한 연구)

  • Jung, Byeong-Jun;Song, Hyun-Jin;Oh, Ik-Hwan
    • Clinical and Experimental Reproductive Medicine
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    • v.29 no.3
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    • pp.223-227
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    • 2002
  • 연구목적: 전반적인 자궁내막증이 체외수정시술에 미치는 영향을 알아보고, 특히 stage III-IV 자궁내막증을 갖는 불임환자 체외수정시술 결과에 대하여 알아보고자 본 연구를 시행하였다. 연구재료 및 방법: 1998년 9월부터 2001년 9월까지 진단복강경을 통해 자궁내막증으로 진단된 환자 중 체외수정시술을 시행 받은 91명 131주기를 대상으로 하였으며 이중 stage III-IV의 자궁내막증을 갖는 환자는 27명 34주기였다. 비교군은 이시기에 진단된 순수 난관원인으로 체외수정시술을 시행한 40명 56주기를 대상으로 하였다. 통계학적 검사는 Student's t-test와 Chi-square test를 시행하였고, p<0.05를 유의성이 있는 것으로 판정하였다. 결 과: 전체 자궁내막증 환자와 난관인자의 체외수정시술에서 두 군간의 나이는 $31.6{\pm}3.3$, $32.6{\pm}3.6$세로 비슷하였다. 채취된 난자의 수 ($10.3{\pm}6.6$ vs $11.7{\pm}5.1$), 성숙난자 수 ($7.4{\pm}4.7$ vs $7.7{\pm}4.9$), 수정율 ($70.2{\pm}32.4%$ vs $73.7{\pm}20.0%$), Good embryo quality rate (8세포 (G1+G2)를 2PN의 개수로 나눈 값) (32.6% vs 32.4%) 및 배아이식 수 ($4.6{\pm}1.4$ vs $4.8{\pm}1.1$)로 두 군간에 차이는 없었다. 또한 임상적 임신율의 경우도 각각 30.7%, 42.8%로 비슷하였다. 중등도 및 중증의 자궁내막증과 난관인자의 비교에서 성숙난자 및 채취된 난자의 개수는 각각 $8.8{\pm}4.9$, $7.7{\pm}3.9$, $11.3{\pm}7.0$, $11.7{\pm}5.1$개로 두 군간에 차이는 없었다. 수정율은 stage III와 IV 군에서 감소되는 경향을 보였으나 통계학적인 유의성은 없었다 ($66.2{\pm}30.0%$ vs $73.7{\pm}20.0%$). Good qulity embryo rate (GQER)는 stage III-IV 자궁내막증 환자군에서 22.0%로 순수 난관인자의 32.4%에 비하여 감소하는 경향을 보였으나 통계학적인 유의성은 없었다 (p=0.15, Chi-square test). 배아이식 수의 경우는 각각 $4.7{\pm}1.5$, $4.8{\pm}1.1$개로 차이가 없었다. 배아이식 주기당 임상적 임신율의 경우는 stage III-IV군에서 25.0% (8/32), 난관인자 군의 42.8% (24/56)로 통계학적인 유의성은 없었으나 (p=0.06, Chi-square test), 중등도 및 중증의 자궁내막증을 갖는 환자에서 임신율이 감소하는 경향을 보였다. 결 론: 체외수정시술시 자궁내막증이 임신율에 나쁜 영향을 미치지 않지만, 중등도 및 중증의 자궁 내막증을 갖는 불임환자의 체외수정시술에서는 임신율에 나쁜 영향을 끼칠 가능성이 있을 것으로 사료된다.

Inner and Outer Resources of Coping in Newly Diagnosed Breast Cancer Patients : Attachment Security and Social Support

  • Woo, Jungmin;Rim, Hyo-Deog
    • Korean Journal of Biological Psychiatry
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    • v.21 no.4
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    • pp.141-150
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    • 2014
  • Objectives The purpose of this study is to evaluate the effects of attachment security, social support and health-related burden in the prediction of psychological distress and the mediation effects of social support and health-related burden in relationship between attachment security and psychological distress. Methods Finally, 161 patients were included for the analysis. Chi-square test and independent samples t-test were used for comparing differences between depressive/anxious group and non-depressive/non-anxious group. For evaluating the relationship among attachment security, social support, psychological distress and health-related burden, structural equation modeling analysis were performed. Results 40.7% and 32.0% of the patients have significant depressive symptoms and anxiety symptoms, respectively. In the analysis for testing the differences between groups who have psychological distress and who have not, there were no significant differences of sociodemographic factors and medical characteristics between groups, except for association between depressive symptoms and type of surgery (p = 0.01). Contrary to sociodemographic and medical characteristics, there were significant differences of health-related burden and two coping resources (attachment security and social support) between groups (all p < 0.01), except for the support from medical team in between anxious group and non-anxious group (p = 0.20). In the structural equation model analysis (Model fit : chi-square/df ratio = 0.8, root mean square error of approximation = 0.000, comparative fit index = 1.000, non-normed fit index =0.991), attachment security and social support emerged as an important predictor of psychopathology. Conclusions Attachment security and social support are important factors affecting the psychological distress. We suggest that individual attachment style and the social support state must be considered to approach the newly diagnosed breast cancer patients with psychological distress.

Sexual Knowledge and Sexual Attitude and Parent Efficacy among Parents of Preschool Child (학령전기 자녀를 둔 부모 성지식, 성태도, 자녀 성교육에 대한 부모효능감의 융합적 비교)

  • Lee, Eun Mi;Oh, Yun Jeong
    • Journal of the Korea Convergence Society
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    • v.7 no.6
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    • pp.141-150
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    • 2016
  • This study was done to identify sexual knowledge, sexual attitude, and parent efficacy among parents of preschool child. Participants were 70 couples, parents of preschool child. Data were analyzed using chi-square test, t-test, ANOVA. The difference in recognition and attitude about sexuality education for children among parents, person in charge of sexuality education for children(p=.043), parents' experience of sexuality education for their children(p=.043), the number of communication about sexuality with their children(p=.019), the source of information about sexuality(p=.024) showed significant difference. Sexual knowledge(p=.018) and sexual attitude(p=.006) showed meaningful difference. As a result of this study, it is necessary to develop and conduct differentiated education programs when teaching parents about sexuality education for their children in preschool period, considering these characteristics.

Study on the Changes of Prenatal and Labor Characteristics of Married Immigrant Women Referred to a University Hospital for 10 years (일 대학병원에 의뢰된 결혼이주 임산부의 10년간 산전, 분만 특성 변화 연구)

  • Park, Kyung-mi;Moon, Hee;Lee, Eun-sook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.3
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    • pp.317-324
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    • 2018
  • This study was performed to investigate changes in prenatal and delivery characteristics of married immigrant women and to provide basic data for developing maternal health care programs. Data collection was carried out for 6 weeks from September 7, 2016 through medical records, and it was divided into 5-year intervals (5 years before and after 2011 were compared). The survey records consisted of demographic, prenatal, and obstetrics characteristics, and the data were analyzed by frequency, percentage, Independent Sample T-test, and Chi-square test using the SPSS 23.0 program. The results were as follows. The prenatal and delivery characteristics of married immigrant women showed significantly increased inadequate weight gain during pregnancy, pregnancy complications, premature birth, low birth weight infants, and low apgar score. Therefore, based on these changes in married immigrant women, prenatal and postnatal health care programs are needed to prevent maternal and childbirth complications.

A study on distribution comparison of response packets for major portal sites (주요 포털사이트의 응답패킷분포에 관한 연구)

  • Ryu, Gui-Yeol
    • Journal of the Korean Data and Information Science Society
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    • v.24 no.3
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    • pp.437-444
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    • 2013
  • The object of study is to verify the distributions of response packets of 3 portal sites such as Naver, Daum, Nate. The period of experiments is from May 19th 2010 to November 7th 2012 and the number of experiments is 4,642. The distributions of Naver, Nate are biomodals. The distribution of Daum has long right tails. 3 distributions are different under 1% significance level using chi-square test and two sample Kolmogorov-Smirnov test. From proportions and percentiles, Naver has a distribution with the largest values. Nate is the second place, and Daum has a distribution with the smallest values. We must make portal pages light to increase response speed including other technologies. We expect our results to activate competition among portal sites.

The relationship between dementia and the number of remaining tooth of the elderly women on senior center (경로당 여성 노인들의 치매와 잔존 치아 수와의 관련성)

  • Cho, Min-Jeong
    • Journal of Digital Convergence
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    • v.14 no.2
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    • pp.279-286
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    • 2016
  • Recently, with the population growth of elderly people, concerns about oral health related to the quality of life of the elderly are increasing. The purpose of this study is to assess the association between the elderly women divided into dementia, suspected dementia, healthy groups and the remaining teeth of them. Total 177 elderly women of over 60 years old, visiting on senior center in some community dwelling, were assessed for oral condition and their cognitive function with MMSE score. All the collected data were analyzed by chi-square test, t-test, and multiful logistic regression using SPSS. Multiful logistic regression was used to analyze the relationship of dementia according to MMSE score and remaining teeth, and 95% confidence intervals were computed. Odds ratio(OR) of the number of remaining teeth 0-10 was 3.43 (95% confidence interval: 1.382-8.997). This study showed significant difference and the relationship between dementia according to MMSE score and the number of remaining teeth of the elderly women.

Influence of the number of remaining teeth of on sleep time and stress of adults older than 40 years (40세 이상 성인의 수면시간과 스트레스가 잔존 치아 수에 미치는 영향)

  • Cho, Min-Jeong;Kim, Hae-Kyoung;Oh, Na-Rae
    • Journal of Digital Convergence
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    • v.14 no.7
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    • pp.225-232
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    • 2016
  • This paper aimed to study on the relevance of mental health and oral health. The subjects were recruited total 3,261 elderly of over 40 years old, using the Sixth Korea National Health and Nutrition Examination Survey(KNHANES). All the collected data were analyzed by chi-square test, t-test, and logistic regression using SPSS 23.0 version. Logistic regression was used to analyze the relationship of sleeping time or stress and the number of remaining teeth, and 95% confidence intervals were computed. Sleeping time odds ratio(OR) of the number of remaining teeth was 1.52 (95% confidence interval: 1.074-2.135) and Stress odds ratio(OR) was 2.39 (95% confidence interval: 1.855-3.090), but there is no statistically significant difference after adjusted age, gender and other variables.

Effect of Core Practical Capacity Enhancement Training on the Key Competences and Clinical Practice Satisfaction of Nursing Students (핵심실기역량강화교육이 간호학생의 핵심역량과 임상실습만족도에 미치는 효과)

  • Shin, Hwa-Jin
    • Journal of Digital Convergence
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    • v.18 no.7
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    • pp.279-287
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    • 2020
  • For effective clinical practice education, this study was conducted to find out the effects of learning practical subjects on the core competency and satisfaction level of clinical practice on nursing students. The research subjects were divided into groups that conducted four core nursing education classes eight hours a day for two weeks, and groups that received traditional lecture-oriented education, and a questionnaire was prepared and reported by themselves after 15 weeks of clinical practice. The collected data was analyzed using frequency, percentage, mean and standard deviation, chi-square test, and t-test using the SPSS 21.0 program. The findings supported the hypotheses in critical thinking propensity and clinical practice satisfaction, and the hypotheses in leadership, problem-solving and communication skills were rejected. The results of this study confirmed that practical training for strengthening core practical skills has a positive effect on the critical thinking tendency and clinical practice satisfaction of nursing students. Therefore, it can be used as an effective practical training arbitration in nursing education.