• 제목/요약/키워드: McNemar's test

검색결과 52건 처리시간 0.064초

GIS를 이용한 대학생 의류 구매의 상권 방문 분석 - 구매 시기를 중심으로 - (Analysis of Visiting Trade Area by College Students for Clothing Purchase using GIS - Focused on Buying Time -)

  • 정현주;최은미
    • 한국지리정보학회지
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    • 제9권2호
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    • pp.183-193
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    • 2006
  • 본 연구는 부산에 거주하는 대학생들의 의류 구매(정장 및 캐주얼) 상권에 따른 공간행동이 주중과 주말의 구매 시기에 따른 것을 살펴보는데 그 목적이 있다. 질문지를 통해서 분석했으며, SPSS 통계 분석 중에서 맥네마 분석기법을 이용하여 대학생들의 의류 구매 시기를 주중과 주말로 분류하여 분석하였다. 분석결과 통계적으로 유의한 차이가 있는 것으로 나타나 어떻게 차이가 있는지 GIS를 통해 시각적으로 살펴보았다 이와 같이 시각적으로 이해하기 위해 GIS의 프로그램 내에서 스파이더 분석방법을 이용하여 대학생들의 정장과 캐주얼의 구매 시 상권방문에 따른 공간행동을 나타내었다. 본 분석을 통해서 의류업체는 소비자들의 의류 구매 특성을 개별적으로 파악하여 전체적으로 혹은 부분적으로 분석함으로써 상권 및 점포 전략을 세우는데 유용하게 이용할 수 있을 것이다.

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혈액종양 환자의 골수검사 후 침상안정 시간에 따른 불편감 및 출혈 (Discomfort and Bleeding in Relation to Bedrest Time after Bone Marrow Examination among Hemato-oncology Patients)

  • 이혜연;정진영;박세연;조은미;장창섭;김향선;박미정;황유민;서은영
    • 임상간호연구
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    • 제25권1호
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    • pp.91-97
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    • 2019
  • Purpose: The purpose of this study was to investigate hemato-oncology patients' discomfort and bleeding in relation to the bedrest time after bone marrow examination. Methods: A descriptive correlational study was conducted. The data were collected using self- report questionnaire from total of 131 patients who underwent bone marrow examination from January 2017 to September 2017. Data were analyzed with descriptive statistics, Wilcoxon Signed-rank test, McNemar's test and logistic regression. Results: The level of discomfort after 4 hours of bedrest was significantly higher when compared to 2 hours of bedrest(p<.001). The occurrence of bleeding after 2 hours of bedrest was significantly higher than 4 hours of bedrest(p<.001), however the degree of bleeding was slight. No bleeding occurred in 84% of the patients after 2 hours of bedrest. Conclusion: The results of this study demonstrated that shortening the bed rest time after bone marrow examination was helpful in improving the patient's well-being. Bedrest time could be shortened according to the site of bone marrow examination and patient's condition.

대장암 환자의 생활양상에 관한 연구 (A Study on the Life Style in Clients with Colo-Rectal Cancer)

  • 김미숙;전점이;손경희
    • 성인간호학회지
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    • 제14권3호
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    • pp.390-400
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    • 2002
  • Purpose: This study was to prepare the basic data for prevention of colorectal cancer and protection against its spread. Method: The subjects for the study were 204 patients with colorectal cancer from the G.S. wards of five general hospitals in Busan for the period of June 1 to September 1, 2001. The instrument used was a questionaire which was developed by Junho Shin(1995). The data was analyzed by descriptive statistics, McNemar test, ${\chi}^2$ test, paired t-test, and ANOVA. Result: 1. 57% of the studied subjects were male, 42.7% were more than 60 years old, 54.9% were of standard physique, 49.5% were the Buddhists, 50.5% were the middle or high school graduates, 83.8% were city dwellers, 48% were jobless, 69.6% had no-history of alimentary disease, 44.1% had no-family history of cancer, 82.8% were married. 2. Constipation (${\chi}^2=36.45$, p=0.0001) in clients showed a significant positive association for the prediagnosed, but diarrhea(${\chi}^2=3.947$, p=0.047) showed a significant positive association for the post-diagnosed. The preference for high seasonings(t=6.23, p=0.0001) and animal fat (t=8.35, p=0.0001) was higher significantly in the pre-diagnosed, but physical activities(${\chi}^2=30.22$, p=0.0001), an eutrophic or tonic medicine(${\chi}^2=30.22$, p=0.0001), was of and vegetables(t=-6.20, p=0.0001) was higher significantly in the post-diagnosed. 3. There were significant differences in the life style of the pre-diagnosed according to the general characteristics except religion. Conclusion: Results of the above study reveal we should be very sensitive to the change of defecation styles and consider the necessity of improving life styles as regards eating habits. When an education program is developed, the general characteristics of the subjects need to be considered.

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Comparison of two different methods of detecting residual caries

  • Vural, Uzay Koc;Kutuk, Zeynep Bilge;Ergin, Esra;Cakir, Filiz Yalcin;Gurgan, Sevil
    • Restorative Dentistry and Endodontics
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    • 제42권1호
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    • pp.48-53
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    • 2017
  • Objectives: The aim of this study was to investigate the ability of the fluorescence-aided caries excavation (FACE) device to detect residual caries by comparing conventional methods in vivo. Materials and Methods: A total of 301 females and 202 males with carious teeth participated in this study. The cavity preparations were done by grade 4 (Group 1, 154 teeth), grade 5 (Group 2, 176 teeth), and postgraduate (Group 3, 173 teeth) students. After caries excavation using a handpiece and hand instruments, the presence of residual caries was evaluated by 2 investigators who were previously calibrated for visual-tactile assessment with and without magnifying glasses and trained in the use of a FACE device. The tooth number, cavity type, and presence or absence of residual caries were recorded. The data were analyzed using the Chi-square test, the Fisher's Exact test, or the McNemar test as appropriate. Kappa statistics was used for calibration. In all tests, the level of significance was set at p = 0.05. Results: Almost half of the cavities prepared were Class II (Class I, 20.9%; Class II, 48.9%; Class III, 20.1%; Class IV, 3.4%; Class V, 6.8%). Higher numbers of cavities left with caries were observed in Groups 1 and 2 than in Group 3 for all examination methods. Significant differences were found between visual inspection with or without magnifying glasses and inspection with a FACE device for all groups (p < 0.001). More residual caries were detected through inspection with a FACE device (46.5%) than through either visual inspection (31.8%) or inspection with a magnifying glass (37.6%). Conclusions: Within the limitations of this study, the FACE device may be an effective method for the detection of residual caries.

Use of piezoelectric surgery and Er:YAG laser:which one is more effective during impacted third molar surgery?

  • Keyhan, Seied Omid;Fallahi, Hamid Reza;Cheshmi, Behzad;Mokhtari, Sajad;Zandian, Dana;Yousefi, Parisa
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제41권
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    • pp.29.1-29.10
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    • 2019
  • Background: Reduction in postoperative complications is of vital considerations in impacted third molar teeth surgery. The aim of this study was to compare postoperative complications of impacted third molar surgeries for bone removal using laser, piezoelectric equipment, and conventional rotary instruments. Methods: To address the research purpose, the investigator designed the prospective double-blind clinical trial study. The sample size was determined 20 (40 teeth) by sampling formula in any kind of operation. The data of patients were obtained in the different periods in terms of pain, trismus, swelling, ecchymosis, and patient's satisfaction and then analyzed using SPSS 20 software via paired t test and Wilcoxon and McNemar's tests. Results: The pain immediately after surgery and 2 days and 7 days after surgery was higher in the laser group. The swelling immediately after surgery was more in the laser group but not significant. The amount of mouth opening immediately after surgery and 2 days and 7 days after surgery was significantly lower in the laser group than in the piezosurgery group. The total duration of surgery and duration of osteotomy were significantly longer in the laser group. The patient's satisfaction from surgery with piezosurgery was more than that with laser, but this difference was not significant. Conclusion: Due to the rising demand for impacted wisdom tooth surgery, the present study suggests that hard tissue laser surgery and piezosurgery can clear the future of impacted molar surgery, and these approaches are more efficient in reducing postoperative complications compared to the conventional surgeries.

보건교사가 수행한 중학생 심폐소생술 교육 효과 (Effect of cardiopulmonary resuscitation(CPR) education performed by health teachers on middle school students)

  • 전호선;손혜숙
    • 디지털융복합연구
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    • 제13권10호
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    • pp.385-395
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    • 2015
  • 목격자 심폐소생술 시행률을 높이는 핵심 방안 중 하나가 학생들에게 심폐소생술 교육을 하는 것이다. 본 연구의 목적은 보건교사가 실시하는 중학생 심폐소생술 교육의 결과를 교육 전 수준과 비교 검증하는 것이다. 2014년 3월부터 6월까지 부산광역시 중학생 812명을 대상으로 교육 전과 후의 관찰 값을 SPSS, SAS프로그램을 사용하여 카이검정과 맥네머 검정으로 분석하였다. 대상자의 성별과 과거교육 경험을 층하한 후 각 층하군에서 인식, 의지 및 자신감의 모든 항목에서 교육 전보다 교육 후에 통계적으로 유의하게 긍정적인 변화가 관찰되었다(p<0.05). 목격자 심폐소생술이 더 많이 실시되기 위해서는 중학생에게 보건교사가 이론과 실습으로 구성된 심폐소생술 교육을 실시하는 것이 바람직하다고 판단된다. 이러한 교육의 실현을 위하여 교육 도구의 공급을 위한 지역사회의 정책 개발을 위한 추가적인 연구가 더 필요할 것으로 생각한다.

Effectiveness of Online Education in Teaching Breast Self-Examination

  • Tuna, Arzu;Avdal, Elif Unsal;Yucel, Sebnem Cinar;Dal, Nursel Alp;Dicle, Aklime;Ozkan, Arife;Sezgin, Handan;Gumus, Aysun Babacan;Turgay, Ayse San;Degirmenci, Mustafa
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권7호
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    • pp.3227-3231
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    • 2014
  • Background: This research evaluated the effectiveness of an online education model in teaching breast self-examination to university staff and students. Materials and Methods: 1,679 women participated in a breast self-examination online training program. Breast self-examination knowledge evaluation forms developed by Maurer (1997) were used in the research and were evaluated on a 100 point scale. Paired t-test and McNemar's Test statistics were employed. Results: The participants scored an average of 46.5 (14.0%) on knowledge on breast self-examination before training, but 77.4 (11.0%) one month after education and 76.7 (9.52%) after six months. There was a clear significant difference between these knowledge levels (p<0.05). Similarly, while the rate for systematic practice of breast self-examination among women was 30.8% before training it increased to 47.8% afterwards. Again the difference was significant (p<0.05). Conclusions: Online education is an effective method for teaching breast self-examination to women.

환경보강 유방자가검진 프로그램의 효과 (The Effects of Breast Self-examination Program Enriched Environmentally among Healthy Women)

  • 박경연;김소희
    • 여성건강간호학회지
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    • 제16권2호
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    • pp.105-115
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    • 2010
  • Purpose: The purpose of this study was to determine the effects of an environmental enrichment program on barrier, benefit, confidence, and compliance of breast self-examination in women at 3 months after instruction. Methods: Nonequivalent control group pretest-posttest design was conducted among 62 healthy women. Data were collected through the self-reported questionnaires from December 2008 to March 2009. Women were assigned to one of two treatment groups: (a) no-support of environmental enrichment with the instruction control group; (b) the support of environmental enrichment with the instruction experimental group. All women received the same instruction on breast self-examination once a week for two weeks. Data were analyzed with paired t-test, McNemar test and ANCOVAs of controlling for age run using SPSS/WIN 17.0. Results: The experimental group was significantly lower than control group on perceived barrier (F=5.91, p=.02) and higher than control group on compliance of breast self-examination (F=4.57, p=.04) after environmental enrichment program. However the environmental enrichment program did not make significant differences on benefit (F=0.01, p=.91) and confidence (F=0.77, p=.38). Conclusion: Findings suggest that the environmental enrichment should be needed to support women's breast self-examination and expanded for compliance of breast self-examination to promote the secondary prevention of women breast cancer.

제7회 전국동시지방선거 중 기초의원선거에서의 정당 내 기호 순서와 득표 순서의 관계 분석 (Relationship between orders of signs and vote within parties in electing local district councilors during the 7th nationwide local election)

  • 김혁주
    • 응용통계연구
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    • 제31권6호
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    • pp.825-833
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    • 2018
  • 2018년 6월 13일에 실시된 제7회 전국동시지방선거 중 기초의원선거에서의 동일 정당 내의 기호 순서와 득표 순서를 분석하여 기호 순서가 득표 순서에 미치는 영향을 살펴보았다. 동일 정당의 후보가 2명인 경우와 3명인 경우, 4명인 경우로 나누어 분석하였는데, 대부분의 경우에 '가' 기호를 배정받은 후보가 동일 정당 내의 타 후보에 비해 많이 득표한 것으로 밝혀져서 대책 마련이 필요한 것으로 나타났다. 또한 더불어민주당의 정당 내 후보가 2명인 경우와 자유한국당의 정당 내 후보가 2명인 경우 관내투표와 관외사전투표 간에 투표 성향의 차이가 있는 것으로 나타났다.

이중음성 판별에 있어 청지각적 평가의 임상적 유용성 (Clinical utility of auditory perceptual assessments in the discrimination of a diplophonic voice)

  • 배인호;권순복
    • 말소리와 음성과학
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    • 제10권1호
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    • pp.75-81
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    • 2018
  • Diplophonia is generally defined as the perception of more than one fundamental frequency component in a voice. Its perceptual aspect has traditionally been used to evaluate diplophonia because the perceptions can be easily evaluated, but there are limitations in the validity of the reliability of the intra- and inter-raters, examination situation, and variation of voice sample. Therefore, the purpose of this study is to confirm the reliability and accuracy of auditory perceptual evaluation by comparing non-invasive indirect assessment methods (sound waveform and EGG analysis), and to identify their usefulness with diplophonia. A total of 28 diplophonic voices and 39 non-periodic voices were assessed. Three raters assessed the diplophonia by performing an auditory perception evaluation and identifying the quasi-periodic perturbations of the acoustic waveform and EGG. Among the three discrimination methods, intra- and inter-rater reliability, sensitivity, specificity, accuracy, positive likelihood ratio, and negative likelihood ratio were examined, and the McNemar test was performed to compare the discriminant agreement. The accuracy of the auditory perceptual evaluation (86.57%) was not significantly different from that of sound waveform acoustic (88.06%), but it was significantly different from that of EGG (83.33%). The reading time (6.02 s) for the auditory perceptual evaluation was significantly different from that for sound waveform analysis (30.15 s) and EGG analysis (16.41 s). In the discrimination of diplophonia, auditory perceptual evaluation has sufficient reliability and accuracy as compared to sound waveform and EGG. Since immediate feedback is possible, auditory perceptual evaluation is more convenient. Therefore, it can continue to be used as a tool to discriminate diplophonia in clinical practice.