• 제목/요약/키워드: clinical statistics

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Understanding noninferiority trials

  • Hahn, Seokyung
    • Clinical and Experimental Pediatrics
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    • 제55권11호
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    • pp.403-407
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    • 2012
  • Noninferiority trials test whether a new experimental treatment is not unacceptably less efficacious than an active control treatment already in use. With continuous improvements in health technologies, standard care, and clinical outcomes, the incremental benefits of newly developed treatments may be only marginal over existing treatments. Sometimes assigning patients to a placebo is unethical. In such circumstances, there has been increasing emphasis on the use of noninferiority trial designs. Noninferiority trials are more complex to design, conduct, and interpret than typical superiority trials. This paper reviews the concept of noninferiority trials and discusses some important issues related to them.

일 종합병원 입원환자의 진료과별 낙상특성 및 위험요인 (Fall Risk Factors and Characteristics of an Acute Hospital Setting across Clinical Departments)

  • 장인실;이순교
    • 기본간호학회지
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    • 제21권3호
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    • pp.264-274
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    • 2014
  • Purpose: This study was done to determine inpatient fall rates in an acute hospital setting and to explore risk factors and characteristics across clinical departments. Methods: The medical records and standardized fall reports of 416 patients admitted between January 1 and December 31, 2012 were reviewed. Descriptive statistics and statistical tests were used, including: t-test, ${\chi}^2$-test, ANOVA. Results: The total fall rate per 1,000 inpatient days was 0.49. Fall rate, fall risk factors and characteristics such as age, type of fallers and mean MFS (Morse Fall Scale) differed significantly among clinical departments. Conclusions: The analysis results show that the fall rates, fall risk factors and characteristics of acute hospital inpatient falls varied significantly across clinical departments. The findings of this study suggest that hospitals should consider differences in fall related characteristics across clinical departments when implementation fall prevention strategies and interventions.

간호대학생의 비판적 사고성향과 임상수행능력에 관한 연구 (A Study on the Critical Thinking Disposition and Clinical Competency of Nursing Students)

  • 조학순
    • 한국간호교육학회지
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    • 제11권2호
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    • pp.222-231
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    • 2005
  • Purpose: The purpose of this study was to identify the relationship between critical thinking disposition and clinical competency of nursing students. Method : The sample consisted of 151 nursing students, who have ever had clinical practice. Data were collected by self reporting questionnaire for 13 days from April 18-30, 2005. The data were analyzed by descriptive statistics, t-test, ANOVA, Duncan test, Pearson Correlation Coefficient with SPSS Programs. Result : The result of this study were as follows : 1. The total mean score of critical thinking dispositions in the nursing students was moderately(3.50). There was a statistically significant difference in critical thinking disposition according to satisfaction with the nursing major(F=5.563, p=.005). 2. The total mean score of clinical competency in the nursing students was slightly high(3.37). There was a statistically significant difference in clinical competency according to adaptation with the nursing major(F=5.202, p=.007), satisfaction with clinical practice(F=3.172, p=.045). 3. A significant positive correlation between critical thinking disposition and clinical competency was founded(r= .421, p<.000). Conclusion : In conclusion, this study revealed that critical thinking disposition influences clinical competence. Therefore, the finding of this study may provide significant basic data for nursing education and nursing practice.

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임상시험 대상자가 지각한 임상연구 간호사의 의사소통 유형과 간호서비스 만족도 (The Communication Styles and Nursing Service Satisfaction of Clinical Research Nurses Perceived by Clinical Subjects)

  • 서미선;박영임
    • 한국간호교육학회지
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    • 제22권4호
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    • pp.559-566
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    • 2016
  • Purpose: This study aimed to examine the communication styles and nursing service satisfaction of clinical research nurses perceived by clinical subjects. Methods: The data were collected with self-administrated questionnaires after receiving consents from 200 clinical trial subjects. The data were analysed with descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients and stepwise multiple regression analysis using SPSS 21.0 statistic program. Result: Clinical subjects perceived that clinical research nurses used the informative, affective, and non-authoritative communication styles. The study identified factors influencing the nursing service satisfaction, and they were the informative communication styles (${\beta}$=.34, p<.001) and affective communication styles (${\beta}$=.35, p<.001, $R^2$=37%) by multiple linear regression. Conclusion: If educational programs on communication are developed to help clinical research nurses use the informative and affective communication styles according to the characteristics of subjects and applied to the field of practice, they will be able to increase the nursing service satisfaction and contribute to the higher quality of clinical trials.

응급구조(학)과 학생의 스트레스, 우울, 대처방법 및 임상실습 만족도 (Stress, depression, coping styles and satisfaction of clinical practice in EMT-paramedic students)

  • 고봉연;이정은
    • 한국응급구조학회지
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    • 제16권3호
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    • pp.77-89
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    • 2012
  • Purpose : The purpose of the study was to investigate the relationship between stress, depression, coping styles, and satisfaction of clinical practice in paramedic students. Methods : The study was conducted to 221 paramedic students who have experienced clinical training from March until June in 2012. Questionnaires consisted of level of stress, depression, coping styles, and satisfaction of clinical practice. The data were analyzed using descriptive statistics, t-test, ANOVA, and Pearson's correlation coefficient. Results : The mean score of stress was $2.69({\pm}.69)$, depression was $19.09({\pm}9.41)$, coping styles was $3.17({\pm}.47)$, and satisfaction of clinical practice was $3.61({\pm}.58)$. Stress had a significant positive correlation with depression and a negative correlation with active coping and satisfaction of clinical practice. Depression had a significant positive correlation with passive coping and a negative correlation with satisfaction of clinical practice. Active coping had a significant positive correlation with passive coping and satisfaction of clinical practice. Conclusion : There was a positive effect on decreasing stress and depression in paramedic students, and encouraging positive coping when the students received counseling and instruction for clinical practice.

Regional Differences in Access to Clinical Trials for Cancer in Korea

  • Kim, Woorim;Jang, Seongkyeong;Chang, Yoon Jung
    • 한국의료질향상학회지
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    • 제27권1호
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    • pp.20-25
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    • 2021
  • Purpose: The ability to access clinical trials for cancer treatment is important. This study investigated whether regional differences exist in oncologic clinical trial protocols conducted in South Korea. Methods: Records of all approved oncologic clinical trials conducted in 2019 were downloaded from the Republic of Korea Ministry of Food and Drug Safety. The study covered Seoul, the capital area, other metropolitan cities, and provincial areas. Descriptive statistics summarized the distribution patterns of clinical trials by region. Results: A total of 202 oncologic clinical trials were conducted in 63 institutions in 2019. Of these protocols, 186 (92%) were available in Seoul, 120 (59%) in the capital area, 64 (32%) in metropolitan cities, and 66 (33%) in provincial areas. More regional differences in protocol availability were observed in domestic trials, investigator-initiated trials, phase 1 and 2 trials, and smaller-scale trials. Conclusion: Most oncologic clinical trials were conducted in medical institutions located in Seoul, with the rest conducted in the capital area, metropolitan cities, and provincial areas. The findings reveal clear differences in protocol availability between Seoul and the other regions. Measures designed to improve geographical access to oncologic clinical trials may be needed given their growing importance in cancer treatment.

Factors Related to Clinical Competence among Graduating Nursing Students during the COVID-19 Pandemic: A Cross-Sectional Study

  • Chung, Su Kyoung;Kim, Jinsook;Bhandari, Pratibha
    • 대한간호학회지
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    • 제53권2호
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    • pp.145-154
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    • 2023
  • Purpose: This study investigated clinical competency, COVID-19-related anxiety, coping strategies, self-efficacy, and perceived stress among graduating nursing students during the COVID-19 pandemic. Methods: We conducted a cross-sectional survey. Participants were recruited from universities located in four major cities in South Korea. General demographic information, clinical competency, self-efficacy, perceived stress, COVID-19-related anxiety, and coping strategies were assessed using reliable questionnaires. Descriptive statistics, correlations, and multiple regression tests were used to analyze the data. Results: The mean clinical competency, self-efficacy, perceived stress, adaptive coping, and maladaptive coping were 138.16 ± 18.34, 83.85 ±14.02, 21.37 ± 5.79, 53.15 ± 4.64, and 30.98 ± 6.73, respectively. COVID-19-related anxiety was reported by 4.3% of participants. Clinical competency was significantly positively correlated with self-efficacy (r = .44, p < .001) and adaptive coping (r = .20, p = .035) and was significantly negatively correlated with maladaptive coping (r = .20, p = .035). The predictors of clinical competency were self-efficacy (β = .434, p < .001) and adaptive coping (β = .173, p < .039), which explained 23% of the variance in clinical competency. Conclusion: Self-efficacy and adaptive coping strategies are significant predictors of clinical competence during the pandemic. Planning and implementing various curricular and non-curricular activities to increase senior students' self-efficacy and adaptive coping strategies will help prepare competent nursing graduates for the pandemic when they enter the nursing workforce.

간호대학생의 임상실습 중 경험한 언어폭력, 임상실습 스트레스 및 스트레스 대처가 전공 만족도에 미치는 영향 (The effect of verbal violence, clinical practice stress, and coping with stress on nursing students' major satisfaction during clinical practice)

  • 허희정;송영숙
    • 한국간호교육학회지
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    • 제29권2호
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    • pp.190-198
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    • 2023
  • Purpose: This study was conducted to identify the effect of verbal violence, clinical practice stress, and coping with stress on the major satisfaction in nursing students during clinical practice. Methods: A cross-sectional study was used. A survey was conducted from May 3 to May 10, 2022, on 200 nursing students who were in their junior and seneior years at two universities in Gyeongsangbuk-do. Descriptive statistics, frequency analysis, independent t-test, one-way ANOVA, Scheffé's test, Pearson correlation coefficient, and hierarchical regression analysis were employed to analyze the data. Results: Major satisfaction was found to be significantly negatively correlated with verbal violence (r=-.30, p<.001) and clinical practice stress (r=-.15, p=.032) and to be positively correlated with coping with stress (r=.24, p<.001). Their satisfaction with clinical practice (β=.29, p=.037), verbal violence (β=-.23, p<.001), coping with stress (β=.16, p=.015), religion (β=.14, p=.041), and clinical practice stress (β =-.13, p=.048) explained 19.3% of the variance in nursing students' major satisfaction during clinical practice. Conclusion: A verbal violence and coping with stress program for nursing students should be developed to increase nursing students' major satisfaction during clinical practice.

치위생(학)과 학생의 비판적 사고성향, 임상실습만족도, 임상수행능력에 관한 연구 (Study on critical thinking, clinical practice satisfaction, and clinical performance of dental hygiene students)

  • 김수경
    • 한국치위생학회지
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    • 제19권6호
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    • pp.1037-1046
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    • 2019
  • Objectives: This study was conducted to test the critical thinking tendency, clinical practice satisfaction, and clinical performance, and analyze the factors impacting clinical practice satisfaction and clinical performance of dental hygiene students. Methods: The study conducted a written survey during the period between 30 July ~20 August 2019, among 3rd and 4th year dental hygiene students from Seoul, Gyung-gi region, who had taken clinical practice courses. Using SPSS 22.0 program (IBM SPSS statistics, New York, USA), the study analyzed the final 174 cases. Results: Dental hygiene students scored 3.33±0.43, 3.48±0.83, and 3.30±0.58 for critical thinking, clinical practice satisfaction, and clinical performance, respectively. The clinical thinking score was higher when their study performance was good (p<0.001), clinical practice satisfaction was higher when their major satisfaction was satisfactory (p<0.001), higher when their relationship with their clinical practice partner was good, and the clinical performance was better when the students' major satisfaction was good (p<0.001). The study performance yielded better results when their study achievement was better (p<0.05). Clinical practice satisfaction (r=0.156) and clinical performance (r=0.393) showed a positive correlation with critical thinking, and clinical performance had a positive correlation with clinical practice satisfaction. The impact factor for clinical practice satisfaction appeared to be clinical performance (p<0.05) and major satisfaction (p<0.001), and the factors impacting the clinical performance were among the sub-causes of critical thinking (p<0.05), intellectual fairness (p<0.05), watchfulness (p<0.05), clinical practice satisfaction (p<0.05), and major satisfaction (p<0.01). Conclusions: Results of the study showed that for dental hygiene students, critical thinking, clinical practice satisfaction, clinical performance, and major satisfaction were the impact factors affecting the students' clinical performance. Therefore, the study recommends that development of educational programs and operation of a field-based curriculum is necessary to improve critical thinking, clinical practice satisfaction, and major satisfaction.

임상 자료 분석을 위한 NORMAL TEST VARIABLE(NTV)의 고찰 (Using a Normal Test Variable(NTV) for clinical research)

  • 이제영;우정수;최달우
    • 응용통계연구
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    • 제11권1호
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    • pp.129-139
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    • 1998
  • 임상자료의 정규성 검정에 있어서 NTV(Normal Test Variable)에 관한 몇가지 문제점을 여러 가지 특정분포 즉, 정규분포, 두 정규분포의 혼합분포, 균일분포, 지수분포 그리고 오른쪽을 치우친 베타분포에 관한 몬테칼로 모의실험 결과를 통하여 고찰하고 그 해결방안을 모색한다.

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