• Title/Summary/Keyword: 분산분석, ANOVA

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The Levels of Anxiety and Depression according tn the Stages of Autologous and Allogeneic Hemopoietic Stem Cell Transplantation (자가 및 동종 조혈모세포이식환자의 이식단계에 따른 불안과 우울)

  • Choi, So-Eun;Lee, So-Young;Park, Hae-Ryung;Park, Ho-Ran
    • Journal of Hospice and Palliative Care
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    • v.8 no.2
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    • pp.190-199
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    • 2005
  • Purpose: Objectives of this study was to investigate the level of anxiety and depression according to the stages of autologous and allogeneic hematopoietic stem cell transplantation (HSCT). It would be provide the basis for effective psycho-emotional nursing intervention. Methods: We report on 52 patients, including 19 with autologous HSCT, and 33 with allogeneic HSCT from August 2002 to August 2003, at a university hospital. Spielberger's State-Trait Anxiety Inventory and Jung's Depression Inventory were used to measure levels of anxiety and depression, respectively, at admission time, the day before HSCT, and discharge time. Data was analyzed using SAS program that included Chi-square test, Fisher's exact test, repeated measures ANOVA and Stepwise multiple regression analysis. Results: In all stages of HSCT, the level of anxiety of patients who underwent allogeneic HSCT was significantly higher than that of autologous HSCT (P=0.047). The depression at the day before HSCT was significantly higher than that at admission. The major variable affecting anxiety in autologous HSCT was depression. Specially depression and gender were significant predictors to explain anxiety in allogeneic HSCT at admission time (61%). Experience of relapse and gender were significant predictors to explain anxiety in allogeneic HSCT at discharge time (36%). Conclusion: We recommend that the anxiety and depression be researched during the stages of allogeneic HSCT, specifically in the day before HSCT. It is necessary to develop an effective psycho-emotional nursing intervention according to the stages of HSCT.

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A Study on the Impact of Human Factors for the Students Pilot's in ATO -With Respect to Korea Aviation Act and ICAO Human Factors Training Manual- (항공법규에 의거 지정된 조종사 양성 전문교육기관의 학생조종사에 대한 휴먼팩터 영향 연구)

  • Lee, Kang-Seok
    • The Korean Journal of Air & Space Law and Policy
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    • v.26 no.2
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    • pp.149-179
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    • 2011
  • Statistics of aviation accident in Korea show that safety level of training flights is high. However, more than 80% of aviation accidents happen owing to human factors. And because most reasons of them are concerned with pilot error, it is very important for student pilots who will transport a lot of passengers to develop the knowledge of safety and abilities of risk management for preventing accidents. In this study, in order to investigate the Human Factors which affect safety in training student pilots for flight, verified the correlationbetween experiences of accident, the differences according to the experience level of training flight and the differences between college student pilots and ordinary student pilots on the basis of human factors that composes the SHELL models. For the study, Using SPSS 17.0, conducted Correlation Analysis, Analysis of Variance(ANOVA) and t-test. To sum up the result of this study, student pilot's ability and equipment in the cockpit are the important factors for safety when pilots are training flight. Also the analysis of the differences between human factors according to the characters of student pilots' groups shows that college student pilots are affected by immanent factors and organizational cultures. So far, there haven't been any accidents which is related with human casualties when training at the ATO(Approved Training Organization). But accidents can occur at any time and anywhere. Especially the human factors which comprises most of aviation accident have a wide reach and are impossible to be eliminated, therefore, it is best to minimize them. Because ATO is the starting point to lead the aviation industry of Korea, we will have to be aware of problems and improve education/training of human factors.

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The Needs Assessment of Middle School Students for Practical Reasoning Home Economics Classes in the Distance Learning Environment (원격학습 환경에서 가정교과 실천적 추론 과정에 대한 중학생의 요구도 조사연구)

  • Choi, Seong-Youn
    • Journal of Korean Home Economics Education Association
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    • v.33 no.1
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    • pp.1-16
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    • 2021
  • The purpose of this study was to investigate the needs of middle school students for the practical reasoning in a distance learning environment, to verify the needs differences based on the learner's personal characteristics, student-teacher interaction, and student-student interaction, and to investigate the relationships among student-teacher interaction, voluntary participation of students, and the students' perception of the extent to which practical reasoning is implemented in distance learning. For this purpose, 1,842 middle school students from seven schools in Gyeonggi, Daejeon, Chungbuk, and Sejong areas were surveyed online to investigate the importance of the practical reasoning questions and the how much practical reasoning is implemented in current distance learning. Among them, 1,095 responses were used for final analysis and descriptive statistics, independent sample t-test, one-way ANOVA, and path analysis were conducted. As a result of the study, first, middle school students acknowledged that the practical reasoning was important with the importance average 3.76. Based on the locus for focus model, the priorities of the needs in home economics class were examined, and the values and importance of the problem, and the ramification of the solution were considered to be of high priority. Second, characteristics of middle school students, student-teacher interaction and student-student interaction were found to have positive influence on needs for practical reasoning, while no difference were found by gender or voluntary participation in distance learning. Third, the voluntary participation of students and the student-teacher interaction in distance learning had a positive (+) significant effect on perceived implementation of practical reasoning, yet negative (-) significant effect on needs for practical reasoning.

Association Between Structural and Functional Aspects of Social Networks and Health Promoting Behaviors: Focusing on Community-Dwelling Older Adults (사회적 관계망의 구조적, 기능적 측면과 건강증진행동과의 관계: 지역사회 거주 노인을 중심으로)

  • An, Hyunseo;Kim, Inhye;Yun, Sohyeon;Park, Hae Yean
    • Therapeutic Science for Rehabilitation
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    • v.12 no.4
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    • pp.81-96
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    • 2023
  • Objective : This study aimed to examine the association between the structural and functional aspects of social networks and health-promoting behaviors in community-dwelling older adults. Methods : Social networks based on structural and functional aspects and health-promoting behaviors by lifestyle were measured in 226 community-dwelling adults aged 65 years and over. To analyze the collected data, an independent t-test, one-way ANOVA, Pearson's correlation analysis, and hierarchical regression were performed. Results : The network size was the highest in the friend network, and the frequency of contact and social support was the highest in the non-living family network. Health-promoting behaviors were highest for activities of daily living and lowest for productive and social activities. All subfactors of social networks showed significant positive correlations with health-promoting behaviors. Hierarchical regression showed social support from neighbors as the variable with a significant effect on health-promoting behaviors; gender and depression were also influencing factors, and this model showed 37% explanatory power. Conclusion : To promote healthy behaviors of older adultsin the community, the development of health promotion programs and related policies considering social networks centering on social support from neighbors is required.

Satisfaction of the aged with their dental treatments and consideration of the necessity for dental hygienic education about the aged (노인환자의 치과진료만족도 및 노인에 대한 치위생교육의 필요성에 대한 고찰)

  • Yun, Kyoung-Ok;Kim, Jin-Soo;Kim, Sook-Hyang
    • Journal of Korean society of Dental Hygiene
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    • v.10 no.4
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    • pp.765-775
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    • 2010
  • Objectives : 노인 환자들이 제공받고 있는 치과 의료서비스 만족도를 평가하여 노인 환자에게 양질의 구강보건진료 서비스를 제공하고 노인의 구강보건향상에 기여하기 위하여 실시하였다. 이와 같은 연구목적을 달성하기 위하여 노인관련 일반적 특성을 알아보고, 치과 병 의원을 이용하는 노인 환자의 만족도에 미치는 요인 및 병 의원 선택이유를 조사하였다. Methods : 서울특별시와 경기도, 경상도, 전라도 일부지역의 치과병원 및 치과의원을 이용하는 노인 환자 300명을 편의추출 하였으며, 2009년 4월 1일부터 5월 8일까지 면접 및 자기기입법으로 설문조사를 실시하였다. 설문지는 4개영역으로 구분하여 치과 의료서비스 만족도 22문항, 치과위생사의 의료서비스 만족도 14문항, 재이용 권유의사 4문항 및 일반적 특성과 치과이용에 관한 8문항으로 구성하였다. 노인환자의 일반적인 특성에 따른 치과 의료서비스 만족도, 연구대상자의 병원인지경로, 치과선택이유에 따른 치과의료서비스 만족도는 일원배치분산분석(One-way ANOVA)을 실시하였다. 치과의료서비스 만족도 영향인자, 만족도에 미치는 치과위생사 요인 등은 다중회귀분석을 실시하였다. 연구대상자의 성별과 병원내원기간에 따른 치과선택이유는 카이제곱 (${\chi}^2$) 분포를 따르는 정확검정(exact test)을 실시하였다. Results : 1. 노인환자들이 병원을 선택할 때 가족, 친척으로부터 추천을 받는 경우가 가장 많으며 이 경우 다른 인지경로에 비하여 치과에 대한 만족도가 가장 높았다. 2. 치과선택 이유에 따른 만족도를 비교하였을 때 첫째, 의사의 높은 진료수준, 둘째, 친절한 서비스에 만족도가 높았다. 또한 치과선택이유가 의사의 높은 진료수준과 친절함을 포함한 의사요인이 가장 중요한 것으로 나타났다. 3. 치과위생사의 높은 진료수준과 친절도는 치과의료서비스 만족도에 유의한 차이를 나타내었다. 노인환자들의 만족도를 높이기 위해 노인에 대한 치위생교육이 필요하고 노인에 대한 지식뿐만 아니라 태도에 대한 교육도 실시되어야 한다. 4. 동일한 치과를 계속적으로 다니는 이유는 첫 번째 의사의 높은 진료수준, 두 번째 친절도로 의사요인과 관련이 가장 높은 것으로 나타났다. 또한 3-4년 이상의 장기내원환자는 의사의 높은 진료수준 다음으로 친절도를 중요한 이유로 선택하였다. Conclusions : 이상의 결과로 노인 환자가 만족하는 치과는 치과의사와 치과위생사의 진료수준이 높아야 하겠고, 다음으로 친절한 서비스가 중요함을 알 수 있었다. 또한 노인환자들의 만족도를 높이기 위해 노인에 대한 치위생교육이 필요하고 노인에 대한 지식뿐만 아니라 태도에 대한 교육도 실시되어야 한다.

A study on image distortion improvement using silicon device in thyroid diffusion MRI images (갑상선의 확산강조영상 검사 시 실리콘 이용한 뒤틀림 감소에 관한 연구)

  • Choi, Kwan-Woo;Seo, Dae-Keon;Lee, Ho-Beom;Goh, Hee-Jin;Na, Sa-Ra;Han, Dong-Kyoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.7
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    • pp.4380-4386
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    • 2014
  • This study was conducted to minimize the imaging distortion by reducing the differences in susceptibility between the tissue and air surrounding it while performing a thyroid diffusion imaging procedure. The study group was composed of 23 healthy adults. Thyroids with many distortions near the air, larynx, and trachea were chosen to test and evaluate the diffusion imaging difference between before and after an application of silicon. As a result, there was reduced distortion with silicon application, and the differences decreased from 30% to 10%. According to One-way ANOVA and Duncan's post-hoc test, there were no significant differences between imaging with a silicon application and T2 imaging of the surface area, which was the standard image. In conclusion, this study presented a radical improvement in reducing the distortions in imaging by compensating for an uneven tissue surface near air without affecting the magnetic resonance contrast and complicating the imaging processes.

Survey on the Discharge Planning of Occupational Therapists (국내 작업치료사의 퇴원계획 개입에 대한 실태 조사연구)

  • Hwang, Na-Kyoung;Yoo, Eun-Young
    • Therapeutic Science for Rehabilitation
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    • v.9 no.2
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    • pp.55-71
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    • 2020
  • Objective : The purpose of this study was to investigate the necessity of occupational therapist's involvement in patient discharge planning, the areas that should be considered for discharge screening and planning, and to provide the basic data required for the development of a discharge assessment tool. Methods : We conducted an online questionnaire survey of 60 occupational therapists who were working at medical institutions and had agreed to participate in the study. The questionnaire was composed of 36 questions regarding the general characteristics of the current discharge planning process and the necessity of discharge assessment and planning. Descriptive statistics, an independent t-test, and a one-way ANOVA were conducted using SPSS 20.0. As for the post-hoc test, Scheffe's test was used. Results : The awareness of occupational therapist's role in discharge planning and the necessity of a discharge assessment tool were high, but the occupational therapist's awareness of discharge-related knowledge was low. The difficulties in discharge planning showed high response rate in the absence of adequate fee-for-service in the patient interview and assessment and the lack of team approach and appropriate assessment tools for discharge planning. The high-needs areas for evaluation during discharge were fall risk and BADL, and the low-needs areas were well-being and functional level prior to onset. Conclusion : This study is expected to provide preliminary information necessary for the development of a discharge assessment tool for effective discharge planning.

Biomechanical Evaluation of Trekking Shoes using 3D Bootie Method as Mimics Barefoot Form (맨발 구조를 모사한 3D Bootie 공법을 적용시킨 트레킹화의 생체역학적 특성 평가)

  • Yoo, Chan-Il;Jeon, Keun-Hwan;Won, Yonggwan;Kim, Jung-Ja
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.7
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    • pp.4689-4696
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    • 2015
  • The purpose of this study was to evaluate biomechanical characteristics of trekking shoes using 3D Bootie method as mimics barefoot form of F Co. that provides the best comfort and plantar pressure dispersion. The control group is normal trekking shoes of M Co. and K Co.. 13 healthy males measured the foot pressure, EMG and GRF. Collected data was analyzed using One-way ANOVA in order to investigate the effects of each trekking shoes. The results are as follows: Trekking shoe of F Co. was significantly wider in contact area than others at MF and significantly lower in maximum force, peak pressure than others at RF. In the case of muscle activity, acted in the same way as the effect of barefoot walking. In the case of GRF, effectively absorbed the impact force, so it is possible to efficient walking. As a result of the analysis, trekking shoe using of 3D Bootie method of F Co. can be efficient walking by reducing the load of foot during walking.

The validity of transcranial radiography in diagnosis of internal derangement (악관절 내장증 평가 시 경두개 방사선사진의 임상적 유용성: MRI와의 비교연구)

  • Lee, In-Song;Ahn, Sug-Joon;Kim, Tae-Woo
    • The korean journal of orthodontics
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    • v.36 no.2 s.115
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    • pp.136-144
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    • 2006
  • The purpose of this study was to determine whether association exists between temporomandibular joint (TMJ) characteristics in transcranial radiographs and TMJ internal derangement and to evaluate the validity of transcranial radiographs in diagnosis of internal derangement. Transcranial radiographs and magnetic resonance imaging (MRI) of 113 TMJs from 76 subjects were used for this study and all TMJs were classified into 3 groups according to the results of MRI: normal disk position, disk displacement with reduction, and disk displacement without reduction. Transcranial analysis included linear measurement of joint spaces and condylar head angle measurement. To determine any relationship between transcranial measurements according to disk displacement, one-way ANOVA was used. The results showed that condyle-fossa relationship in standard transcranial radiographs had no relationships with disk displacement. And, as disk displacement progressed, condylar angle between head and neck increased significantly. This result can be interpreted that condylar head angle reflects structural hard tissue change according to internal derangement progress. But this is insufficient in the determination of internal derangement. Therefore, although still clinically helpful, the validity of standard transcranial radiographs to diagnose TMJ internal derangement was questioned.

The study on the utilization of the customer review when buying fashion products at the internet shopping malls - Focusing on the high school students in Seoul - (인터넷 쇼핑몰에서 패션제품 구매시 구매후기 이용에 대한 연구 - 서울지역 고등학생을 중심으로 -)

  • Jung, Myung-Hwa;Shin, Hye-Won
    • Journal of Korean Home Economics Education Association
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    • v.22 no.3
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    • pp.129-145
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    • 2010
  • In this study, when buying fashion products through internet shopping malls, it is researched about the buying behavior, the awareness of customer review, the use and posting of customer review and the accompanying awareness. The difference of awareness on the customer review according to their involvement of clothes, are examined from high school students in Seoul. And it is examined if they experienced any dissatisfaction after their purchase and what their behavior were. The questionnaire survey was taken by 508 students from 6 high schools in Seoul. The average, the standard deviation, the frequency, the t-test, the One way ANOVA and Duncan's Multiple Test were conducted for data analysis using SPSS 17.0. In the fashion products purchase behavior of the students, The reasons of buying were mainly because of the diversity and the convenience. Some students don't shop online because screen product and actual product are not the same. The awareness of the customer review represented high in the reliability and usefulness. The awareness on the influence of the customer review represented high in the contents direction and the numbers of the customer reviews but represented low in the timeliness. As to the awareness of the customer review, the student using it represented higher in all elements such as the usefulness, the reliability, and the influence than students who not use customer review. The students posting customer review recognized higher on the usefulness and the reliability of the customer review than those who did not post it, and were highly influenced by the numbers of customer reviews. The awareness of the customer review according to the involvement of clothes was the difference only in the usefulness. As to coping actions of students experiencing dissatisfaction, the proportion of the students coping with the public action and those who do not perform any action represented high.

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