• 한국보건간호학회지
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• 제28권3호
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• pp.495-508
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• 2014

Purpose: This study was conducted in order to evaluate the reliability, validity, sensitivity, and specificity of the Short Form of Bobath Memorial Hospital Fall Risk Assessment Scale (BMFRAS-SF). Methods: A validation study was conducted on 207 elderly patients aged over 65 who were admitted to Bobath Memorial Hospital. Fall risk scores of BMFRAS, composed of eight subscales (age, fall history, physical activity, consciousness level, communication, fall risk factors, underlying disease, and medications) were assessed from the electronic medical record. BMFRAS-SF was derived from eight subscales of the BMFRAS representing the significance between fallers and non-fallers (fall history, physical activity, fall risk factors, underlying disease, and medications). Internal consistency reliability and interrater reliability were assessed by Cronbach's alpha and kappa coefficient. Validity was assessed by Spearman correlation analysis, factor analysis. Sensitivity, specificity, positive predictive and negative predictive values, and a receiver-operating characteristic curve (ROC) were generated. Results: Fallers had significantly higher risk scores than non-fallers in fall history, physical activity, fall risk factors, underlying disease, and medication scales. The BMFRAS-SF demonstrated acceptable Cronbach's alpha (.706) and kappa coefficients of .95. The BMFRAS-SF subscales showed good convergent validity and construct validity. The BMFRAS-SF presented good sensitivity(86.7%), specificity(67.9%), positive predictive value(42.9%) and good negative predictive value(94.8%) at a cut-off score of 5. Areas under the ROC curves were .860 for the BMFRAS and .861 for the BMFRAS-SF. Conclusion: The BMFRAS-SF was proved to be reliable and valid. It could be used for time-saving assessment and evaluation of the high risks for falls in clinical practice settings.

• 지역사회간호학회지
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• 제31권4호
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• pp.416-426
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• 2020

Purpose: The aim of this study was to evaluate the validity and reliability of the Korean version of Short-form Health Literacy Scale (HLS-SF-K12) for Adults. Methods: The English HLS-SF12 was translated into Korean with forward and backward translation. Survey data were collected from 204 adults who visited two hospitals in Korea. Content validity, construct validity, and known-groups validity were evaluated. Cronbach's α for internal consistency and test-retest were used to assess reliability. SPSS 21.0 and AMOS 21.0 software were used for data analysis. Results: The HLS-SF-K12 was composed of 12 items, and three subscales (health care, disease prevention, and health promotion). The instrument explained reliable internal consistency with Cronbach's α for the total scale of .89, and .74~.81 for subscales. The model of three subscales for the HLS-SF-K12 was validated by confirmatory factor analysis (Normed χ2=2.14 (p<.001), GFI=.92, RMR=.04, RMSEA=.08, CFI=.94, TLI=.92, IFI=.94). The hypothesis testing which analyzed the differences in health literacy by age and education level was satisfied. Conclusion: The HLS-SF-K12 is a valid and reliable instrument for measuring health information comprehension for adults in Korea.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2011년도 제42회 하계학술대회
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• pp.1548-1549
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• 2011

High voltage cryogenic insulation issues need to be addressed in order to promote the commercialization of high temperature superconducting (HTS) equipment. As a fundamental step in the development of the optimum bushings for HTS devices, the breakdown characteristics of liquid nitrogen mixed with liquefied insulating gases such as $N_2$, $SF_6$, and $CF_4$ have been investigated. In order to investigate the possibility of substituting $CF_4$ gas for $SF_6$ gas for the bushings of HTS electrical equipment, AC withstanding voltage tests have been performed. In this paper, finding the maximum electric field $E_{max}$ using utilization factor ${\eta}$. This result is applicable to developing the real scale HTS equipment of the design parameters.

• Asian Pacific Journal of Cancer Prevention
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• 제14권5호
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• pp.2731-2737
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• 2013

Background: This study evaluated the validity and reliability of applying the Katz's Activities of Daily Living (ADL) scale in an Iranian sample of elderly oncologic patients following initial cancer treatment. Materials and Methods: The scale was translated with the forward-backward procedure to give an Iranian version. The ADL scale was then applied in a random sample of 400 oncologic patients aged 60 and older following initial cancer treatment. Assessment of the scale stability was twice, with a 14-days (two weeks) interval, to 30 (of the 400) eligible elderly cancer patients in March 2012. To measure treatment effects, the index was run with 150 patients in a three month recall, following oncology processing. Exploratory and confirmatory factor analysis was performed for assessment of construct validity of the Katz's ADL. Reliability was measured with internal consistency (Cronbach's alpha co-efficient), and test/retest (Spearman's r value) of the instrument. Criterion validity was evaluated by comparing the Katz with Physical Function (PF) subscale of SF 36. Known-group validity was approved by comparing of Katz' ADL between quartile groups of PF subscale of SF 36. Results: In our study the ADL demonstrated a high degree of internal homogeneity (Cronbach's alpha 0.923). There was a high correlation between scores of two time measurement of Katz's ADL (p value of two- related- samples test was 0.3). Construct validity showed a correlation coefficient of 0.572 between the ADL and PF scores. In factor analysis, 2 factors were extracted. Evidence for the reliability of the questionnaire was good and known group validity was approved by significant differences of ADL score between quartiles of the PF subscale of SF36. Conclusions: The results suggest that the Iranian version of ADL applied for oncologic older adult patients following initial cancer treatment is a reliable and a valid clinical instrument and comparable to those reported in other studies.

• 한국초전도ㆍ저온공학회논문지
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• 제13권1호
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• pp.27-30
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• 2011

A sub-cooled liquid nitrogen cooling system is known as a most promising method to develop large scale superconducting apparatuses such as superconducting fault current limiters and superconducting cables [1]. Gaseous helium (GHe), gaseous nitrogen ($GN_2$) and sulfur hexafluoride ($SF_6$) are commonly used for designing an high voltage applied superconducting device as an injection gaseous medium [2, 3]. In this paper, the analysis on the dielectric characteristics of GHe, $GN_2$ and $SF_6$ are conducted by designing and manufacturing sphere-to-plane electrode systems. The AC withstand voltage experiments on the various gaseous insulation media are carried out and the results are analyzed by using finite element method (FEM) considering field utilization factors (${\xi}$). It is found that the electric field intensity at sparkover ($E_{MAX}$) of insulation media exponentially decreases according to ${\xi}$ increases. Also, the empirical expressions of the functional relations between $E_{MAX}$ and ${\xi}$ of insulation media are deduced by dielectric experiments and computational analyses. It is expected that the electrical insulation design of applied superconducting devices could be performed by using the deduced empirical formulae without dielectric experiments.

• 대한통합의학회지
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• 제9권3호
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• pp.59-68
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• 2021

Purpose : The purpose of this study was to investigate the lecture method and physical activity level of Korean university students during the COVID-19 pandemic to determine their effect on the students' mental health, self-efficacy, and learning motivation. Methods : A total of 203 participants (53 male, 150 female) completed the study. An online survey was distributed through a social media platform between March 24 and April 7, 2021. Participants completed the international physical activity questionnaire-short form (IPAQ-SF), COVID-19 stress scale for Korean people (CSSK), the Korean version of the general health questionnaire (KGHQ-30), and self-efficacy and learning motivation scales. Results : Among the general characteristics of the study subjects, there were statistically significant differences in the IPAQ-SF, CSSK, KGHQ, self-efficacy, and learning motivation measures by sex. There were no significant differences in the degree of IPAQ-SF, CSSK, KGHQ, self-efficacy, and learning motivation among any of the lecture method and university area groups. The level of physical activity corresponded with significant differences in KGHQ, self-efficacy, and learning motivation, excluding CSSK. There was a statistically significant positive correlation between IPAQ and self-efficacy (r=.273, p<.001), IPAQ-SF and learning motivation (r=.201, p<.01), CSSK and KGHQ (r=.271, p<.001), self-efficacy and learning motivation measures (r=.506, p<.001). There was a statistically significant negative correlation between IPAQ-SF and KGHQ (r=-.203, p<.01) and between KGHQ and self-efficacy (r=-.558, p<.001). Conclusion : CSSK and KGHQ measures were significantly higher in female students than in male students. Therefore, it is important to consider sex as a protective factor in the mental health management of university students in the context of an infectious disease pandemic. The results of this study suggest that university students should continue to engage in physical activities, even during a pandemic, and that it is necessary to prepare health management to improve mental health in such situations.

• 디지털융복합연구
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• 제16권6호
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• pp.251-258
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• 2018

종합병원 행정직원의 우울수준(CES-D: Center for Epidemiologic Studies Depression scale)과 관련된 융복합적 요인들을 조사하였다. 설문조사는 2017년 7월 3일부터 2017년 7월 29일까지 임의로 선정된 J지역 9개 종합병원의 재직자 201명에 대하여 무기명 자기기입식 설문지를 사용하였다. 위계적 다중회귀분석 결과, 자아존중감(RES: Rosenberg Self-Esteem Scale)이 낮을수록, 피로(MFS: Multidimensional Fatigue Scale)가 높을수록, 사회심리적 스트레스(PWI-SF: Psychosocial Well-being Index Short Form)가 높을수록 우울이 높았으며 이들의 설명력은 32.5%이었다. 이상의 연구결과를 볼 때, 종합병원 행정직원의 우울수준을 낮추기 위해서는 자아존중감을 높이고, 피로 및 사회심리적 스트레스를 낮추는 노력이 필요하다. 이러한 결과는 종합병원 행정직원의 우울수준을 낮추는 조직인사관리 및 산업보건교육에 활용될 수 있다. 추후연구에서는 종합병원 행정직원의 우울수준에 영향을 미치는 구조방정식 모형의 분석이 필요하다.

• 대한간호학회지
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• 제37권3호
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• pp.324-333
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• 2007

Purpose: The purpose of this study was to develop and evaluate a quality of life scale for Korean patients with cancer (C-QOL). Methods: The C-QOL was developed and validated as follows, item generation, pilot study, and psychometric tests. A total of 337 patients diagnosed with stomach, liver, lung, colon, breast, or cervix cancer were recruited. The patients were asked to complete the preliminary questionnaire comprising the content-validated items, the SF-36, and the ECOG performance status. The obtained data was analyzed using descriptive statistics, factor analysis, multidimensional scaling (MDS), multitrait/multi-item matrix, ANOVA, t-test, and Cronbach's alpha. Results: Preliminarily twenty-six items were generated through content validity and a pilot study. Factor analysis and MDS extracted a total of 21 items with a 5-point Likert-type scale (C-QOL). The C-QOL included five subscales: physical status (6 items), emotional status (6 items), social function (3 items), concern status (2 items), and coping function (4 items). The C-QOL established content validity, construct validity, item convergent and discriminant validity, known-groups validity, reliability, and sensitivity. Conclusion: The Newly developed C-QOL is an easily applicable instrument which established psychometric properties and reflected Korean culture. It is recommended for further study to examine the responsiveness of the C-QOL using a longitudinal research design.

• 한국심리학회지 : 코칭
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• 제5권2호
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• pp.127-170
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• 2021

본 연구는 한국의 일반 성인을 대상으로 삶의 중요 영역에서의 웰니스(wellness) 추구 행동을 측정하기 위한 척도를 개발하고 타당도를 검증하였다. 웰니스 척도개발을 위하여 문헌 검토, 전문가 인터뷰, 심층 인터뷰, 개방형 설문 1, 2차를 거쳐서 도출된 31개 요인, 182문항은 최종 10개 요인, 99문항으로 선정하였다. 한국의 일반 성인 351명을 대상으로 한 예비조사 결과의 탐색적 요인분석을 통해 10개 요인 58문항을 도출하였고, 각 요인에서 중요한 개념을 반영한 문항들을 일부 수정해서 10개 요인 63문항으로 본조사를 실시하였다. 667명을 대상으로 진행된 본조사에서는 본 검사의 구성개념 타당도를 검증하기 위해 전체 표집을 두 집단으로 나누어 한 집단은 탐색적 요인분석을 하고, 또 다른 집단은 확인적 요인분석을 하였다. 탐색적 요인분석 결과 최종적으로 10개 요인(일, 공동체, 가족, 타인, 경제력, 자아존중, 여가, 신체 건강, 영성, 자기 성장) 63문항을 도출하였으며, 구조방정식 모형을 이용한 확인적 요인분석에서는 모형적합도 기준을 충족하고 있는 것을 검증하였다. 도출된 웰니스 척도와 그 하위요인들이 실제로 웰니스를 측정하는지를 검증하기 위하여 정신적 웰빙 척도(K-MHC-SF)와 웰니스 지표(Wellness Index for Workers)를 사용하여 수렴 타당도가 검증되었다. 준거 관련 타당도 검증을 위해 주관적 행복감(Subjective Happiness Scale)과 삶의 만족 척도(Satisfaction with Life Scale) 변인과 요인들 간의 관계를 분석한 결과 유의한 상관으로 나타났다. 다중회귀분석을 통해 각 경로에 유의성을 확인한 결과 웰니스 척도의 '자아존중' 은 주관적 행복감과 삶의 만족감에 가장 중요하게 영향을 미치는 요인으로 확인되었다. 마지막으로 본 연구 과정과 결과에 대한 논의와 학문적 의의 및 실무적 의의, 그리고 제한점과 미래 연구 방향을 제시하였다.

• 수면정신생리
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• 제14권2호
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• pp.99-106
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• 2007

목 적：혈액투석을 받고 있는 만성신부전 환자들에서 하지불안증후군(restless legs syndrome, RLS)의 발생빈도와 삶의 질과의 관계에 대한 연관성을 평가하는 것을 목적으로 하였다. 방 법：고대안암병원 인공신장실에서 만성신부전증으로 혈액투석 중인 83명의 환자들을 대상으로 직접 면담과 설문지를 통해 International Restless Legs Syndrome Study Group(IRLSSG) 진단기준에 합당한 지를 검사하였고 International Restless Legs Scale(IRLS), Athens insomnia scale(AIS), Epworth sleepiness scale(ESS), Medical Outcome Study Short Form-36(SF-36)을 설문지를 통해 측정하였다. 또한 각 환자들의 정신적 상태와 우울증에 대한 선별을 위해 Clinical Global Impression(CGI)와 Hamilton Depression Rating Scale(HDRS)을 시행하였다. 결 과：31명(37.3%)이 IRLSSG 진단기준에 합당한 RLS 환자로 판명이 되었고 RLS 증상을 가지는 환자들은 51.8%에 이르렀다. RLS로 판정된 경우에는 높은 AIS, ESS, HDRS, CGI 점수와 통계적으로 유의한 관련성이 있었다. 또한 RLS 환자로 판정된 경우 낮은 SF-36 총점, 신체적 정신적 요소 점수를 보였고 특히 세부항목으로는 낮은 신체적 역할 제한, 전반적인 건강상태, 신체적 역할제한, 정신적 역할제한, 정신건강 점수와 통계적으로 유의한 관련성이 있었다. 결 론：혈액투석을 하는 만성신부전 환자에서 높은 RLS 유병률을 보이고 있다. RLS를 동반한 경우는 동반하지 않은 경우보다 전반적인 삶의 질의 저하를 보였고 세부적으로는 역할의 제한, 전반적인 건강 및 정신건강 상태 항목에서의 저하가 뚜렷하게 나타났다.