• Journal of Korean Biological Nursing Science
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• 제22권4호
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• pp.249-259
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• 2020

Purpose: Carbapenemase-producing Enterobacteriaceae (CPE) are associated with considerable mortality. This study was aimed to identify survival factors among medical care unit patients with CPE. Methods: We conducted a retrospective cohort; data were collected from September 2017 to June 2019 through electronic medical records. The data collected were general characteristics, disease-related characteristics, severity-related characteristics, and treatment-related characteristics. Data were analyzed based on frequency, mean, standard deviation, Chi-square test, Fisher's exact test, t-test, Pearson's correlation coefficient, and Cox proportional hazard model using SPSS/WIN 21.0 program. Results: Seventy-seven patients were included (59 survivors and 18 deceased) in the study. Univariate analysis identified factors for survival associated with acquired CPE as age (t= -1.56, p= .037), simplified acute physiology 3 (SAPS3) score of admission date (t= -2.85, p= .006), Glasgow coma scale (GCS) of CPE acquisition date (t= 2.38, p= .020), artery catheter at CPE acquisition date (χ²= 4.58, p= .032), vasoconstrictor agents use at CPE acquisition date (χ²= 6.81, p= .009), platelet at CPE acquisition date (t= 2.27, p= .025), lymphocyte at CPE acquisition date (t= 2.01, p= .048), calcium at CPE acquisition date (t= 2.68, p= .009), albumin at CPE acquisition date (t= 2.29, p= .025), and creatinine at CPE acquisition date (t= 2.24, p= .028). Multivariate Cox proportional hazard model showed that GCS at CPE acquisition date (HR= 1.14, 95% CI= 1.05-1.22), lymphocyte at CPE acquisition date (HR= 1.05, 95% CI= 1.00-1.10), and creatinine at CPE acquisition date (HR= 1.25, 95% CI= 1.04-1.49) were independent survival factors among medical intensive care unit patients with CPE. Conclusion: Based on the study results, it is necessary to develop nursing interventions that can aid in the management of patients with CPE and identify their effects.

• Communications for Statistical Applications and Methods
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• 제2권2호
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• pp.1-12
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• 1995

Let F be a life distribution with finite mean $\mu$ Then F is said to be in new better then worse than used in expectation (NBWUE(p)) class if $\varphi(u) {\geq} u$ for $0 {\leq}u{\leq}t_0$ and ${\varphi}(u) {\leq} u$ for $t_0< u {\leq} 1$ where ${\varphi}(u)$ is the scaled total-time-on-test transform and $p=F(t_0)$. We propose a testing procedure for $H_0$ : F is exponential against $H_1$ : NBWUE(p), and is not expontial, (or $H_1\;'$ : F is NWBUE (p), and is not exponential) using randomly censored data. Our procedure assumes kmowledge of the proportion p of the population that fail at or before the change-point $\t_0$. Know ledge of $\t_0$ itself is not assumed. The asymptotic normality of the test statistic is established and a Monte Carlo experiment is performed to investigate the speed of convergence of the test statistic to normality. The power of our test is also studied.

• 대한간호학회지
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• 제29권2호
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• pp.248-257
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• 1999

The purpose of this study was to identify basic data for the health fare of normal pregnant women. The number of subjects was 779 pregnant women who received prenatal care in two University hospitals. The data, which were collected from June to October, 1998. and used the questionnaire “Symptom Table on Fatigue Perception” designed by the Research Committee of the Industial Fatigue in Hygienic. Association of Japan Industry. The collected data were scored by use of means and standard deviations according to the subjective symptoms of fatigue and each item as an independent variable was analysed by t-test and ANOVA test. The results are as follows : 1) Degree of subjective fatigue showed as an average of 1.81. Fatigue as physical symptoms had the highest score with 2.09. followed by neuro-sensory symptoms, 1.69 and psychological symptoms had the lowest score 1.66. 2) With the respect to the general characteristics of the subjects. there were statiscally significant difference in experience of pregnancy(t＝-2.286, p＝.023). wanted pregnancy(t＝-2.935, p＝.004), parity(t＝-2.429, p＝.015), sleeping time(F＝3.478, p＝.031). and presence of other child(t＝2.347, p＝0.19).

• Journal of Advanced Marine Engineering and Technology
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• 제37권2호
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• pp.135-143
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• 2013

마찰교반용접은 운송 분야 등에서 널리 상업화되고 있다. 본 연구는 마찰교반용접된 A2024-T4 합금의 결함을 비파괴검사(방사선투과검사, 초음파탐상시험, 전기전도도시험)와 파괴시험(인장강도 및 미세조직 관찰)을 실시하여 관찰하였다. 실험 결과 결함 분포도를 얻을 수 있었다. 방사선투과검사에서 발견되지 않은 미세결함이 초음파탐상시험에서는 발견되었으며, 초음파탐상시험은 음압의 차이와 그에 대응하는 색에 의해 결함의 정도를 검사할 수 있는 효과적인 방법이었다. 또한 전기전도도 측정값은 결함의 양이 많아짐에 따라 감소하는 경향을 보였다. 비파괴검사와 파괴검사를 통해 얻은 가장 건전한 조건의 이음 효율은 91% 이었다. 따라서 비파괴검사는 마찰교반용접된 A2024-T4 합금을 검사하는데 있어서 효과적인 방법이라 사료된다.

• 중환자간호학회지
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• 제8권2호
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• pp.43-54
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• 2015

Purpose: This study aimed to identify the effects of education, using a relocation information guidebook, on the family caregivers of patients who were scheduled to be transferred from a neurosurgical intensive care unit to a general ward. Methods: They were divided into two groups: an experimental group (n = 21) and a control group (n = 20). A relocation information guidebook was created based on a literature review and an interview with five family caregivers about how to satisfy their needs. The collected data were analyzed with a ${\chi}^2$ test, Fisher's exact test, paired t-test, and t-test. Results: The effect of education, using the relocation information guidebook, on the family caregivers of patients who were relocated to a general ward from the neurosurgical intensive care unit was not significant for relocation stress (t = 0.94p, = .352) or anxiety (t = 1.25, p = .217), but was significant for education satisfaction (t = -2.50, p = .017). Conclusion: There were no differences in relocation stress and anxiety scores between the control and experimental groups. However, several methodological issues were highlighted that must be considered in future research, including the timing and measurement of transfer anxiety, and the intervention itself.

• 한국동물위생학회지
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• 제15권2호
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• pp.101-108
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• 1992

This study was carried out to investigate the effect of sulfamethazine and trimethoprim on TTC test in raw milk. Ten raw milks which does not contain any antibiotics were collected from milk farms and one hundred twenty raw milks which collected from three raw milk receiving stations and those milk samples were mixed up sulfamethazine and trimethoprim for TTC test. The results were as follows ; 1. Positive reactions of TTC test were shown above the concentration of 3, 000ppm for sulfamethazine and 10ppm for trimethoprim. 2. When the TTC test was conducted with trimethoprim and sulfamethazine mixture, a pair of the concentration of trimethoprim and sulfamethazine shown to positive reaction were 0.1-2, 000ppm, 0.5-1, 000ppm, 1.0-250ppm and 2.0-100ppm, respectively. 3. Of 120 raw milk samples tested, 16 samples(13%) were shown quasi-positive reaction when the trimethoprim at the concetration of 2ppm was added in the samples.

• 응용통계연구
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• 제32권3호
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• pp.331-348
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• 2019

전이성 종양의 성장패턴 차이와 변화율에 따른 종양 이질성(tumor heterogeneity)을 파악하는 것은 종양세포의 약물에 대한 민감성을 파악하고 적절한 치료법을 찾아내기 위해 중요하다. 일반적으로 N개의 표본의 집단이 구분된다면 t-test 혹은 ANOVA 분석을 통해 집단별 평균의 차이에 대한 검정이 가능하다. 그러나 본 논문에서 다루는 데이터와 같이 집단이 구분되지 않는 경우 이러한 방법들은 사용될 수 없다. 표본들 사이의 이질성을 검정하기 위한 통계적 방법들이 연구되어 왔다. 최소 조합 t-검정 방법은 그 중 하나이다. 본 논문에서는 상이한 비율로 데이터를 양분하는 조합도 고려하는 최대 조합 t-검정 방법을 제안한다. 한편, 표본의 이질성을 검정하는 것이 군집분석에서 최적의 군집의 개수가 2개 이상인지를 검정하는 것과 같음에 착안하여 새로운 방법을 제안한다. 최대 조합 t-검정과 gap통계량을 이용하면 이전에 제안된 방법보다 개선된 제1종의 오류를 범할 확률과 검정력을 갖는다는 것을 모의실험을 통해 확인하였고 실제 자료 분석을 통해 결과를 도출하였다.

• Journal of Genetic Medicine
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• 제12권2호
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• pp.96-99
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• 2015

Purpose: To evaluate the performance of the Momguard noninvasive prenatal test by tracing the 'screen positive' results based on preliminary samples from Korean cohorts. Materials and Methods: This preliminary study is based on data collected by the LabGenomics Clinical Laboratory (Seongnam, Korea) with informed consent. Only pregnant women who underwent both the Momguard test and karyotyping were included in this study. Momguard test results were compared with those of the karyotyping analysis. Results: Among the 38 cases with 'screen positive' results by Momguard, 30 cases also had karyotyping results available. In three trisomy (T) 18 and three T13 cases, the Momguard results were concordant with the karyotyping results. For the T21 cases, except for one case belonging to the mid-risk zone, Momguard results from 23 out of 24 cases matched the karyotyping results. Conclusion: Momguard is a highly reliable screening tool for detecting T13, T18, and T21 cases in independent Korean cohort samples.

• Applied Biological Chemistry
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• 제20권3호
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• pp.285-291
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• 1977

(가) 2개 이상(以上) t개의 시료(試料)를 3점기호척도시험법(點嗜好尺度試驗法)에 의해 실험한 결과를 통계처리(統計處理)하여 t개 시료 상호간(相互間)의 품질차(品質差)를 비교(比較)하는 해석법(解析法)에 대해서 검토(檢討) 하였다. (나) 그 결과 $Scheff{\acute{e}}'s$ method의 제1신법(第1新法)이 품질차(品質差)의 검출력(檢出力)에서나 얻어지는 정보량(情報量)에서 우수(優秀)함을 확인하고 t개의 시료에 대할 3점기호척도시험법(點嗜好尺度試驗法)의 해석방법(解析方法)으로써 실용성(實用性)이 있다는 결론을 얻었다. (다) 이때 correct oddity chosen에 대한 incorrec toddity chosen의 weight fraction은 chance probability에 의해 계산하여 1/2로 하였다.

• 대한예방한의학회지
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• 제18권2호
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• pp.69-80
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• 2014

Objective : The purpose of this study was to investigate the effects of Intensive management program of home visiting health service for community dwelling Clients with Arthralgia. Method : A nonequivalent control group pretest-posttest design was used for this study. Elderly people who agreed to participated in the study were assigned to an experimental group (n=30) or a control group (n=30). For an experimental group, The Intensive Management program was given as a home visiting health service once a week for 8 weeks. Study outcomes were measured by structured questionnaires from August, 2013 to october. For data analysis, Chi-square test, Fisher's exact probability test, independent t-test, and paired t-test were performed using SPSS version 17.0. Results : Changes in pain, fatigue, medical service utilization and self management compliance were significantly different between the two groups in pretest and posttest(t=-4.828, p < .001), (t=-4.944, p =.001), (t=2.176, p =.039), (t=3.141, p =.003). And there were significant difference between the two groups in left extension and flexion of knee(t=-2.241, p < .031), (t=2.166, p < .037). Conclusion : The intensive management program was effective on decreasing pain, fatigue, medical service utilization, and increasing flexibility of knee joint and self-management compliance of community dwelling clients with arthralgia.