• 한국치위생학회지
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• 제22권6호
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• pp.563-572
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• 2022

Objectives: The purpose of this study is to provide basic data for elucidating the clinical experiences of nursing assistants working at dental clinics and for establishing the bases necessary for building a safe working environment for the staff at dental clinics. Methods: From March 28 to August 20, 2022, the study conducted in-depth interviews with nursing assistants working with dental hygienists in dental clinics. The collected data were analyzed using the phenomenological method. Results: The study analyzed the meanings associated with the dental clinical assistance work experiences of nursing assistants in dental clinics. A total of 98 semantic words and 9 sub-categories were extracted, which were ultimately categorized into 4 central meanings: 'imperfect reality', 'work without boundaries', 'putting oneself in someone else's shoes', and 'symbiosis'. Conclusions: The nursing assistants were exposed to an environment where they needed to perform delegated treatment procedures even when they lacked dental work competency. They recognized their gaps in learning and the necessity for designated roles as clinical assistants. Thus, it is necessary to review the allocation and expansion of the work roles of dental practitioners based on the practical and rational realities in dental practice.

• 임상간호연구
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• 제16권2호
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• pp.17-31
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• 2010

Purpose: The purpose of this study was to identify the relationships between professionalism, job involvement, organizational commitment and turnover intention among clinical nurses. Methods: The data were collected using a questionnaire from 1,419 nurses who were working in 35 different general hospitals in Korea. For data analysis, descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and $Scheff{\grave{e}}$ test with SAS program were used. Results: The means of professionalism, job involvement, organizational commitment, turnover intention were 80.90 (min25~max125), 22.22 (min7~max35), 48.63 (min15~max75), and 11.47(min4~max20) respectively. There were statistically significant correlations between professionalism, job involvement, organizational commitment and turnover intention. Conclusion: It is necessary to develop a program for nurses to improve the levels of professionalism, job involvement, and organizational commitment, which would result in reducing turnover rates of clinical nurses.

• Journal of the Korean Data and Information Science Society
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• 제20권5호
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• pp.933-939
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• 2009

The bivariate data in clinical research fields often has two types of failure times, which are mark variable for the first failure time and the final failure time. This paper showed how to generate bootstrap data to get Bayesian estimation for the joint distribution of bivariate survival times. The observed data was generated by Frank's family and the fake date is simulated with the Gamma prior of survival time. The bootstrap data was obtained by combining the mimic data with the observed data and the simulated fake data from the observed data.

• Communications for Statistical Applications and Methods
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• 제5권2호
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• pp.459-475
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• 1998

In many clinical trials, we are interested in comparing the failure time distribution of different treatment groups. Because of ethical and economic reasons, clinical trials need to be monitored for early dramatic benefits or potential harmful effects. Prior knowledge, evolving knowledge, statistical considerations, medical judgment and ethical principles are all involved in the decision to terminate a trial early, and thus the monitoring is usually carried out by an independent scientific committee. This paper reviews the recently proposed group sequential testing procedures for clinical trials with survival data. Design considerations of such clinical trials are also discussed. This paper compares the characteristics of each of these methods and provides the biostatisticians with the guidelines for choosing the appropriate group sequential methods in a given situation.

• Journal of Korean Dental Science
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• 제8권1호
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• pp.16-27
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• 2015

Purpose: The purpose of this study was to evaluate the correlation between the clinical symptoms of temporomandibular disorder and findings in the magnetic resonance imaging (MRI). Materials and Methods: Clinical data and MRI images were collected from a total of 240 German patients. Clinical symptoms were briefed as joint clicking, crepitus and pain. MRI findings were further defined according to the condyle position, condyle degeneration, disc positon, disc degeneration and the presence of osteophyte/sclerosis/synovitis. Hypermobility was separately recorded. Correlation analysis between parameters was performed. Result: Joint clicking had a positive correlation with unilateral disc degeneration, osteophyte, sclerosis and synovitis. Crepitus had a significant correlation with bilateral osteophyte. Pain was not correlated with any MRI findings except hypermobility. Conclusion: Selective correlations between the MRI findings and clinical symptoms were elucidated. The results of this study imply that condyle-disc deformities could be advanced without pain, and that joint clicking and crepitus could be clinical symptoms of condyle-disc degeneration.

• Tuberculosis and Respiratory Diseases
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• 제75권2호
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• pp.47-51
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• 2013

Interstitial lung diseases are heterogeneous entities with diverse clinical presentations. Among them, idiopathic pulmonary fibrosis and connective tissue disease-associated interstitial lung disease are specific categories that pulmonologists are most likely to encounter in the clinical field. Despite the accumulated data from extensive clinical trial and observations, we continue to have many issues which need to be resolved in this field. In this update, we present the review of several articles regarding the clinical presentation, prognosis and treatment of patients with idiopathic pulmonary fibrosis or connective tissue disease-associated interstitial lung disease.

• 대한한방소아과학회지
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• 제30권4호
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• pp.111-122
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• 2016

Objective The purpose of this study is to investigate recent clinical studies on the effect of herbal medicine in flat warts in China, and to seek better methods to treat and study for flat warts in Korea. Methods The clinical studies from the CAJ (China Academic Journal) of CNKI (China National Knowledge Infrastructure) by key words '扁平疣' in recent 5 years (From January 2011 to December 2015) were searched. Results 16 articles were selected from 122 clinical studies, and analyzed. The most commonly used herbs were Isatidis Radix (板藍根), Equiseti Hiemalis Herba (木賊), Cyperi Rhizoma (香附子), Carthami Flos (紅花), Glycyrrhizae Radix (甘草) etc., and the articles all showed effectiveness over the control group. Conclusion Based on analyzing the studies, herbal medicine has shown effective in flat wart. This study may be useful not only as clinical data, but also to determine better treatment going forward.

• Nuclear Medicine and Molecular Imaging
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• 제42권sup1호
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• pp.166-171
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• 2008

PET of the cerebral metabolic rate of glucose is increasingly used to support the clinical diagnosis in the examination of patients with suspected major neurodegenerative disorders, such as Alzheimer's disease. $^{18}F-FDG$ PET has been reported to have high diagnostic performance, especially, very high sensitivity in the diagnosis and clinical assessment of therapeutic efficacy. According to clinical research data hitherto, $^{18}F-FDG$ PET is expected to be an effective diagnostic tool in early and differential diagnosis of Alzheimer's disease. Since 2004, Medicare covers $^{18}F-FDG$ PET scans for the differential diagnosis of fronto-temporal dementia (FTD) and Alzheimer's disease (AD) under specific requirements; or, its use in a CMS approved practical clinical trial focused on the utility of $^{18}F-FDG$ PET in the diagnosis or treatment of dementing neurodegenerative diseases.

• 한국치위생학회지
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• 제14권2호
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• pp.205-211
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• 2014

Objectives : The purpose of the study is to investigate the relationship between humor and empowerment in clinical dental hygienist. Methods : Subjects were 374 clinical dental hygienist in Jeollabuk-do from April 20 to June 4, 2013. Data were analyzed using the statistical package SPSS WIN 12.0 for frequency, mean and standard deviation analysis, one-way ANOVA and linear regression. Results : The mean score or the clinical dental hygienist of humor was 2.55 out of 4 each of the sub-dimensions including emotional expressiveness, message sensitivity and preference of humor. Empowerment was 3.50 out of 5 and each of the sub-dimensions including meaning, competence, self-determination and impact. There was a significantly positive correlation between the sense of humor and the empowerment. Conclusions : It is necessary to develop the empowerment combined with humor sense in the curricula of dental hygiene education and leadership management in the clinical dental hygienist.

• Imaging Science in Dentistry
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• 제35권2호
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• pp.69-75
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• 2005

Purpose : To determine the clinical correlation of magnetic resonance imaging (MRI) findings of temporomandibular joint internal derangements. Materials and Methods : The MR images of 150 TMJs in 75 patients were analyzed. The clinical symptoms were pain in the preauricular area and masticatory muscles and TMJ sounds. Results : There was a statistically significant relationship between the MRI diagnoses of different types of disc displacements and clinical findings of pain, clicking, and crepitus. The risk of TMJ pain was increased when the disc displacement without reduction occurred at the same time in combination with the osteoarthrosis and effusion. Conclusion : Regardless of the results, the data indicate that each of these MR imaging variables may not be regarded as the unique and dominant factor in defining TMJ pain occurrence.