• Title/Summary/Keyword: T-test analysis

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An Electrophysiologic Study on the Median Motor Nerve and Ulnar Motor Nerve (정중운동신경과 척골운동신경의 전기생리학적 연구)

  • Kim, Jong-Soon;Lee, Hyun-Ok;Ahn, So-Youn;Koo, Bong-Oh;Nam, Kun-Woo;Kim, Young-Jick;Kim, Ho-Bong;Ryu, Jae-Kwan;Ryu, Jae-Moon
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.11 no.2
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    • pp.62-70
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    • 2005
  • The determination of peripheral nerve conduction velocity is an important part to electrodiagnosis. Its value as neurophysiologic investigative procedure has been known for many years but normal value of median and ulnar motor nerve was poorly reported in Korea. To evaluate of median and ulnar motor nerve terminal latency, amplitude of CMAP(compound muscle action potential), conduction velocity and F-wave latency for obtain clinically useful reference value. 71 normal volunteers(age, 19-65 years; 142 hands) examined who has no history of peripheral neuropathy, diabetic mellitus, chronic renal failure, endocrine disorders, anti-cancer medicine, anti-tubercle medicine, alcoholism, trauma, radiculopathy. Nicolet Viking II was use for detected terminal latency, amplitude of CMAP, conduction velocity and F-wave latency of median and ulnar motor nerve. Data analysis was performed using SPSS. Descriptive analysis was used for obtain mean and standard deviation, independent t-test was used to compare between Rt and Lt side also compare between different in genders. The results are summarized as follows: 1. Median motor nerve terminal latency was right 3.00ms, left 2.99ms and there was no significantly differences between right and left side and genders. 2. Median motor nerve amplitude of CMAP was right 17.26mV, left 1750mV and there was no significantly differences between right and left side and genders. 3. Median motor nerve conduction velocity was right 57.89m/sec, left 58.03m/sec and there was no significantly differences between right and left side and genders. 4. Median motor nerve F-wave latency was right 25.74ms, left 25.59ms and there was significantly differences between genders. 5. Ulnar motor nerve terminal latency was right 2.38ms, left 2.45ms and there was significantly differences between right and left side. 6. Ulnar motor nerve amplitude of CMAP was right 15.99mV, left 16.02mV and there was no significantly differences between right and left side and genders. 7. Ulnar motor nerve conduction velocity was right 60.35m/sec, left 59.73m/sec and there was no significantly differences between right and left side and genders. 8. Ulnar motor nerve F-wave latency was right 25.53ms, left 25.57ms and there was significantly differences between genders.

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An Electrophysiologic Study on the Ulnar Digital Nerves (척골 지단 신경의 전기생리학적 연구)

  • Kim, Jong-Soon;Lee, Hyun-Ok;Ahn, So-Youn;Koo, Bong-Oh;Nam, Kun-Woo;Kim, Ho-Bong;Ryu, Jae-Kwan;Ryu, Jae-Moon
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.11 no.2
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    • pp.13-18
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    • 2005
  • The ulnar nerve extends down the arm, across the elbow, and into the hand. It provides sensation to the little and ring fingers and activates many of the small muscles in the hand. The determination of peripheral nerve conduction velocity is an important part of ulnar nerve evaluation. The electrodiagnostic value as neurophysiologic investigative procedure has been known for many years but normal value of digital nerve was not reported in Korea. The purpose of this investigation was to measure the digital nerve conduction velocity of ulnar nerve for obtain clinically useful reference value and compare difference in each fingers and then compare with the other countries. 71 normal Korean volunteers (age, 19-65 years; 142 hands) examined who has no history of peripheral neuropathy, diabetic mellitus, chronic renal failure, endocrine disorders, anti-cancer medicine, anti-tubercle medicine, alcoholism, trauma, radiculopathy. Nicolet Viking II (EMG machine) was use for detected conduction velocity and amplitude of digital nerves in ulnar nerve. Data analysis was performed using SPSS. Descriptive analysis was used for obtain mean and standard deviation and independent t-test was used to compare with ring and little finger. Conduction velocity of the right ring finger was 57.44m/sec and little finger was 55.32msec. The left ring finger was 55.55msec and little finger was 54.11msec. Amplitude of the right ring finger was $30.28{\mu}V$ and little finger was $48.36{\mu}V$. The left ring finger was $30.67{\mu}V$ and little finger was $52.76{\mu}V$. There were significantly difference between ring and little in amplitude (p<.05) but there were no statistically difference between conduction velocity of ring and little finger (p>.05). The amplitude of little finger are greater than ring finger. The present results revealed that electodiagnosis can easily perform in little finger for digital nerve of ulnar nerve study.

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The Effect of Internal Marketing on Customer Orientation of Dental Hygienists (내부마케팅이 치과위생사의 고객지향성에 미치는 영향)

  • Lee, Byung-Ho;Kim, Jung-Sool
    • Journal of dental hygiene science
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    • v.16 no.1
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    • pp.37-44
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    • 2016
  • The purpose of this study was to reveal association between internal marketing and customer orientation. Internal marketing was composed of empowerment, educational training, reward system, internal communication and management support. We thought these factors affect to the consumer orientation. For this study, 191 dental hygienists in Busan, Ulsan and Kyungnam are participated in this study. The data were analyzed with descriptive statistics, t-test, ANOVA, pearson's correlation coefficients, and stepwise multiple regression analysis with SPSS 18.0 program. In conclusion, we obtained the next results. First, the mean of internal marketing behavior was 3.22 out of 5. In terms of sub-domain, educational training (3.88) is the highest, followed by empowerment (3.35), internal communication (3.10), management support (3.05) and reward system (2.79). Second, the internal marketing factors of internal communication, reward system orientation, management support, empowerment, and educational training had positive correlations with customer orientation (r=0.189~0.381). Third, the influencing factor in customer orientation were educational training (${\beta}=0.277$) and empowerment (${\beta}=0.276$), adjusted $R^2=0.202$. As dental patients' desire to medical service quality becomes diversified, the analysis result is considered to help the future dental service management.

The Effect of Conscious Sedation on Pain and Anxiety of Implant Surgery (임플란트 수술 시 의식하진정법이 환자의 통증과 불안에 미치는 영향)

  • Kim, Hye-Young;Lee, Su-Young;Cho, Young-Sik
    • Journal of dental hygiene science
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    • v.14 no.3
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    • pp.411-416
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    • 2014
  • The purpose of this study was to examine the effects of conscious sedation on pain and anxiety of patients in implant surgery. A total of 95 patients who underwent implant surgery were included in the study. In this study, the patient's anxiety and pain to evaluate the pre-operative Visual Analogue Scale (VAS), during-operative Pain Question (PQ), post-operative (Short-form McGill Pain Questionnaire [SF-MPQ], VAS) was used for tools such as questionnaires. The data were analyzed using the chi-squire, independent-samples t-test, multiple linear regression analysis. As a result, the pain reduction was significantly different between the sedative dental treatment and non-sedative dental treatment (p<0.05). The finding of the study multiple linear regression analysis showed that operation time, implant surgery experience, gender, age, operation form and Pain Catastrophizing Scale (PCS) with factors that affect the pain and anxiety (p<0.05). According to the results of the study, considered to be necessary to develop intervention strategies effective using the PCS when managing pain and anxiety of behavior management of this implant patient. Thus, it is advised to provide necessary practical guidelines and dental utilization behaviors on patients with conscious sedation.

Factors That Affect the Level of Emotional Labor in Dental Hygienists (치과위생사의 감정노동 영향요인 연구)

  • Choi, Hye-Jeong;Bang, Hyo-Jung;Chung, Eun-Young;Seo, Young-Jun
    • Journal of dental hygiene science
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    • v.14 no.3
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    • pp.295-301
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    • 2014
  • This research purports to find out the factors that affect the level of emotional labor in dental hygienists. Data were collected from 204 dental hygienists working at 5 university hospitals and 55 dental clinics through self-administered questionnaire, and analyzed by statistical analysis using t-test, ANOVA, and regression analysis. The main findings of the study are as follows: First, the higher the educational level of dental hygienists, and the bigger the size of dental institutions they work, the higher the level of emotional labor of dental hygienists. Second, patient and environmental factors were found to have significant effects on the level of emotional labor. The above results imply that managers should try to make the workplace better environment which can secure appropriate workload and rewards, and support for work related education programs etc. It is also needed to educate the patients in order to prevent unnecessary conflicts between the patients and dental hygienists.

Validity of the Teacher's Scales for Gifted Preschool Children (교사용 유아 영재성 평가척도 개발 및 타당화 연구)

  • Lee, Chae-Ho;Choe, In-Soo
    • Journal of Gifted/Talented Education
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    • v.22 no.2
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    • pp.483-497
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    • 2012
  • The purpose of this study was to examine the validity of the Teacher's Scale for Gifted Preschool Children(TSGPC). Participation of this study were 357 preschool children and their parents and teachers from Seoul, Ulsan, Daegy, Gwangiu & Daejeon. Data were analyzed by exploratory factor analysis, Pearson's r, t-test and Cronbach's ${\alpha}$. Results are as follows. (1) exploratory factor analysis of TSGPC revealed that a 5-factor solution (academic ability, creativity, task commitment, artistic talent, and leadership) was the best fit. (2) Correlations between TSGPC and parental rating scale for young children's giftedness were significant. (3) Scores of TSGPC between gifted children and general children were significantly different (4) Cronbach's ${\alpha}$ ranged from .82 and .91 for subscale of TSGPC and .93 for the total scale. These results show that the Teacher's Scale for Gifted Preschool Children is quite reliable and valid measure.

The Relationship Between Friendship Level by Hierarchy and Occupation and Job Satisfaction, Organizational Commitment and Job Stress (수직적 계층 및 직종별 프렌드십 수준과 직무만족, 조직몰입, 직무스트레스의 관계)

  • Oh, Su-Jin;Kim, Young-Hoon;Kim, Han-Sung;Choi, Young-Jin
    • Korea Journal of Hospital Management
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    • v.19 no.1
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    • pp.1-20
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    • 2014
  • In this study, we investigated the relationship between friendship level within a hospital organization and job satisfaction, organizational commitment and job stress. Focusing on the hierarchy and occupation of a hospital, different from previous introductory studies. As a study tool, structured questionnaire were devised and used. The subjects were nurses, administrators and medical technicians who worked at 17 tertiary hospitals in Seoul and Kyongin area. To analyze the data, we conducted frequency analysis, t-test, one-way ANOVA, two-way ANOVA and multiple regression analysis.The main results of our study can be summarized as followings:Firstly, seen from the viewpoint of social demographic characteristics, on the whole friendship level with fellows is the highest, and then that with subordinates and that with bosses the lowest. Secondly, the friendship level with bosses, subordinates and fellows had a significant relationship with job satisfaction, organizational commitment and job stress, though there were some differences among them. In case of junior managers, the friendship level with fellows had a significant relationship with job satisfaction and organizational commitment; in case of middle managers, the friendship level with fellows had significant relationship with job satisfaction. We found that the friendship level with the bosses had a deeper relationship with job satisfaction, organizational commitment and job stress as we went down the hierarchy. Thirdly, analyzing the differences between occupation, administrators and medical technicians had relatively higher significant relationship with the friendship level with bosses than nurses in job satisfaction, organizational commitment and job stress. High friendship level with the bosses influenced job satisfaction significantly for the nurse; yet, in case of administrators and medical technicians, the friendship level with bosses influenced all of job satisfaction, organizational commitment and job stress. Based on our study, we recommend facilitating friendly relationship between the bosses and the subordinates in order to enhance job satisfaction, organizational commitment and job related stress reduction.

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A Study of the Perception of Sexual Role and Sexual Harassment in Workplace (직장내 성희롱 인식에 관한 연구)

  • Kim, Young-Im;Kim, Moung-Soon;Choi, Sook-Ja;Bai, Jong-Ae
    • Research in Community and Public Health Nursing
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    • v.12 no.1
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    • pp.247-260
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    • 2001
  • The objectives of this study are first, to investigate the significant differences in the perception and attitude for sexual role of workers, second, to identify the degree of the perception of women manpower in workplace, third, to identify the perception for sexual harassment in workplace and fourth to analyze the relative important factors that effect on conception for sexual harassment. The survey data were collected by questionnaires on May 2000, and the number of subjects was 300 workers. The SAS-PC program was used for the statistical analysis such as t-test, ANOVA and regression analysis. Major results were follow as: 1. The performance rates of health education for sexual harassment was 66%, and 58.9% of the lecturer of sexual harassment education was occupational health nurse. The 45.2% of workers acquired the information for sexual harassment through massive education in workplace. 2. The perception and attitude of sexual role was relatively positive as 2.3(SD=0.69) of mean values. and the difference by sex, age, marital status. and working period was significant. 3. The perception of the women manpower in workplace was generally positive as 7.9(SD= 3.25) of mean values, and the working experience group of less 10 years and more 10 years old age group showed the significant difference in comparative to other group. 4. The perception of sexual harassment of workplace composed of legal basis, range of victim, place of sexual harassment, type of sexual harassment. misconception of sexual harassment, and coping methods of sexual harassment. Among of these perception. type and coping methods of sexual harassment were shown high perception level. The difference by sex between group for perception of sexual harassment was highly significant. 5. Factors that effect on the perception of sexual harassment was not high for the explanation power of regression, but the age, the type of task, the. perception for women manpower were important variables. Based on this results of study, we recommend that the education of sexual harassment in workplace should be strengthened and specified according to age, working period, type of working task. It also should provide various education and information to workplace. Finally and there should be continuous education opportunity systematically to occupational health nurses who are major lecturers for sexual harassment, therefore they can educate workers more effectively.

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The Relationship of Job Satisfaction and Quality of Life on the Dental Technicians (치과기공사의 직무만족도와 삶의 질의 관련성)

  • Kwon, Eun-Ja;Han, Min-Soo
    • Journal of Technologic Dentistry
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    • v.34 no.3
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    • pp.249-261
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    • 2012
  • Purpose: This study was carried out in order to examine the relationship of job satisfaction and quality of life on the dental technicians and to analyze its influence. Methods: A self-reported questionnaire survey was carried out by having convenience sampling as 220 dental technicians who work in Seoul Metropolis, Gyeonggi-do Province, Daejeon and Chungnam Province from March 12, 2012 to April 13. A research tool was used questionnaire that was proved reliability and validity. It was prepared with totally 50 questions such as 12 items for subjects' general characteristics, 18 items for job satisfaction measurement, and 20 items for life quality measurement. An analysis of the collected data was computationally processed by using SPSS Win 17.0 program. An analytical technique was made by using statistical techniques such as frequency & percentage, T-test or One-way ANOVA analysis. The following are the analytical results of the collected materials. Results: As a result of analyzing research subjects' job satisfaction level, there was significant difference(P<0.05) in items of religion, hobby life, working environment, and rest time out of daily work. The whole mean in job satisfaction was indicated to be relatively high with 3.13. However, job satisfaction with social recognition, salary, and safety was indicated lowly. As a result of analyzing research subjects' life quality level, there was significant difference(P<0.05) in items of religion, hobby life, working environment, and rest time out of daily work. The whole mean in quality of life was indicated to be relatively high with 3.10. However, the satisfaction was indicated lowly in the whole life quality and the life environment sphere. As a result of analyzing correlation between job satisfaction and life quality, all variables were indicated to be positive correlation in high significance level, thereby having been indicated that the higher job satisfaction leads to the higher life quality. Conclusion: As a result of research, the dental technicians' job satisfaction was indicated to have high correlation with quality of life. An effort is judged to be necessary for establishing fair compensation system, improving welfare policy and enhancing social recognition and position in order to promote dental technicians' quality of life.

Data mining Algorithms for the Development of Sasang Type Diagnosis (사상체질 진단검사를 위한 데이터마이닝 알고리즘 연구)

  • Hong, Jin-Woo;Kim, Young-In;Park, So-Jung;Kim, Byoung-Chul;Eom, Il-Kyu;Hwang, Min-Woo;Shin, Sang-Woo;Kim, Byung-Joo;Kwon, Young-Kyu;Chae, Han
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.6
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    • pp.1234-1240
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    • 2009
  • This study was to compare the effectiveness and validity of various data-mining algorithm for Sasang type diagnostic test. We compared the sensitivity and specificity index of nine attribute selection and eleven class classification algorithms with 31 data-set characterizing Sasang typology and 10-fold validation methods installed in Waikato Environment Knowledge Analysis (WEKA). The highest classification validity score can be acquired as follows; 69.9 as Percentage Correctly Predicted index with Naive Bayes Classifier, 80 as sensitivity index with LWL/Tae-Eum type, 93.5 as specificity index with Naive Bayes Classifier/So-Eum type. The classification algorithm with highest PCP index of 69.62 after attribute selection was Naive Bayes Classifier. In this study we can find that the best-fit algorithm for traditional medicine is case sensitive and that characteristics of clinical circumstances, and data-mining algorithms and study purpose should be considered to get the highest validity even with the well defined data sets. It is also confirmed that we can't find one-fits-all algorithm and there should be many studies with trials and errors. This study will serve as a pivotal foundation for the development of medical instruments for Pattern Identification and Sasang type diagnosis on the basis of traditional Korean Medicine.