• Title/Summary/Keyword: T-test analysis

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Experimental Study on Anti-body effects of Anti-BV on the Bee Venom Herbal Acupuncture (Anti-BV의 봉약침 항체 효능에 관한 실험적 연구)

  • Kwon, Ki-Rok;Lee, Kwang-Ho;Park, Won-Pil
    • Journal of Pharmacopuncture
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    • v.8 no.1
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    • pp.21-30
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    • 2005
  • Objectives : To observe physiological anti-body effects of anti-BV, acute toxic response, measurement of $LD_{50}$, and the effects of anti-body were evaluated. Methods : $LD_{50}$ of Anti-Bee Venom were measured, and to analyze acute toxic responses, weight, and the anti-body effects various concentrations of Anti-BV were diluted and the survival rate was measured. Cell blood count (CBC), liver, spleen, and kidney pathologies were observed from the histological aspects. Results : Experiment was conducted to observe Anti-BV as the anti-body to the bee venom and the following results were obtained : 1.anti-BV was injected intraperitoneally and no toxic responses were witnessed. All of the experiment subjects stayed alive during the experiment, making $LD_{50}$ analysis impossible. 2.Anti-BV was injected intraperitoneally in mice and no significant weight changes were measured between the control group and the experiment groups. 3. Measuring the concentration dependent survival rate, the highest survival rate was at the concentration of $1.25{\times}10^2mg/kg$(1/2.000) for Anti-BV. 4. No particular results were shown in the CBC test. 5. Observation of changes in the organ tissues, Anti-BV was found to suppress blood stasis in the liver and inhibit necrosis of the cells. Conclusion : Above results suggest that Anti-BV doesn't cause any toxic responses in the body and works as an anti-body to the bee venom. Further studies must be followed to secure the findings.

Trends of Tongue Features in Functional Dyspepsia Patients (기능성 소화불량 환자에서 설 지표의 경향성 파악)

  • Kim, Jihye;Ko, Seok-jae;Park, Jae-woo;Kim, Keun Ho
    • The Journal of Internal Korean Medicine
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    • v.39 no.4
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    • pp.637-644
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    • 2018
  • Objectives: In this study, the tongue features of patients with functional dyspepsia (FD) were compared with those of healthy controls. Methods: This prospective, case-control study was conducted on patients with FD and controls recruited at a single center. After screening, the subjects were allocated to the patient or control groups (patients=42, controls=40). Tongue images were acquired using a computerized tongue image acquisition system (CTIS). An independent t-test was conducted to compare the measurements from patients and controls. Binary logistic regression was performed to determine significant differences between the two groups after adjusting for age and sex. Results: The CIE $a^*$ color value in the tongue coating area was significantly lower in the patients with FD than in the controls (p=0.001). The tongue coating ratios were also significantly higher in the FD group than in the control group (p=0.003). We found that the CIE $a^*$ color value in the tongue coating area and the tongue coating ratios were significant predictive factors in both groups, based on binary regression analysis (p=0.016, 0.044, respectively). Conclusions: This study found that FD was significantly associated with CIE $a^*$ color value in the tongue coating area and tongue coating ratios. We suggest that these factors could be used as objective indicators of FD.

Factors associated with performance of infection control among some physical therapists

  • Seol, Yoon-Yee;Han, Mi Ah;Park, Jong;Ryu, So Yeon
    • The Journal of Korean Physical Therapy
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    • v.28 no.2
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    • pp.155-163
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    • 2016
  • Purpose: Infection management is important for physical therapists in order to protect patients and themselves since they often provide patient care and have physical contact with patients. This study examined the performance of infection control and associated factors among physical therapists. Methods: The study subjects were 174 physical therapists working in the G metropolitan city. The performance of infection control according to general characteristics, job-related characteristics, and infection-related characteristics were compared using t-test and ANOVA. Associations between awareness and performance of infection control were tested by correlation. Finally, multiple linear regression analyses were performed to examine the factors associated with performance of infection control. Results: Overall performance scores for personal and therapy room were $87.47{\pm}11.70$ and $70.08{\pm}13.68$, respectively. Both personal and therapy room infection control were lower for the degree of performance than the degree of awareness. In multiple linear regression analysis, the degree of performance at a personal level was related to current smoking status, type of charge therapy, supply of protection equipment, and awareness of personal infection control. The degree of performance of therapy room was related to injury experience in the workplace, supply of protection equipment, and awareness of therapy room infection control. Conclusion: Performance of therapy room infection control was lower than that of personal infection control. The performance was associated with the supply of protection equipment and awareness. Therefore, the degree of performance for infection control will be increased with proper supply of protection equipment in the hospital and increase the degree of awareness with adequate prevention education.

Age Effects on Center of Mass during Obstacle Crossing (장애물 보행 시 노화에 따른 신체질량중심의 변화)

  • Son, Nam-Kuk;Kim, Hyeong-Dong
    • Journal of the Korean Society of Physical Medicine
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    • v.9 no.1
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    • pp.93-99
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    • 2014
  • PURPOSE: The purpose of this study was to compare three dimensional displacement and peak velocity of the center of mass (COM) during obstacle crossing in young and older adults. METHODS: 10 young adults (6 males/4 females, $24.6{\pm}1.9$ years, age range: 22.0-26.9) and 10 older adults (1 male/9 females, $76.9{\pm}5.1$ years, age range: 65.2-81.2) participated in the study. Both groups crossed an obstacle, which is 10% of leg length, and COM was measured using motion analysis system. Independent t-test was used to find significant differences between two groups. RESULTS: The older adults showed significantly greater and faster COM displacement and peak velocity in mediolateral (M-L) direction as compared with young adults (p<.01 and p<.001 respectively). However, the young adults showed significantly greater and faster COM displacement and peak velocity in anteroposterior (A-P) direction as compared with older adults (p<.05 and p<.001 respectively). Furthermore, the young adults showed faster peak velocity of COM in vertical direction as compared with older adults (p<.001). However, no significant difference was found in the COM displacement in vertical direction between two groups. CONCLUSION: Greater and faster COM displacement and peak velocity in M-L direction in older adults were due to compensatory adjustment for appropriate contact on base of support of swing limb. Thus, the motion of the COM in M-L direction may be a crucial factor to identify risk of falls in older adults.

Relationship between Gender Roles and Job Satisfaction among Neurological Physical Therapists

  • Park, Ji-Whan;Han, Seul-Ki;Lee, Dae-Hee
    • Journal of the Korean Society of Physical Medicine
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    • v.11 no.3
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    • pp.81-88
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    • 2016
  • PURPOSE: This study was aimed at investigating the types of gender roles and the relationship between gender roles and job satisfaction among neurological physical therapists. METHODS: The study subjects were 169 (male 74, female 95) neurological physical therapists working at general hospitals or rehabilitation centers in the Daejeon Metropolitan City area, South Korea. To identify job satisfaction scores, the subjects completed a questionnaire, and a vernier caliper was used by a trained examiner to measure the lengths of the subjects' index and ring fingers (i.e., digitus secundus manus and digitus annularis, respectively) to examine gender roles. The index to ring finger length ratio (i.e., 2D:4D ratio) was calculated using a personal computer. An independent t-test was performed to compare the finger length ratio and job satisfaction of male group with that of the female group and a correlation analysis was performed to examine job satisfaction by gender roles. RESULTS: Finger length ratio is lower in males than in females. However, there was no significant difference statistically (p>.05). Regarding job satisfaction by gender, males were more satisfied with their jobs than females (p<.05). However, there were no significant correlations between job satisfaction and gender roles (p>.05). CONCLUSION: It cannot be concluded that bias against gender roles is a contributing factor for neurological physical therapists being satisfied with their job, and thus bias against gender roles among neurological physical therapists should be removed.

Effects of a School - Based Oral Health Care Program on the Prevalence of Dental Caries in Primary School Children (학교구강보건사업이 초등학교 아동들의 유치 및 영구치 우식실태에 미치는 영향)

  • Choi, Soon-Lye;Ryu, Young-Ah;Cho, Min-Jeong;Song, Keun-Bae
    • Journal of the Korean Society of School Health
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    • v.17 no.2
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    • pp.11-22
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    • 2004
  • Purpose: The aim of this study was to evaluate the effects of oral health care programs in 3 school-based oral health care center among primary schoolchildren. Methods: School-based oral health care programs included fluoride mouth rinsing, pit and fissure sealing for permanent premolars and molars, fluoride gel application and chewing of xylitol candy. All of the programs were carried out by one dental hygienist among 'D' primary schoolchildren in Daegu city under the supervision of a dentist. Baseline dental examinations were completed and preventive care was implemented for 544 children during one year. All of the children visited a school-based oral health care center every three months for a regular check-up. The final oral examination was conducted from March 15 to April 1, 2004. The data analysis data was made on the basis of SAS 8.01. Mean differences between 2003 and 2004 data were compared by paired t-test. Corresponding p-values were considered significant at values less than 0.05. Results: The DMF rate and DFT index were reduced to 8.0% and 8.4% during one year respectively, but there were no statistically significant differences. The DMF rate was significantly reduced (16.3%) after a one year program of school-based oral health care practice. The DMFT(Decay Missing Filling Tooth) index was also reduced compared to 2003 throughout the entire grade. Conclusion: School-based oral health care programs can reduce the prevalence of dental caries prevalence among schoolchildren during one year. This program also improved the oral health capacity of schoolchildren. It is recommend that the school-based oral health care program should be extended to every primary school in Korea.

Factors related to Health Promoting Behavior in Late School-age Children (학령기 후기 아동의 건강증진행위 관련요인)

  • Kim, Hyeon-Seop;Kim, Young-Im
    • Journal of the Korean Society of School Health
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    • v.23 no.1
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    • pp.1-10
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    • 2010
  • Purpose: The purpose of this study was to investigate factors influencing health promoting behavior of the late school age children and to analyze the difference of health promoting behavior according to personal factors of children. Methods: The subjects consisted of 169 school-aged children in the 6th grade in Gyeonggi-do. Data were collected from Dec. 1 to Dec. 10, 2008. The data were analyzed by using frequency, percentage, mean, standard deviation, t-test, ANOVA, Pearson's correlation coefficients and Stepwise multiple regression with the SPSS/WIN 12.0 program. Results: 1) Health promoting behavior was proved to be relatively high. The average item score for the health promoting behavior was $3.85{\pm}.41$. The highest degree of health promoting behavior was stress management (4.13). whereas the one with the lowest degree was exercise (3.40). 2) In the relationship between personal factors and health promoting behavior, there were statistically significant differences in gender, perceived health status, family mood, father's drinking habits, school performance, school satisfaction. 3) Health promoting behavior was showed significant positive correlations with perceived self-efficacy (r=.55), social support (r=.65), prior related behaviors (r=.44), perceived benefits of action (r=.42), and significant negative correlations with perceived barriers of action (r=-.37). 4) Stepwise multiple regression analysis was revealed that the most powerful predictor of health promoting behavior was social support ($\beta$=0.36) Conclusion: The combination of social support, perceived self-efficacy, perceived benefits of action, gender, and family mood accounted for 57.8% of the variance in the health promoting behavior of the late school age children.

Effects of Appearance Stress and Appearance Management Behavior on Job-seeking Stress among Male University Students (남자대학생의 외모 스트레스와 외모관리행동이 취업 스트레스에 미치는 영향)

  • Kang, Hyun-Ju;Choe, Hye Jeong;Kim, Joo Hyun;Chae, Young Ran;Kang, So Yean;Lee, Sun Hee;Kim, Won Hee
    • Journal of the Korean Society of School Health
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    • v.31 no.2
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    • pp.108-116
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    • 2018
  • Purpose: The purpose of this study was to investigate the effects of appearance stress and appearance management behavior on job-seeking stress among male university students. Methods: The participants of this cross-sectional and descriptive study were 158 male students attending a university in K Province who completed a self-report structured questionnaire. The survey period was from September 19th to November 9th, 2017. Data were analyzed using descriptive statistics, independent t-test, one-way ANOVA, correlation and multiple linear regression analyses with the SPSS statistics 23 program. Results: Job-seeking stress showed significant differences according to BMI (F=2.55, p=.042) and pocket money (F=3.08, p=.049). The results of the regression analysis showed that grade (${\beta}=8.93$, p=.008), pocket money (${\beta}=-5.11$, p=.029), appearance stress (${\beta}=.52$, p<.001), and appearance management behavior (${\beta}=.25$, p=.001) were significant factors affecting jog search stress. Conclusion: The findings of this study suggest that variables such as grade, pocket money, appearance stress, and appearance management behavior significantly explain job-seeking stress among male students in college. Therefore, it is necessary to develop a program to reduce job-seeking stress for senior male students who are preparing for employment before graduation. In addition, when organizing a program to reduce job-seeking for male university students, it is necessary to help them have a more positive evaluation of their appearance and pursue proper appearance management behaviors.

The Effect of Fibrin Glue as a Prevention Against Spontaneous Pneumothorax (Fibrin Glue가 자연기흉의 재발에 미치는 영향)

  • 이석열
    • Journal of Chest Surgery
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    • v.24 no.6
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    • pp.570-578
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    • 1991
  • The spontaneous pneumothorax is the sudden collapse of the lung usually by air leakage from the ruptured sub-pleural bleb and has high recurrence rate. For prevention against recurrence, many drugs such as tetracycline, talcum powder, quinacrine, etc. have been used but the effects are not satisfactory. We reduced the recurrence rate successfully by the fibrin glue instillation through the chest tube. From the January 1989 to September 1990, we have managed 65 patients of spontaneous pneumothorax with closed thoracostomy and fibrin glue[fibrinogen 1gm/50ml with approtinin 3, 000kIU /ml, thrombin 5, 000IU /ml in 3% each 10ml] instillation through the chest tube. And we compared the results with those of 106 patients of spontaneous pneumothorax who were managed only by the closed thoracostomy from January 1985 to December 1988. Only the patients who visited our hospital with recurrence were considered as the recurred cases but the others were considered as not recurred. And the removal of chest tubes usually done 3 days after cessation of air leakage or 2 days after fibrin glue instillation Statistical analysis was done by X2-test. The results were as followings: 1. The recurrence rate of fibrin glue instillation group was lower than that of non-instillation group[1st attack: 15.1% versus 27.6% p<0, 05, the 2nd attack: 33.3% versus 73.7% p<0.01, the total 18.5% versus 35.8% p<0.01]. 2. The mean duration of chest tube drainage in the fibrin glue instillation group was shorter than non-instillation group[4.24$\pm$1.36 days versus 4.48$\pm$1.73 days p<0.05]. 3. The mean duration of hospitalization was shorter in the instillation group [8.12$\pm$3.5 days versus 10.8$\pm$3.8 days p<0.05] The complications were transient mild fever, chest pain, pleural effusion in 46 cases of 65 patients, but those didn`t make any problem. We concluded that the fibrin glue is effective in the reduction of recurrence rate, obliteration of air leakage and duration of hospitalization.

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Development of a Pattern and Visual Image for a One-Piece Dress using a 3D Virtual Clothing System (3D 가상 착의 시스템을 활용한 원피스 드레스의 원형 개발 및 시각적 이미지 연구)

  • Uh, Mi-Kyung
    • The Research Journal of the Costume Culture
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    • v.19 no.3
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    • pp.597-611
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    • 2011
  • The purpose of this study is to propose a design method for one-piece dress patterns with high body fitness through an appearance evaluation of one-piece dress patterns with the application of the 3D Virtual Clothing System known as i-designer. Measures consisted of an optical illusion effect in visual imagery and mutual influence according to a change in the length and princess line, in a silhouette of a one-piece dress. The data was assessed by a t-test and a multi-way ANOVA and factor analysis using SPSS 17.0. The results were as follows; The design of the study pattern was done by modifying the ease of the bust circumference, ease of the abdominal circumference, ease of the hip circumference, the position of the side seam line, and the appearance of horizontality in the hem line, which received a low evaluation in appearance evaluations of a one-piece dress pattern. As a result of analyzing the visual image according to a change in the length and princess line, in the form of a silhouette of a one-piece dress, four factors were selected; the whole-body optical illusion factor, the upper-body optical illusion factor, the bust optical illusion factor, and the lower-body optical illusion factor. As a result of analyzing the effect of the interaction in the visual image according to the design variables, the influence of the main effect was found to be great in each factor. In the upper-body optical illusion factor, a significant difference was not noted in the two-way interaction between the length and the princess line. However, the influence on three-way interaction among the length, princess line, and silhouette was significant.