• Journal of Preventive Medicine and Public Health
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• v.34 no.1
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• pp.9-20
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• 2001

Objectives : To explore the relationship between Percutaneous Transluminal Coronary Angioplasty(PTCA) volume and the associated immediate outcome. Methods : A total of 1,379 PTCAs were peformed in 25 hospitals in Korea between October 8 and December 31 in 1997. Data from 1,317 PTCAs (95.5%) were collected through medical record abstraction. Inter-observer reliability of the data was examined using the Kappa statistic on a subsample of 110 PTCA procedures from five hospitals. Intra-observer reliability of the data was also examined. PTCA success and immediate adverse outcomes were selected as the outcome variables. A successful PTCA was defined as a case that shows less than 50% diameter stenosis and more than 20% reduction of diameter stenosis. Immediate adverse outcomes included deaths during the same hospitalization, emergency coronary artery bypass graft (CABG) within 24 hours after PTCA, and acute myocardial infarction within 24 hours after PTCA. The numbers of PTCAs performed in 1997 per hospital were used as the volume variables. Results : Without adjusting for patient risk factors that may affect outcomes, procedures at high volume hospitals ($\geq200$ cases per year) had a greater success rate (P=0.001) than low volume hospitals. There was a marginally significant difference (P=0.070) in major adverse outcome rates between high and low volume hospitals. After adjusting for risk factors, there were significant differences in procedural failure and major adverse outcome rates between high and low volume hospitals. Conclusions : After adjusting for patient clinical risk factors, the hospital volume of PTCA was associated with immediate outcomes. It is recommended that a PTCA volume per year be established in order to improve the immediate outcome of this procedure in Korea.

• Tuberculosis and Respiratory Diseases
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• v.73 no.1
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• pp.38-47
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• 2012

Background: The prevalence rate of pulmonary tuberculosis (PTB) is steadily decreasing in South Korea. However, PTB is a disease with relatively high mortality and morbidity rates throughout Korea. Although there are many studies and statistics about the risk factors of PTB mortality in many countries, there are only a limited number of domestic papers on this topic. The aim of this study is to determine predictive factors for mortality among in-hospital patients associated with PTB. Methods: From December 2006 to January 2011, we reviewed medical records of 2,122 adult patients diagnosed with tuberculosis at a single tertiary hospital in a suburban area. In this study period, 960 patients were diagnosed with PTB by positive Acid fast bacilli smear and/or mycobacterial culture of the respiratory specimen. We compared the groups of patients deceased and patients discharged alive with PTB. The number of dead patients was 82 (47 males, 35 females). Results: Mortality was significantly associated with increased values of white blood cells (WBC), blood urine nitrogen (BUN), creatinine, C-reactive protein (CRP), numbers of involved lung field, and length of hospitalization. Also, it was associated with the decreased values of hemoglobin, lymphocyte, sodium, albumin, and cholesterol. Furthermore, admission through the emergency department, initial intensive care unit admission, and drug resistant PTB affected mortality in PTB patients. Independent predictors associated with PTB mortality are BUN, initial intensive care unit care, and admission during treatment of tuberculosis. Conclusion: In our study, mortality of pulmonary tuberculosis was related with parameters associated with nutritional status, disease severity at the time of admission, and drug resistance.

• Research in Community and Public Health Nursing
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• v.6 no.2
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• pp.299-318
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• 1995

This study was conducted in order to grasp the condition of the Worker's knowledge and attitude about health management. And to offer the basic materials for the health promotion in industrial field. The objects were comprised 336 of volunteered who work in E.shoemaking factory. The material of this study was the questionair (chronbach a=.8871) suited to the purposed of this research which has been made through studying references. All the guestionaire were collected inmediately without explanation. The data collected from 18th September to 1st Octover. Analysis of the data was done utilizing SAS program for percentage, mean, ANDVA. The result are as follows: 1. General features of the objects of study. Male was highest (58.6%), mean age was 30.07 years, graduated high school was highest(59.2%), producer in present place of employment was highest (76.2%), mean career was 7.45 years. 2. The conditions of attitude about health man agement. Correct answer of health examination was 77.8%. Having experience of health examination was 69.5%, among them have regularity was 70.9%. Think it too much trouble to do not health examination was 69.7%. Have got to do health examination was 95.6%. The reason of set up health clinic was emergency care 58.9%, health education 22.1%. Using health clinic was 70.4%, by monthly was 53.0%. The reason of think it too much trouble to use not health clinic was 65.2% The need of health clinic was 96.4% 3. The conditions of knowledge about health management. When 5 points was given to 'very affirming' and 1 point was given to 'very deny', the total average was 3.67, the range was 2.96-4.54. Exactly, company must given to employee put in operative health examination was highest, worked 34 hours per week on harmful worked place was lowest. And knowing about kind of harmful work was 2.86, dangerous work was 2.90. 4. Correlation between the general features and attitude variables. Female group may have more knowledge on reason of health examination. Over 50 years aged group, middle school graduated group, white colored group, less then 1 year career group may have more knowledge on health examination. White colored group may have more attitude on health examination$(\chi^2=5.210,\;P<.07)$. High careered group may have more using on health clinic $(\chi^2=12.08,\;P<.007)$. 5. Difference between the general features and knowledge of health management. High educated group were highest score in knowledge (F=5.214, P<.002). White colored group were highest score in knowledge (F=23.019, P<.000). 6. Difference between the attitude and knowledge of health management. Needing of health examination group were highest score in knowledge. (t=2.54, P<.011). Using of health clinic group were highest score in knowledge(t=190, P<.048). Needing of health clinic group were highest score in knowledge(t=5.13, P<.000).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.2
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• pp.788-794
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• 2011

The purpose of this study was to investigate the correlation between regular mealtime, oral health knowledge and oral health to prevent dental impairment of college students. This research design is correlation study. Data of 903 were collected from June 1 to June 30, 2010. Data were analyzed using the SPSS PASW Statistics 18.0 Program. More than 50% of respondents were the irregular mealtime. Higher percentage of correct answer in the oral health knowledge showed periodontal disease prevention(82.6%). There were a statistical significant in grade, major, smoking, drinking, and wishing for dental care between general characteristics and regular mealtime respectively(p<.05). Between general characteristics and oral health knowledge were a statistical significant in gender, age, grade, smoking, and dental checkup respectively(p<.05). On the other hand, there was a statistical significant wishing for dental care between general characteristics and oral health(p<.001). Regular mealtime was negatively associated with oral health(p<.01). Education for oral health should include regular mealtime, prohibit of smoking and alcohol, right toothbrushing and so on.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.8
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• pp.152-161
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• 2017

The purpose of this study was to establish a model for the structural relationship between the participation motivation and flow experience, self-achievement and life satisfaction in windsurfers. The subjects in this study were 206 selected male and female adults who windsurfed on a beach in Yangyang-gun, Gangwon Province. The statistical packages SPSS 20.0 and AMOS 16.0 were used to conduct the statistical analysis of the collected data. First, the participation motivation of the windsurfers exercised a significant influence on their flow experience(t=18.156, p<.001). Second, the participation motivation of the windsurfers had a significant impact on their self-achievement(t=19.848, p<.001). Third, the participation motivation of the windsurfers affected their life satisfaction in a significant way(t=8.219, p<.001). Fourth, the flow experience of the windsurfers impacted on their self-achievement in a significant manner (t=9.769, p<.001). Fifth, the flow experience of the windsurfers had no significant impact on their life satisfaction(t=16.033, p<.001). Sixth, the self- achievement of the windsurfers didn't exert any significant influence on their life satisfaction(t=17.438, p<.001). The findings of this study can be used to help windsurfers improve their quality of life.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.6
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• pp.4040-4047
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• 2015

The purpose of this study was to analyze a change in Post-traumatic Stress Disorder (PTSD) level and the continuity of the effects in music therapy by applying short-term music therapy program in fire fighters with Post-traumatic Stress (PTS). Forty two fire fighters in 3 districts were randomly assigned to experimental group (21 subjects) and control group (21 subjects). Music therapy was applied in totally 10 sessions by two sessions (120 minutes) a day for 5 days. PTS level was measured immediately after the end of program, after 4 weeks, and after 12 weeks. As a result, PTS level has significantly decreased into $8.90{\pm}4.55$ from $26.52{\pm}2.32$ right after the music therapy program(p<0.05). And the effect was shown to be continued significantly up to after 4 weeks($11.95{\pm}4.57$) and after 12 weeks($13.76{\pm}5.62$)(p<0.05). As a result of research, it is considered that the music therapy is effective approach for reduction in PTS as for fire fighters who belong to the group with high risk of PTSD. Accordingly, the application of regular program for managing fire fighters' mental health is understood to likely to contribute to enhancing the field service competence.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.4
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• pp.1732-1739
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• 2011

This study aims to make a comparison of educational effectiveness between instructor-centered learning and video self-instruction(VSI) about automatic external defibrillator(AED) for high school girls in order to help select an effective teaching method concerning AED. A total of 59 high school girls (29 for the experimental group, 30 for the control group) in J Province participated in this study from July 7 to 14, 2010. The analysis was carried out by using an SPSS WIN 12.0 Version program. After the AED instruction, the knowledge increased more in the experimental group (1.72) than that in the control group (1.60); self-confidence increased more in the experimental group (1.58) than that in the control group (1.46); and accuracy of technical performance increased more in the control group (5.46) than that in the experimental group (4.20). The experimental group (5.68) was more satisfied with AED instruction than the control group (4.95). Since video self-instruction proved to be more educationally effective than instructor-centered learning in most areas, it is necessary to apply video self-instruction to AED instruction in the future. However, further researches are necessary to see if video self-instruction is effective.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.7
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• pp.2483-2490
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• 2010

The purpose of this study is to offer information on the more effective sports wear to club members, who are participating in badminton, by closely examining influence in lifestyle of participants in badminton upon the sportswear benefit sought. The subjects of this study were selected male and female adults, who are joining now by subscribing to badminton club in Gangwondo Province, as the population. It sampled totally 206 people by convenience sampling, and carried out frequency analysis, reliability & factor analysis, and multiple regression analysis by using SPSS/PC+ 11.0 Version. The conclusions of this study are as follows. First, it was indicated that there is correlation between lifestyle and sportswear benefit sought of participants in badminton. Second, it was indicated to have influence upon the ideal benefit sought, which is the sportswear benefit sought, in order of the fashion sought bandwagon and the social orientation, which are sub-factors of lifestyle. Third, it was indicated to have influence upon the fashion & brand benefit sought, which is the sportswear benefit sought, in order of the material sought, the fashion sought bandwagon, and the satisfaction with reality, which are sub-factors of lifestyle. Fourth, it was indicated to have influence upon the convenience benefit sought, which is the sportswear benefit sought, in order of the self-loyalty, the social orientation, the health sought, and the satisfaction with reality, which are sub-factors of lifestyle. Fifth, lifestyle was indicated to have influence upon the youth & individuality benefit sought in order of the fashion sought bandwagon, the material sought, and the social orientation. The sportswear product in the better quality will be able to be expected for sports activity, by which the subjects of participating in sports activity correctly grasp the sportswear benefit sought, based on these results.

• Journal of radiological science and technology
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• v.41 no.1
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• pp.7-12
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• 2018

Patients who visit the emergency room with urinary stones have difficulty lying down in a supine position due to severe pain when performing the KUB test. The purpose of this study was to find methods to reduce the patients' pain and image distortion, and obtain medical images with high diagnostic values. After checking the standard classification of disease and cause of death, the target group consisted of 121 patients who had clearly distinguished stones from computed tomography. Patients with stones in the ureteralvesical junction were excluded. Qualitative image evaluation was performed by confirming the location of the stone in the computed tomography images. and evaluated the rate of visual discrimination of stones possible through KUB and abdominal plain X-ray. Quantitative image evaluation was performed on the KUB, abdominal plain X-ray images. The transverse process of the first lumbar vertebrae served as the standard point, and the length from this point to the lower part of the stone was measured. Results from looking at the rate of visual discrimination of stones possible through KUB and abdominal plain X-ray showed: 94 patients (77.6%) for KUB images and 91 patients (75.2%) for computed tomography images. The standard deviation for KUB and abdominal X-ray was 3 (2.4%). Comparing and analyzing the location from KUB images and abdominal plain X-ray images, the stone position was 10.1 mm in the kidney, 10.5 mm in the ureteropelvic junction, and 9.7 mm in the ureters. It was shown that the stone moved 10 mm on average with significant statistical difference (P<0.05). In cases where the pain is so severe that it is impossible to perform the test in the supine position, an alternative may be to check the stone position by performing a modified KUB test by having the patient stand in a vertical position. In the future, this will provide convenience to both the examiner and the patient when performing the examination, and it will contribute with its reproducibility.

• Journal of Chest Surgery
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• v.18 no.4
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• pp.753-758
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• 1985

Hemorrhage is an important complication after operation with cardiopulmonary bypass and sometimes necessitates a further emergency operation. Between July, 1962 and June, 1985, reoperation for hemorrhage was carried out on 81 patients [3.1%] out of a total 2634 patients who had previously undergone cardiopulmonary bypass surgery at the Department of Thoracic and Cardiovascular Surgery, Yonsei University Medical Center. There were 38 males and 43 females, with an average age of 25 years [ranging 6 months to 60 years] and an average body weight of 38 kg [ranging 5 to 77 kg].There were 43 patients of cyanotic heart disease, 32 patients of acquired valvular heart disease, 4 patients of coronary artery occlusive disease, 2 patients of ascending aorta aneurysm and annuloaortic ectasia. The average amount of blood loss in the case of cyanotic heart disease was 71.7140ml/kg, in acyanotic heart disease 45.16.3ml/kg, in acquired heart disease, 56.514.4ml/kg and in coronary artery occlusive disease, 50.618.7ml/kg during first post operative day. But there was no statistical difference [p>0.05]. The mean blood loss below 10 years old was 70.412.1 ml/kg. Those below 10 years old were believed to bleed more than any other group. But there was also no statistical difference [p>0.05]. Indications for reoperation were continued excessive blood loss [74%], cardiac tamponade or hypotension [23%] and radiological evidence of a large hematoma in the thorax and pericardium [2%]. Average bypass time was 2.10.1 hours [ranging 30 minutes to 5 hours]. The interval between operation and reoperation was as follows; less than 12 hours in 49 patients [60%], 12 to 24 hours in 20 patients [25%], 24 to 48 hours in 8 patients [10%], more than 48 hours in 4 patients [5%]. The commonest sites for bleeding were chest wall [36%], heart [34%], aorta [12%], pericardium [6%], thymus [5%] and others [6%]. But no definite source was found in ll patients [31%]. Twenty seven out of 81 patients [31%] had wound problems and 5 patients [6%] were expired. [Mean SEM]. In conclusion, in order to decrease the amount of blood loss after open heart surgery with cardiopulmonary bypass, shortening of bypass time and bleeding control at the wire suture site during chest wall closure were important. If the amount of blood loss was over 45 ml/kg or 8 m/kg/hour, reoperation should be considered as soon as possible. After operating, careful wound dressings were applied to prevent wound problems.