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- 저자 : 이해종 ( Lee Haejong ) (검색결과 7 건)
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최석천(Seukcheun choi),이해종(Haejong Lee),김세현(Sehyun Kim),정한식(Hanshik Chung),이광영(Kwangyoung Lee),정효민(Hyomin Jeong) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study. a computer analysis has been developed for predicting the pipe pressure of the intake and exhaust manifold. To obtain the boundary conditions for a numerical analysis, one dimensional and non-steady gas dynamic calculation is performed by using the MOC(Method Of Characteristic). The main numerical parameters are the variation of the engine revolution to calculate the pulsating flow which the intake and exhaust valves are working. The comparison of exhaust pressure in case of numerical results is quite matched with in case of experimental results. When engine revaluation is increased, the pressure amplitude showed a high value, but the pressure frequency was decreased.<br/>
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선택진료제도 개선이 폐암환자 의료이용 및 본인부담액에 미치는 영향
전인숙 ( Insook Jeon ),이해종 ( Haejong Lee ) 한국병원경영학회 2017 병원경영학회지 Vol.22 No.4
In the Health Insurance System of South Korea, patients must pay high out-of-pocket expenditures for the medical service by uninsured medical benefits. So, the government implemented a policy to relieve the burdens of patients by lowering the uninsured selective-medical treatment costs in August, 2014. This study investigate the policy effects of selective-medical treatment(SMT) on the medical service's usage and cost with severe lung cancer patients. The patients are selected in one university hospital(with 1,000 beds), between one year before and after policy implementation. The study find that the usages of outpatient(visit number) and inpatient (length of stay) are not changed by statistically significant. It means that there are no effect in medical service behavior between before and after the policy. In medical expenses, outpatients decreased in their out-of-pocket payments by policy, but total medical expenses and insured medical benefits is not changed, because of the increased another medical insurance fees. For inpatient, although the SMT costs are statistically significant decrease, the total out-of-pocket payments and insured medical expenses are not changed statistically significant. Those findings show that the political decision making about SMT made lowing the selective-medical expenses, but total insured cost and patient' s out-of pocket money were not changed by the new increased medical insurance fees. It means that the policy about SMT gave no particular benefit for patients. So, it need another benefit plans to lower the medical expenses of severe lung cancer patients with a high medical service usage and much total medical expense.
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응급환자 추이예측 분석 : AMI, Stroke, ICISS 기반 중증질환자
정재연 ( Jeong Jaeyeon ),정지윤 ( Jeong Jiyun ),이해종 ( Lee Haejong ) 경희대학교 경영연구원 2021 의료경영학연구 Vol.15 No.1
Purpose: The purpose of this study is to identify the trends and seasonality of the three major emergency diseases(Acute myocardiac infarction, Stroke, Severe trauma) and to use them to establish efficient resources and evidence-based physicians to predict the number of patients. Methodology: From 2014 to 2018, the number of patients who received emergency medical care for acute myocardial infarction, stroke, and severe trauma (based on ICISS 2008) was predicted using Emergency Medical Status Statistics provided by the National Medical Center. Based on the Autoregressive integrated moving average model, the increasing trend and seasonality of patients by disease were confirmed and the number of patients was predicted. Findings: Since 2014, the number of patients with emergency diseases has steadily increased, with the highest number of patients in the order of Severe trauma (based on ICISS 2008), Stroke, and Acute myocardiac infarction. Patients with cerebrovascular disease, such as Acute myocardiac infarction and stroke, increased rapidly in winter(Oct-Jan), and patients with severe trauma increased mainly in summer or autumn(May-Oct) and number of patients will increase with seasonality. Practical Implications: The number of major emergency patients is expected to increase steadily over time, so it is important to be prepared for this. Therefore, providing emergency care with limited resources is a very important issue, and in order to prepare for the growing elderly population, emergency medical patients, and unpredictable infectious diseases, it is necessary to keep track of the number of patients for each emergency disease.
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건강보험빅데이터의 고혈압 입원율 분석을 통한 장애인의 의료접근성 실증 분석
전희원,홍민정,정재연,김예순,이창우,이해종,신의철,Jeon, HuiWon,Hong, MinJung,Jeong, JaeYeon,Kim, YeSoon,Lee, ChangWoo,Lee, HaeJong,Shin, EulChul 한국병원경영학회 2022 병원경영학회지 Vol.27 No.1
Background: This study aims to empirically compare and evaluate the current status of medical accessibility and health inequality between people with disabilities and without. We calculated the ACSC hospitalization rate, which is a medical accessibility index, for hypertension, a major risk factor for cardiovascular disease that accounts for more than 20% of deaths among people with disabilities using the 2016 National Health Insurance Big Data. Methods: The subjects of the study were a total of 601,520, including 64,018 people with disabilities and 537,501 people without. Logistic regression was performed to analyze the differences in hypertension hospitalization rates adjusted for demographic and sociological characteristics and disease characteristics using SAS 9.4 program. Results: Before adjusting for the characteristics, the hypertension hospitalization rate of people with disabilities was 1.55%, and the people without disabilities were 0.49%. After adjusting, it was found that people with disabilities were 2.11 times higher than people without disabilities, and it was statistically significant. Conclusion: The preventable hospitalization rate of people with disabilities is higher than that of people without, suggesting that the disabled have problems with access to medical care and health inequality. Therefore, the government's policy improvement is required to close the medical gap for the disabled.
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국립대학병원의 환자 만족도 분석 : 7개 국립대학병원의 입원·외래간 비교
이규식,이해종,조경숙,설동진 한국병원경영학회 1997 병원경영학회지 Vol.3 No.1
The objectives of this research are 1) to identify different motivation of choice for each National University hospitals 2) to examine the factors influencing the patients' satisfaction, 3) and to investigate that the patients' satisfaction effects the hospital re-choice and recommendation on seven National University's hospitals. The data for this analysis were collected by questionnaire survey. Totally 852 interviews were conducted. The major statistical methods used for the analysis are paired t-test, factor analysis, χ2-test, and multiple regression. We find that satisfaction level is a function of not only the quality of medical service but also non-medical service. The main results of research are follows : 1) The most important factor of hospital choices is 'the trust and fame as National University hospitals' : 2) Overall satisfaction of inpatients is turned to be influenced by the doctor's services, nurse's services, environment, and convenience. And overall satisfaction of outpatients is also found to be influenced by the waiting time for lab test : 3) Highly satisfied patients preferred to revisit and to recommend to others.
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