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    • 병원 M/A Ratio의 측정ㆍ활용에 관한 연구

      황인경 인제대학교 1991 仁濟論叢 Vol.7 No.2

      An important aspect of price control over medical insurance service by the Government is what methodologies are used by the research intitutions to reflect changes in the volume of service in price increase rate. This study attempts to develop and suggest same new approaches, using the ratio of hospital marginal to average cost(M/A ratio), that can appropriately reflect the volume changes. Methods of mesurement, behaviors and uses of the M/A ratio were reviewed through related stuies reported in the U.S.A. Domestic study reprots that calculated and suggested the increase rates were also reviewed and analysed in terms of their strength and weakness of methodologies adopted. Based on these reviews and analyses, new formuala and approaches were developed, their strengths and weaknesses were examined in comparison with those being currently used, and important factors to be considered in measuring the M/A ratio were suggested. Key results of this study can be summarized as follows. 1. When contribution margin rate,(1-v/p), is used to calculate the price adjustment rate, as is the case in the existing studies, following undesirable consequences can be resulted. 1) Due to the difference between studies in finding and aggregation of variable costs, varying contribution margin rates and, as a result, varging price adjustment rates can be calulated. 2) Due to the assumption that fixed cost will not change in the projected year, the price adjustment rate can be under-or overestimated. 2. An alternative formula that can avoid such a problem can be devised under the condition that price adjustment rate be the rate of change in average cost between base and projected years. When PVIR denotes the projected volume increase rate, the new formula can be derived as ; PVIR(1+M/A)/(1+PVIR) 3. M/A ratio can be used to determine the price descrimination rates of the fee for Patient Management Service. Two newly suggested approaches alternative to the existing pricing system are ; 1) Case based discriminating system, which sets the servie prices by DRGs and discriminates them by the specified ranges of the length of stay, and 2) Medical institutions group based differing discriminating system, which maintains the current pricing system but applies differing discriminating rate systems to each group of medical institution. 4. M/A ratio can also be widely used to control and manage medical costs by developing relevant and proper aggregated indicies for medical institutional groups, individual hospitals, or specific service categories.

    • 의료보험 다빈도 입원상병의 진료비 및 재원일수 분석

      황인경 인제대학교 1995 仁濟論叢 Vol.11 No.2

      An effective management of frequently occurring inpatient diseases becomes increasingly important in the situation under which the range of medical insurance benefits are expanded. This study attempts to analize the distribution and occurance rate of the insurance claims, the relative level and variance of ,the inpatient charges and length of stay and the degree of effects the patient and hospital related variables have on the charges and duration of stay. Five frequently claimed inpatient diseases were selected ; delivery in a completely normal case, acute appendictis, chronic liver disease and cirrhosis, diabetes, and malignant neoplasm of stomach. Relevant data were collected for the year 1991 from the computer database of the Korea Medical Insurance Corportion and analysed using relevant computer-aided statistics programs. Major findings and conclusions are as follows ; Firstly, the coefficient of variance of the charges and length of stay were found to be high when they are more chronic and when the inpatients are admitted in the teriary hospitals. For the effective control of the medical insurance expenditure it is suggested that the variance be reduced and that diseases and hospitals which have high variance be managed. Secondly, the variance of per case charges of the disease were explained as much as 39.5% to 64.3% by the variable "day of stay" and 7.4% to 31.4% by the variable "average daily charge", which means that they can be used as decisive factors to control the medical insurance expenses. Thirdly, the patient and hospital related variables which are non-clinical and non-diagnostic/therapeutic were found to have the R2 value less than 0.1, which means that they are not important factors affecting the days of stay and avererage daily charges. However, it was found that such variables as hospital's type, teaching status and hospital location and patient's age have relatively high explanatory power ranging 3.1% to 8.3% respectively. This implies that the variables can be utilized as a policy tool for the effective control of the medical expenses.

    • KCI등재
    • 1,3-dipolar cycloaddition 반응을 통해 아민 기능화된 CNT에 담지된 (n-BuCp)2ZrCl2 촉매를 이용한 CNT/PE 복합체 합성

      황인경,고영수 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0

      Carbon nanotube (CNT)는 뛰어난 열적, 전기적 특성을 가지고 있는 나노 소재로 많은 관심을 받고 있다. 그러나 CNT 간의 Van der Waals force에 의해서 응집구조를 쉽게 형성하여 균일한 복합체를 제조할 수 없는 단점이 있다. 이를 개선하기 위해 표면의 화학적 기능화 연구가 진행되고 있다. 본 연구에서는 다양한 aldehyde compound와 amino acid를 이용한 1,3-dipolar cycloaddition 반응을 통해 CNT 표면에 pyrrolidine ring을 기능화하였다. 표면 기능화 시 다양한 aldehyde compound와 amino acid의 몰 비와 반응조건을 변화시켜 실험을 진행하였다. 표면 기능화된 MWCNT에 메탈로센 촉매와 조촉매 methylaluminoxane(MAO)을 담지한 후, in-situ 에틸렌 중합 특성을 분석하였다.

    • KCI등재

      病院 藥師人力의 算定

      黃仁慶 한국병원약사회 1987 병원약사회지 Vol.4 No.1

      인력산정에 있어서 적정인력 또는 적정정원이라 함은 미시적 방법에 의하여 과학적이고 합리적인 업무분석절차를 거쳐 산정된 인력을 말한다. 적정인력은 다른 말로 말하면 조직이 설정한 어떤 수준의 질적 및 양적 목표를 효과적이고 효율적으로 수행하는데 필요한 인력이라고도 정의할 수 있다. 병원 약사인력의 산정에 있어서 조제건수 등과 같은 단일의 기준을 사용하는 인력산정방법은 변화해가고 있는 현대의 병원약제부서의 기능을 포괄적으로 반영해 주지 못하는 단점을 갖고 있다. 제수를 기준으로 인력을 산정할 경우에는 이러한 단점이 비교적 많이 개선될 수 있으나 마찬가지로 조제업무 이외의 업무량은 잘 반영해주지 못하는 약점이 남게 된다. 따라서 병원약사가 수행하는 각 분야별 업무를 포괄적으로 반영해 줄 수 있는 단일의 공식을 찾기 위해서는 표본병원을 선정하고 약제부서의 업무를 분야별로 분석한 다음 업무량의 변동에 가장 큰 영향을 미치는 주요변수와 그 함수 관계를 찾을 필요가 있다. 그러나 이와 같은 보편적인 병언약사 인력의 산정기준이 개발된다 하더라도 각 병원의 약제부서는 미시적 방법에 의한 적정인력의 산정에 관심을 기울이는 것이 바람직하다. 왜냐하면 병원의 약제부서는 환자의 질병패턴 등 끊임없이 계속되고 있는 외부환경적 요인의 변화에 대처하고 각 병원의 특성에 맞는 다각적인 의약 서비스의 개선을 계속 추진할 필요가 있는 바 업무분석에 의한 적정인력의 산정이 이를 위한 효과적인 수단이 될 수 있기 때문이다.

    • 병원의 재무운영관리개선을 위한 기초조사연구 : 흑자 및 적자병원을 중심으로

      황인경,강성홍,유차남 인제대학교 1993 仁濟論叢 Vol.9 No.1

      This study aims at examining the differences in hospital financial operation and management between black and red-figure hospitals, and thereby contributing to the improvement of hospital business. A survey form was developed, financial operational data were collected from twenty four black-figure and twenty three red-figure hospitals, and the data were compared between the two hospital groups using the relevent analysis indicators. Major findings and conclusion of this study are as fellows ; 1. Many of the black-figure hospitals were found to be located in medium and small-sized cities. Their hospital bed size was not also large, having 233 hospital beds in average. 2. The black-figure hospitals were found to have following finacial operational characteristics when compared to the red-figure ones. 1) Control over the number of hospital staff to keep it below an appropriate level. 2) Control over inappropriate investment to the high price medical equipments and fixed assets. 3) Expansion of the outside-order contracts. 4) Increase of the hospital bed turn-over. 5) Active debt financing and an appropriate use of the funds. 3. It can be concluded that an excessive recruitment of the hospital staff and investment to fixed assets act as one of primary factors causing operational deficits, and that an excessive possession of the high price medical equipments does not contribute to the realization of the medical profits.

    • KCI등재
    • KCI등재

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