Estimates of hospital and physician costs of epilepsy in the United States for 1995 comparing the provider -based survey method and a patient -based medical charts and billing method

This investigation compares two different methodologies for calculating the national cost of epilepsy: provider-based survey method (PBSM) and the patient-based medical charts and billing method (PBMC&BM). The PBSM uses the National Hospital Discharge Survey (NHDS), the National Hospital Ambulatory Medical Care Survey (NHAMCS) and the National Ambulatory Medical Care Survey (NAMCS) as the sources of utilization. The PBMC&BM uses patient data, charts and billings, to determine utilization rates for specific components of hospital, physician and drug prescriptions. ^ The 1995 hospital and physician cost of epilepsy is estimated to be $722 million using the PBSM and $1,058 million using the PBMC&BM. The difference of $336 million results from $136 million difference in utilization and $200 million difference in unit cost. ^ Utilization. The utilization difference of $136 million is composed of an inpatient variation of $129 million, $100 million hospital and $29 million physician, and an ambulatory variation of $7 million. The $100 million hospital variance is attributed to inclusion of febrile seizures in the PBSM, $−79 million, and the exclusion of admissions attributed to epilepsy, $179 million. The former suggests that the diagnostic codes used in the NHDS may not properly match the current definition of epilepsy as used in the PBMC&BM. The latter suggests NHDS errors in the attribution of an admission to the principal diagnosis. ^ The $29 million variance in inpatient physician utilization is the result of different per-day-of-care physician visit rates, 1.3 for the PBMC&BM versus 1.0 for the PBSM. The absence of visit frequency measures in the NHDS affects the internal validity of the PBSM estimate and requires the investigator to make conservative assumptions. ^ The remaining ambulatory resource utilization variance is $7 million. Of this amount, $22 million is the result of an underestimate of ancillaries in the NHAMCS and NAMCS extrapolations using the patient visit weight. ^ Unit cost. The resource cost variation is $200 million, inpatient is $22 million and ambulatory is $178 million. The inpatient variation of $22 million is composed of $19 million in hospital per day rates, due to a higher cost per day in the PBMC&BM, and $3 million in physician visit rates, due to a higher cost per visit in the PBMC&BM. ^ The ambulatory cost variance is $178 million, composed of higher per-physician-visit costs of $97 million and higher per-ancillary costs of $81 million. Both are attributed to the PBMC&BM's precise identification of resource utilization that permits accurate valuation. ^ Conclusion. Both methods have specific limitations. The PBSM strengths are its sample designs that lead to nationally representative estimates and permit statistical point and confidence interval estimation for the nation for certain variables under investigation. However, the findings of this investigation suggest the internal validity of the estimates derived is questionable and important additional information required to precisely estimate the cost of an illness is absent. ^ The PBMC&BM is a superior method in identifying resources utilized in the physician encounter with the patient permitting more accurate valuation. However, the PBMC&BM does not have the statistical reliability of the PBSM; it relies on synthesized national prevalence estimates to extrapolate a national cost estimate. While precision is important, the ability to generalize to the nation may be limited due to the small number of patients that are followed. ^

Financing hospital care in the United States.

Vols. 2-3 published by Blakiston Division, McGraw-Hill.

Three essays on hospital efficiency

This dissertation analyzes hospital efficiency using various econometric techniques. The first essay provides additional and recent evidence to the presence of contract management behavior in the U.S. hospital industry. Unlike previous studies, which focus on either an input-demand equation or the cost function of the firm, this paper estimates the two jointly using a system of nonlinear equations. Moreover, it addresses the longitudinal problem of institutions adopting contract management in different years, by creating a matched control group of non-adopters with the same longitudinal distribution as the group under study. The estimation procedure then finds that labor, and not capital, is the preferred input in U.S. hospitals regardless of managerial contract status. With institutions that adopt contract management benefiting from lower labor inefficiencies than the simulated non-contract adopters. These results suggest that while there is a propensity for expense preference behavior towards the labor input, contract managed firms are able to introduce efficiencies over conventional, owner controlled, firms. Using data for the years 1998 through 2007, the second essay investigates the production technology and cost efficiency faced by Florida hospitals. A stochastic frontier multiproduct cost function is estimated in order to test for economies of scale, economies of scope, and relative cost efficiencies. The results suggest that small-sized hospitals experience economies of scale, while large and medium sized institutions do not. The empirical findings show that Florida hospitals enjoy significant scope economies, regardless of size. Lastly, the evidence suggests that there is a link between hospital size and relative cost efficiency. The results of the study imply that state policy makers should be focused on increasing hospital scale for smaller institutions while facilitating the expansion of multiproduct production for larger hospitals. The third and final essay employs a two staged approach in analyzing the efficiency of hospitals in the state of Florida. In the first stage, the Banker, Charnes, and Cooper model of Data Envelopment Analysis is employed in order to derive overall technical efficiency scores for each non-specialty hospital in the state. Additionally, input slacks are calculated and reported in order to identify the factors of production that each hospital may be over utilizing. In the second stage, we employ a Tobit regression model in order to analyze the effects a number of structural, managerial, and environmental factors may have on a hospital’s efficiency. The results indicated that most non-specialty hospitals in the state are operating away from the efficient production frontier. The results also indicate that the structural make up, managerial choices, and level of competition Florida hospitals face have an impact on their overall technical efficiency.

O papel dos sistemas de informação do Hospital de Curry Cabral na gestão hospitalar : Estudo de caso num serviço de radiologia

Os sistemas de informação, enquanto ferramenta da gestão, podem contribuir para o desenvolvimento das organizações sendo atualmente visível esta preocupação nos órgãos de gestão dos serviços de saúde. No processo de implementação dos sistemas de informação a economia da informação assume um destaque pela sua componente de mais-valia. No presente trabalho, fizemos uma caracterização dos sistemas de informação utilizados no serviço de radiologia do hospital Curry Cabral e percebemos como os profissionais trabalhavam e atualizavam a informação nesses mesmos sistemas. Analisámos posteriormente a produtividade através de índices criados para o próprio serviço, antes e depois da implementação dos sistemas de informação, para entender até que ponto podemos falar da economia da informação. Através de uma abordagem quantitativa pretendeu-se a realização de um estudo descritivo com recurso à técnica de inquérito através de questionário aplicado a 55 profissionais do serviço, nomeadamente a 17 médicos de radiologia, a 6 administrativas e a 31 técnicos de radiologia. De uma forma geral, os dados obtidos nesta investigação permitem verificar que a atualização dos sistemas de informação por parte dos profissionais deste serviço ocorre de uma forma bem conduzida e cuidada, nomeadamente pelos técnicos de radiologia. Entendemos também que de uma forma geral todos os profissionais estão cientes que os sistemas de informação contribuem para o auxílio na gestão principalmente devido a uma melhor monitorização do trabalho efetuado. Relativamente aos índices de produtividade percebemos que são difíceis de quantificar, no entanto, e de um modo geral esta aumentou em valores pouco significativos, cerca de 2,3%. ABSTRACT: The information Technology as a management tool can contribute to the healthy development of the organization. This fact has become visible by the interest showed on IT by the management body of the Health Services. On the implementation process of the IT Services the economy of information assumes a major role as a powerful and altering force to the landscape. ln this thesis we studied the IT services used by the Radiology Service of the Hospital Curry Cabral, and tried to understand how the professionals work, by using and improving the information on those systems. We analyze the productivity using markers built for the specified service, before and after the implementation of the IT Services to understand how far into the "IT Economics" we have traveled. Thru a direct approach a study was conducted using a questionnaire, and a target audience of 55 local radiology professionals, namely 17 radiology doctors, 6 service secretaries and 31 radiology technicians. ln general, the data gathered by this investigation, allowed us to verify that the data collected and updated by the Radiology professionals, is carefully collected, especially by the Radiology Technicians. We have also found that generally all Hospital professionals see the IT Services as a major help for management mainly thru better monitoring of accomplished work. ln relation to the productivity indexes we have found that they are hard to quantify, because certain aspects are close to impossible to ascertain, but in gross it has grown but in less than expected, more or less 2,3%.

Exchange relationships in building services maintenance activity : a test of transaction cost economics and the resource dependency view

The firm is faced with a decision concerning the nature of intra-organizational exchange relationships with internal human resources and the nature or inter-organizational exchange relationships with market firms. In both situations, the firm can develop an exchange that ranges from a discrete exchange to a relational exchange. Transaction Cost Economics (TCE) and the Resource Dependency View (RDV) represent alternative efficiency-based explanations fo the nature of the exchange relationship. The aim of the paper is to test these two theories in respect of air conditioning maintenance in retail centres. Multiple sources of information are genereated from case studies of Australian retail centres to test these theories in respoect of internalized operations management (concerning strategic aspects of air conditioning maintenance) and externalized planned routine air conditioning maintenance. The analysis of the data centres on pattern matching. It is concluded that the data supports TCE - on the basis of a development in TCE's contractual schema. Further research is suggested towards taking a pluralistic stance and developing a combined efficiency and power hypothesis - upon which Williamson has speculated. For practice, the conclusions also offer a timely cautionary note concerning the adoption of one approach in all exchange relationships.