| Summary: | 碩士 === 國立陽明大學 === 公共衛生研究所 === 87 === The utilization of medical technology is one of the main reasons for the medical expenditure increasing. In Taiwan, the ratio of Computed Tomography(CT) has been increased 15% from 1990 to 1996. It is deserved to research whether high technology utilization is related to individual''s or hospital''s specific characters or not.
The database includes national wide inpatient information from 1997 Jan. to Dec. which is supported by Bureau of National Health Insurance. This paper focus on the relationship of CT scan utilization between factors of individuals and different hospitals (i.e. Total patient, neurology group, cereovascular group). A model has been developed which tries to help people to analyze the hospital easier.
The key finding of this paper as following:
1. The utilization rate of CT scan per used patient during the same period: once: 91.3%, more than twice 8.7%. The highest utilization for CT scan is 12 times.
2. The analysis of individual utilization rate for totally, neurology group and cereovascular group are 8.56%, 33.9%, 43.46%. In totally patient group, the elder patients trend to have higher utilization rate of CT scan and sex also effects the rate.
3. Analysis of hospital utilization rate: The effective factors of whole patients are hospital level, public or private, average length of stay, quantity of CT scanner. The effective factors of neurology group are hospital level, public or private, average length of stay. The effective factors of cereovascular group are hospital level, public or private, quantity of CT scanner.
As can be seen, the CT utilization rate will increase 2.1% when one new CT scanner is added. This conclusion can be deeply concerned by authority when a hospital applying a new CT scanner.
The quantity of CT utilization is not a proper standard to determine the hospitals. This paper offer an objective adjust CT rate through analyze variety casemix. This can be used by authority to verify CT utilization rate or be the reference materials in hospital management.
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