英文摘要
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ABSTRACT
The Nation Health Insurance system(NHI)of Taiwan has been operating around 15 years. The most important issue is the growing deficit problem. In order to control deficit and ensure survival of NHI, the Bereau of Nation Health Insurance (BNHI) has executed many adjustment policies. co-payment policy is one of the common use policies to restrain medical demand of people and to implement referring system. For the past 15 years, co-payment policy had been adjusted 8 times, the latest adjustment was made in 2005. The purpose of my research is to understand the adjustment effect of NHI co-payment policy in 2005, especially in restraining medical demand of people and the validity of referring system.
The sample in my research uses “National Health Insurance Research Database”, which was produced by National health Research Institutes. There are 110,129 people who had medical record during July 15, 2004 to October 14, 2006 (before and after the co-payment policy was implemented). I adopt random effect model to analyze the adjustment effect of NHI co-payment policy in 2005. In order to make research results more robust, I select the people who were defined as frequent visitors of outpatient services, then testing whether the adjustment of co-payment policy in 2005 could control their medical utilization. In addition, I select the people who have a preference for high-level hospital for medical treatment and have diseases suited to all-level medical institutions for medical treatment and have diseases suited to advanced hospital for medical treatment, then testing whether the adjustment of co-payment policy in 2005 could improve referring system.
According to the empirical result, the adjustment of co-payment policy in 2005 not only could control medical demand of people effectively, but also inhibited frequent visitors of outpatient services effectively. In addition, the adjustment of co-payment policy in 2005 drove people to implement referring system, and push people who have a preference for advanced hospitals for medical treatment to low-level hospitals. Finally, I distinguish the sample by specific disease type. After testing, it is clearer to understand that the adjustment of co-payment policy in 2005 can improve referring system and does not affect people who have medical demands for advanced hospitals for medical treatment.
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