A choice model for estimating realized accessibility: case study for obstetrics care in Korea

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Improving accessibility to care in medically under-served areas(MUAs) is the goal of MUA support program in public health policy. In the planning phase of such programs, we often use geographical proximity of care facilities as a measure of accessibility, and the programs resource is used to maximize the geographical accessibility. While it is easy to assess the geographical accessibility, this is not always an accurate assessment of the actual, realized accessibility because true accessibility is realized by the actual service use by patients. The choice of a specific care provider by patients is made not just by a physical distance, but by many other factors including the size of a care provider, physician's demographic, etc. Predicting true accessibility thus requires a model that considers various factors in the patients decision making, and in this paper, we use a choice model known as the conditional logit model. We use the actual health insurance data from Korea to identify factors affecting patients choice of care providers and model the provider choice behavior of patients by using the MNL model. To validate the proposed model, we compare the actual patient volumes for care providers with the model prediction, and the results show a good agreement suggesting theMNLmodel is a promising approach to assess true accessibility to care.
Publisher
International Conference on Health Care Systems Engineering
Issue Date
2017-05-30
Language
English
Citation

3rd International Conference on Health Care Systems Engineering (HCSE), pp.73 - 85

DOI
10.1007/978-3-319-66146-9_7
URI
http://hdl.handle.net/10203/224239
Appears in Collection
IE-Conference Papers(학술회의논문)
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