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Variable catchment sizes for the two-step floating catchment area (2SFCA) method

机译：两步浮动集水区（2SFCA）方法的集水区大小可变

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摘要

Government efforts designed to help improve healthcare access rely on accurate measures of accessibility so that resources can be allocated to truly needy areas. In order to capture the interaction between physicians and populations, various access measures have been utilized, including the popular two-step floating catchment area (2SFCA) method. However, despite the many advantages of 2SFCA, the problems associated with using fixed catchment sizes have not been satisfactorily addressed. We propose a new method to dynamically determine physician and population catchment sizes by incrementally increasing the catchment until a base population and a physician-to-population ratio are met. Preliminary application to the ten-county region in northern Illinois has demonstrated that the new method is effective in determining the appropriate catchment sizes across the urban to suburban/rural continuum and has revealed greater detail in spatial variation of accessibility compared to results using fixed catchment sizes.
机译：政府旨在帮助改善医疗保健状况的工作依赖于对可达性的准确衡量，以便可以将资源分配到真正有需要的地区。为了捕获医师与人群之间的互动，已采用了各种访问措施，包括流行的两步浮动集水区（2SFCA）方法。但是，尽管2SFCA具有许多优点，但仍不能令人满意地解决与使用固定集水区大小相关的问题。我们提出了一种新的方法，通过逐步增加流域直至基本人口和医师与人口的比例得到满足，来动态确定医师和人口的规模。在伊利诺伊州北部的十县地区的初步应用表明，该新方法可以有效地确定整个城市到郊区/农村连续体的适当集水区规模，并且与使用固定集水区规模的结果相比，可及性的空间变化更加详细。

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