McGregor Jessica, Hanlon Neil, Emmons Scott, Voaklander Don, Kelly Karen
University of Northern British Columbia, Prince George, BC.
Can J Rural Med. 2005 Summer;10(3):163-8.
Geographic access to emergency treatment remains an important public policy concern as rural emergency medical systems respond to various pressures to centralize services. Geographical Information Systems (GIS) are effective tools to determine what proportion of a given population is adequately served by existing or proposed service distributions.
This study compares 2 GIS approaches to determining whether recent standards of emergency care access established by the British Columbia Ministry of Health Services are being met in Northern British Columbia. In particular, we compare results obtained using the more commonly used straight-line, or "as the crow flies," method with those obtained using a more sophisticated method that estimates travel time using digitally referenced road network data.
Both methods reveal that provincial standards of emergency access are not being met in Northern British Columbia.
In terms of comparing the 2 approaches, the network technique indicated a lower level of access and was more accurate in identifying populations residing inside and outside the "golden hour" of emergency care.
随着农村紧急医疗系统应对各种集中服务的压力，地理上获得紧急治疗的机会仍然是一个重要的公共政策问题。地理信息系统（GIS）是确定现有或提议的服务分布能充分服务特定人口比例的有效工具。
本研究比较了两种GIS方法，以确定不列颠哥伦比亚省北部是否达到了该省卫生部制定的近期紧急护理可及性标准。特别是，我们将使用更常用的直线法或“直线距离”法得到的结果与使用更复杂的方法得到的结果进行比较，后者利用数字参考道路网络数据估算出行时间。
两种方法均表明，不列颠哥伦比亚省北部未达到省级紧急医疗可及性标准。
就比较这两种方法而言，网络技术显示出较低的可及性水平，并且在识别处于紧急护理“黄金一小时”内和之外的人口方面更为准确。
