Output Area (2011) to PCO (2011) to SHA and LHB (December 2011) Best Fit Lookup in EW

<span style='font-size: 17px; font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif !important;'>A best-fit lookup between Output Areas (OA), strategic health authorities (SHA) and primary care organisations (PCO) in England and local health boards (LHB) in Wales as at 31 December 2011. </span><div style='font-size: 17px; font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif !important;'><br /></div><div style='font-size: 17px; font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif !important;'>The methodology used to create the OA lookups is based on the distribution of 2011 Census population. A median average of each OA's household grid references, weighted by the population at each household has been used to create a population weighted centroid for each OA. This centroid has been used to allocate the OA and all its associated statistics to any higher geographies. Information on the percentage of an OAs population that falls into the higher geography has also been included in this best-fit lookup file. A ‘best-fit percentage’ indicator has been included in this lookup, to support an understanding of the actual relationship between the OA and the higher geography to which it has been best-fitted. This ‘best-fit percentage' indicator has been calculated by working out the percentage of the OA population that falls exactly within the output geography's boundary. This is calculated by plotting the grid references of the households into the output geography's digitised boundaries and aggregating the population that actually falls within the best-fitted geography's boundary. 100 indicates that all the OA population actually fell within the best-fitted boundary. A value of 90 means that the OA boundary is split across the output geography's boundary and that 90% of the OA population actually fell within the geography the OA was best-fitted to. Only the higher geography to which the OA has been allocated will be given a percentage match. (File Size 12.3MB).</div><div style='font-size: 17px; font-family: &quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif !important;'><p style='margin-bottom:0cm;margin-bottom:.0001pt;line-height: normal'><span style='font-size: 11.5pt; font-family: Helvetica, sans-serif;'>Field Names – OA11CD, PCO11CD, PCD11NM, PCO11NMW, OA11PERCENT, SHA11CD, SHA11NM, OA11PERCENT1</span></p> <p style='margin-bottom:0cm;margin-bottom:.0001pt;line-height: normal'><span style='font-size: 11.5pt; font-family: Helvetica, sans-serif;'>Field Types – Text, Text, Text, Text, </span><span style='font-family: Helvetica, sans-serif; font-size: 15.3333px;'>Text, Text, Text, Text</span></p> <p style='margin-bottom:0cm;margin-bottom:.0001pt;line-height: normal'><span style='font-size: 11.5pt; font-family: Helvetica, sans-serif;'>Field Lengths – 9, 9, 37, 37, 3, 9, 24, 3</span></p></div><div><br /></div><div><div></div></div><div><br /></div><div><div>REST URL of Feature Access Service – <a href='https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/OA11_PCO11_SHA11_EW_LU_5486e0c3ce704335ba9ce14a025afc9b/FeatureServer' target='_blank' rel='nofollow ugc noopener noreferrer'>https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/OA11_PCO11_SHA11_EW_LU_5486e0c3ce704335ba9ce14a025afc9b/FeatureServer</a></div></div>本数据集为2011年12月31日时点下，英格兰的产出区域（Output Areas，OA）、战略卫生局（Strategic Health Authorities，SHA）与初级保健机构（Primary Care Organisations，PCO），以及威尔士地方卫生委员会（Local Health Boards，LHB）之间的最优匹配对照表。 本OA匹配表的构建方法基于2011年英国人口普查的人口分布数据。以各住户的人口数为权重，对每个产出区域的住户网格坐标取中位数平均值，以此生成每个产出区域的人口加权质心。通过该质心，可将对应产出区域及其全部关联统计数据分配至高阶地理单元。本最优匹配对照表还包含了归属至该高阶地理单元的产出区域人口占比信息。 本对照表增设了“最优匹配占比”指标，用于辅助理解产出区域与其所匹配的高阶地理单元间的实际对应关系。该指标通过计算恰好落在该高阶地理单元数字化边界内的产出区域人口占比得出：具体操作为将各住户的网格坐标映射至该高阶地理单元的数字化边界中，汇总实际落入匹配地理单元边界内的人口总量。若指标值为100，则代表该产出区域的全部人口均落在匹配边界内；若指标值为90，则代表该产出区域边界跨越了该高阶地理单元的边界，且该产出区域90%的人口实际落入了本次匹配的地理单元。仅产出区域所匹配的高阶地理单元会被赋予匹配占比数值。本数据集文件大小为12.3MB。 字段名称：OA11CD、PCO11CD、PCD11NM、PCO11NMW、OA11PERCENT、SHA11CD、SHA11NM、OA11PERCENT1 字段类型：文本、文本、文本、文本、文本、文本、文本、文本 字段长度：9、9、37、37、3、9、24、3 REST要素访问服务链接：https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/OA11_PCO11_SHA11_EW_LU_5486e0c3ce704335ba9ce14a025afc9b/FeatureServer