Why Define Areas by Enumeration Districts?
Enumeration Districts are becoming the standard unit for boundary definition within the NHS and Local Authorities. Defining areas by Postcode was considered but found to be unworkable because they represent a very small area which becomes unmaneagable to map. The use of Enumeration District as the ‘building block’ for patient/geographic data will enable relatively easy interchange of information with other bodies such as the Census Office and Local Authorities.
