Table 3 List of XML scopes or XML tags, through which the de-identification algorithm is run

All free text fields

Summary texts, Event notes, Correspondence notes, Ward Progress Notes, etc.

All structured fields that would be populated, in the source system, with strong PIs are completely removed on CRIS

NHS number field, Trust specific ID field, First Name, Middle Name, Last Name, Telephone Number, etc.

All structured fields that would be populated, in the source system, with strong PIs that are also valuable for research, are converted into weak identifiers

Date of Birth, Post Code, Ethnicity, etc.