Extracts from GP systems capture GP revisions to a patient’s risk status, additions and deductions of patients from the high-risk group submitted by NHS trusts, and strategic data collections. These include data from hospital episodes, maternity health data and medicines data, to determine whether a patient meets one or more of the nationally agreed criteria as set out by the Chief Medical Officer.
The data processed constitutes hundreds of millions of data items.
These national datasets are being used to support direct care during the COVID-19 pandemic. However, some issues with data quality have been noted when identifying and communicating with clinically extremely vulnerable patients through the NHS Shielded Patient List programme.
Residential addresses - When people move home, they do not always update their records with their GP, including when patients may temporarily or permanently move into or out of a care provider or care home.
Email addresses - NHS Digital gathers email addresses held on GP and other health systems. We do not verify the accuracy of patient contact information, which is managed by GPs and hospital departments on behalf of patients.
Telephone numbers - The telephone numbers used for national communications are taken from the contact information held in a patient’s GP record, so it is important to make sure this is up to date.