Welsh Demographic Service (WDS)
Data Providing Organisation:
NHS Wales’ Informatics Service (NWIS)
Data Providing Type:
Administrative (mandatory) data return
Other – can be used for all themes
Administrative information about individuals in Wales that use NHS services; such as address and practice registration history. It replaced the NHS Wales Administrative Register (NHSAR) in 2009.
Data Collection Method
Data drawn from GP practices via Exeter System.
This dataset provides linkage from anonymous individual to anonymous residences, thus enable to group households of individuals.
As a core SAIL dataset available in accordance with our standard Information Governance procedure.
See the WDS website for more information.
All Wales population – approx. 3 million
1990 – Present