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 drawn from GP practices via Exeter System.

This dataset provides linkage from anonymous individual to anonymous residences, thus enable to group households of individuals.

A single-view version of WDS (called PER_RESIDENCE_GPREG) provided by Digital Health and Care Wales (DHCW) superseded the previous three-view version WDS in September 2022. SAIL produces cleaned versions of these views. The cleaned versions of the new single-view WDS are called WDSD_CLEAN_AR_PERS and WDSD_CLEAN_GEO_RALF.

Associated Media

https://saildatabank.com/about-us/overview/ , https://popdatasci.swan.ac.uk/centres-of-excellence/sail/ , https://saildatabank.com/