This document provides details of the linkage process for each data provider currently providing linked data to UK Biobank, with particular focus on the matching algorithms used to link participants at an individual level between UK Biobank and externally provided datasets.

This resource can be downloaded or viewed using the link: matchalg.pdf

If you have wget available (typically on linux systems), then you can also obtain a copy using the command

 wget  -nd  biobank.ndph.ox.ac.uk/ukb/ukb/docs/matchalg.pdf