For participants who were resident in England or Wales, this field contains 2011 Census lower layer super output area of each participant's home address at baseline.
For participants who were resident in Scotland, this field contains 2011 Census Data Zones corresponding to each participant's home address at baseline.
Lower layer super output areas (LSOAs) for England and Wales and Data Zones for Scotland are built from groups of Census Output Areas (typically 5 COAs).
Data zones in Scotland are smaller in population size than LSOAs in England and Wales.
Office for National Statistics, 2011 Census: Digitised Boundary Data (England and Wales) [computer file]. UK Data Service Census Support. Downloaded from: https://borders.ukdataservice.ac.uk/
National Records of Scotland, 2011 Census: Digitised Boundary Data (Scotland) [computer file]. UK Data Service Census Support. https://borders.ukdataservice.ac.uk/
The information is licensed under the terms of the Open Government Licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3 If you are using these data in your analyses please ensure you abide by the licence terms.