The initial approach to the equalities data audit was to catalogue publications, datasets and sources relating to the nine protected characteristics. Following feedback the audit changed to capture the raw data sources. Over time additional fields have been added to capture content such as the extent to which each data source included characteristics on socio-economic group and people at higher risk of harm, abuse, discrimination or disadvantage. More recent updates have included information on data sources that cover children and free school meals. An additional field was added in October 2023 indicating data sources that capture data on Non-Household populations, this refers to individuals residing in communal establishments. It is important to note that the audit is a snapshot of the state of the evidence as we knew of it at the time of publication. The approach taken to populate the fields has involved both a search of the publicly available metadata and making direct contact with data producers. Due to the volume of data sources captured and its complexity work on the audit is ongoing and there are gaps to fill. The audit will continue to evolve over time as new data sources are added and existing data sources are updated. We are relying on users to let us know if there are sources of data that are not currently captured or any amendments needed to the existing information. The aim is for the audit to be a resource for researchers, we welcome feedback on its content and format to ensure that it is valuable and relevant. Please contact us at: equalites@ons.gov.uk