Millennium Cohort Study (MCS)#
Last modified: 28 Jul 2025
1. Summary#
The Millennium Cohort Study (MCS) is a national longitudinal birth cohort study following the lives of around 19,000 young people born in the United Kingdom in 2000-2002. This multidisciplinary survey aims to capture the influence of early family context on child development and outcomes. Children from minority ethnic backgrounds and children in Scotland, Wales & Northern Ireland are oversampled to help capture the diversity of backgrounds into which children are born in the beginning of the 21st century.
| Series Descriptor | Series-specific Information |
|---|---|
| Citation (APA) | University College London, UCL Social Research Institute, Centre for Longitudinal Studies. (2021). Millennium Cohort Study (MCS). UK Longitudinal Linkage Collaboration (UK LLC). https://doi.org/10.71760/ukllc-series-00011 |
| Download Citation | Citeproc JSON BibTeX RIS |
| Owner | UCL |
| Cohort | 18,818 children 18,552 families |
| Age at Recruitment | Birth |
| Geographical Coverage - Nations | England, Scotland, Wales, Northern Ireland |
| Geographical Coverage - Regions | Nationwide |
| Start Date | 2000 |
| Permitted Linkages | See here |
| Inclusion in Linkages | Consent |
| Cohort Profile | 10.1093/ije/dyu001 |
| LPS Homepage | |
| Build a Data Request | https://explore.ukllc.ac.uk/ |
2. Linkage Rates#
3. Documentation#
We are currently building a documentation storage system which will host useful documents related to datasets and data owners. We will surface these documents on Guidebook.