| Dates | November 1999 – September 2000 |
|---|---|
| Age | 29-30 |
| Achieved sample | 11,261 (cohort members) |
| Respondents | Cohort members |
| Fieldwork agency | NatCen Social Research |
| Survey mode | Face to face |
| Data access | |
| Description |
The purpose of the BCS70 activity histories dataset is the merge of all data on work and non-work activities, in the successive sweeps, into one longitudinal dataset. For the fifth edition (January 2026), the data has been updated to include reported activities from sweep 11 (2021, Age 51) with employment histories up to sweep interview date between 2021 and 2024.
Authors: Andrew Peters
Date published: 14/01/2026
PDF: 268,55 KB
The purpose of the Partnership Histories dataset is to merge all data on live-in relationships in successive sweeps into one longitudinal dataset. For the fifth edition (January 2026), the data has been updated to include partner data collected at sweep 11 (2021, Age 51) and includes partner information up to the date of interview between 2021 and 2024.
Authors: Andrew Peters
Date published: 14/01/2026
PDF: 269,6 KB
This user guide documents the harmonised indicators of all self-reported measures related to asthma in five British cohort studies: the MRC National Survey of Health and Development (NSHD), the 1958 National Child Development Study (NCDS), the 1970 British Cohort Study (BCS), Next Steps, and the Millennium Cohort Study.
Date published: 18/07/2025
PDF: 531,79 KB
This user guide documents the harmonised indicators of all self-reported measures related to diabetes in five British cohort studies: the MRC National Survey of Health and Development (NSHD), the 1958 National Child Development Study (NCDS), the 1970 British Cohort Study (BCS), Next Steps, and the Millennium Cohort Study.
Date published: 18/07/2025
PDF: 486,86 KB
This user guide accompanies the deposit of datasets on the Cohort Members (CM) fertility histories in four UK cohort studies: MRC National Survey of Health and Development (NSHD), the 1958 National Child Development Study (NCDS), the 1970 British Cohort Study (BCS), and Next Steps.
Date published: 18/07/2025
PDF: 455,26 KB
A user guide which provides guidance and recommendations for handling mode effects in CLS’ cohort studies through applied examples, using data from the National Child Development Study (NCDS) and Next Steps.
Date published: 26/11/2024
PDF: 2,3 MB
This guide describes the data linkage of health administrative records from the Hospital Episode Statistics (HES) to survey data for cohort members in the 1970 British Cohort Study (BCS70). User guide updated: 2025.
Date published: 08/02/2021
PDF: 203,76 KB
This user guide aims to describe and illustrate a straightforward approach to missing data handling, while detailing some more general considerations around missing data along the way.
Date published: 03/06/2024
PDF: 1000,62 KB
Technical report on the NCDS age 42 and BCS70 Age 30 sweeps.
Date published: 01/09/2001
PDF: 1,21 MB
Appendices for the technical report on the NCDS age 42 and BCS70 Age 30 sweeps.
Date published: 01/09/2001
PDF: 2,24 MB
Assessment of combined pregnancy histories of BCS and NCDS when both surveys were conducted between 1999/2000
Date published: 01/12/2002
PDF: 436,93 KB
Assessment of combined household grid variables of BCS and NCDS when both surveys were conducted between 1999/2000
Date published: 01/12/2002
PDF: 592,55 KB
This Data Note explains the derivation of variables on Highest Educational Qualification obtained by cohort members in the National Child Development Study (NCDS) and the 1970 British Cohort Study (BCS70).
Date published: 01/01/2011
PDF: 514,11 KB
This User Guide accompanies the deposits at the UK Data Archive of derived variables for each sweep of BCS70. These derived variable datasets are found under the study number for each of the sweeps and include variables for country of interview, region and government office regions.
Date published: 01/02/2014
PDF: 307,78 KB
Review of Ethical procedures used for each Sweep of BCS70.
Date published: 01/01/2019
PDF: 4,18 MB
A 2013 research paper by two academics at the Centre for Longitudinal Studies on the beneficial effects of reading for pleasure in childhood has attracted a remarkable amount of interest from schools, libraries and literacy organisations around the world.
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Generation X suffers poorer mental health in mid-life than the Baby Boomers before them, according to new research from the UCL Institute of Education (IOE).
This research project uses evidence from all four of our cohort studies to investigate the short- and long-term health impacts of alcohol.
Centre for Longitudinal Studies
UCL Social Research Institute
20 Bedford Way
London WC1H 0AL
Email: clsdata@ucl.ac.uk
