User guides
NCDS Age 7 Guide to the Dataset
Guide to the NCDS Age 7 dataset
Date published: 01/05/1965
PDF: 13,94 MB
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Harmonised indicators of self-reported asthma in five British cohort studies User Guide
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: 728,48 KB
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Harmonised indicators of self-reported diabetes in five British cohort studies User Guide
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: 487,42 KB
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Handling mode effects in the CLS cohort studies user guide (Nov 2024)
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
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NCDS Hospital Episode Statistics (HES) User Guide
This guide describes the data linkage of health administrative records from the Hospital Episode Statistics (HES) to survey data for cohort members in the National Child Development Study (NCDS). User guide updated: 2025.
Date published: 01/09/2022
PDF: 387,7 KB
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Bristol Social Adjustment Guide Forms at ages 7 and 11 – User Guide
This document has been prepared to accompany the deposit with the UK Data Service at the University of Essex, of all available completed Bristol Social Adjustment Guide forms collected in sweeps 1 and 2 of the National Child Development Study when cohort members were seven years old in 1965 and eleven years old in 1969.
Date published: 03/03/2022
PDF: 342,11 KB
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NCDS 2006 Re-deposit User Guide
User guide to accompany the redeposit of data up to age 46
Date published: 01/11/2006
PDF: 87,19 KB
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NCDS Age 7-16 Measures of Ability
This document draws together information available on the key measures of ability that were gathered from members of the National Child Development Study (NCDS) during the three surveys carried out during the school years of the birth cohort.
Date published: 01/12/2012
PDF: 355,53 KB
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NCDS Age 7-11 Bristol Social Adjustment Guides
This document draws together information available on the Bristol Social Adjustment Guides (BSAG) – key measures of behaviour that were gathered for members of the National Child Development Study.
Date published: 01/01/2013
PDF: 1,18 MB
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NCDS revised region variables
Date published: 01/03/2012
PDF: 523,56 KB
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Handling missing data in the CLS cohort studies – User Guide
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
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