UK Data Service data catalogue record for:

Millennium Cohort Study, 2001-2003: Hospital of Birth: Special Licence Access

Title details

SN: 5724
Title: Millennium Cohort Study, 2001-2003: Hospital of Birth: Special Licence Access
Alternative title: MCS
Persistent identifier: 10.5255/UKDA-SN-5724-2
Series: Millennium Cohort Study [Millennium Cohort Study: Special Licence Access]
Depositor: University of London. Institute of Education. Centre for Longitudinal Studies
Principal investigator(s): University of London. Institute of Education. Centre for Longitudinal Studies
Sponsor(s): University of London. Institute of Education. Centre for Longitudinal Studies
Other acknowledgements: Chintamanee Sanmukhiya undertook the bulk of the coding work.

The Department for Work and Pensions (DWP) Analytic and Services Branch Information Centre at Newcastle, who: identified the main Millennium Cohort Study (MCS) sample from Child Benefit records, and ran an opt-out exercise for MCS1; provided a similar service to enable the inclusion in MCS2 of 'new families' (eligible for inclusion in MCS1 but not identfied in the records until after the completion of the first survey); and assisted with tracing families who had moved, for both MCS1 and MCS2.

Members of the Office for National Statistics (ONS) funding consortium provided advice as well as funding.

Individual academic advisers:
Specialist advisers: Julia Brannen, Tim Cole, Leon Feinstein, Charlie Owen.
Members of the Centre for Longitudinal Studies (CLS) internal team: Neville Butler, John Bynner, Elsa Ferri, Ian Plewis, Peter Shepherd and Kate Smith.

Collaborators on the MCS included: Mel Bartley, Helen Bedford, Dermot Bowler, Leslie Davidson, Carol Dezateux, Harvey Goldstein, Kath Kiernan, Yvonne Kelly, Michael Marmot, Barbara Maughan, Alison McFarlane, Catherine Peckham, Chris Power, Ingrid Schoon and Marjorie Smith.

Members of the Millennium Cohort Study Advisory Group, for advice on the form and content of MCS1, MCS2 and MCS3.


The citation for this study is:

University of London. Institute of Education. Centre for Longitudinal Studies. (2013). Millennium Cohort Study, 2001-2003: Hospital of Birth: Special Licence Access. [data collection]. 3rd Edition. UK Data Service. SN: 5724,

Select the text above to add data citation in your outputs.

Select citation format: 
XML citation formats:  CSL  EndNote

Subject Categories

Child development and child rearing - Social stratification and groupings
Childbearing, family planning and abortion - Health
Family life and marriage - Social stratification and groupings
Health services and medical care - Health


Abstract copyright UK Data Service and data collection copyright owner.

The original objectives of the first MCS survey, as laid down in the proposal to the Economic and Social Research Council (ESRC) in March 2000, were:
  • to chart the initial conditions of social, economic and health advantages and disadvantages facing children born at the start of the 21st century, capturing information that the research community of the future will require
  • to provide a basis for comparing patterns of development with the preceding cohorts (the National Child Development Study, held at the UK Data Archive under GN 33004, and the 1970 Birth Cohort Study, held under GN 33229)
  • to collect information on previously neglected topics, such as fathers' involvement in children's care and development
  • to focus on parents as the most immediate elements of the children's 'background', charting their experience as mothers and fathers of newborn babies in the year 2000, recording how they (and any other children in the family) adapted to the newcomer, and what their aspirations for her/his future may be
  • to emphasise intergenerational links including those back to the parents' own childhood
  • to investigate the wider social ecology of the family, including social networks, civic engagement and community facilities and services, splicing in geo-coded data when available
Additional objectives subsequently included for MCS were:
  • to provide control cases for the national evaluation of Sure Start (a government programme intended to alleviate child poverty and social exclusion)
  • to provide samples of adequate size to analyse and compare the smaller countries of the United Kingdom
The first sweep (MCS1) interviewed both mothers and (where resident) fathers (or father-figures) of infants included in the sample when the babies were nine months old, and the second sweep (MCS2) was carried out with the same respondents when the children were three years of age. The third sweep, MCS3, was conducted in 2006, when the children were five years of age. A fourth sweep, MCS4, will be conducted in 2008.

Some studies based on sub-samples of MCS have also been conducted, including a study of MCS respondent mothers who had received assisted fertility treatment, conducted in 2003 (see SN 5559). Also, birth registration and maternity hospital episodes for the MCS respondents are held as a separate dataset (see SN 5614).

Further information about the MCS can be found on the CLS website.

How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:
A useful overview of the governance routes for applying for genetic and bio-medical sample data, which are not available through the UK Data Service, can be found at Governance of data and sample access on the METADAC (Managing Ethico-social, Technical and Administrative issues in Data Access) website.

The Hospital of Birth: Special Licence Access data cover uncoded hospital of birth for MCS respondents. These data have more restrictive access conditions than those available under the standard End User Licence (see 'Access' section below). Coded hospital of birth data, subject to standard access conditions, are available as part of SN 5614, and users are strongly advised to use those instead. Those users who do wish to make an application for the Special Licence Access data should contact the HelpDesk for further details.

For the third edition (August 2013), updated data and a new version of the Hospital Coding Guide document were deposited. Some additional and amended coding has been carried out; see documentation for details.

Main Topics:
The data cover maternity hospital episode, country, National Health Service (NHS) Trust, and hospital of birth for MCS respondents.

Coverage, universe, methodology

Dates of fieldwork: January 2001 - January 2003
Country: United Kingdom
Spatial units: No spatial unit
Observation units: Individuals
Kind of data: Numeric data
Alpha/numeric data
Individual (micro) level
Universe: National
The sample population for MCS was drawn from all live births in the UK over 12 months from 1 September 2000 in England and Wales, and for 59 weeks from 22 November 2000 in Scotland and Northern Ireland. This sub-sample was drawn from those responding to MCS1 who had reported successful infertility treatment.
The sample population for MCS was drawn from all live births in the United Kingdom over 12 months (from 1 September 2000 in England and Wales and for 59 weeks from 22 November 2000 in Scotland and Northern Ireland).
Time dimensions: Longitudinal/panel/cohort
Four waves have been conducted to date: MCS1 (age 9 months), MCS2 (age 3 years), MCS3 (age 5 years) and MCS4 (age 7 years).
Sampling procedures: Purposive selection/case studies
Number of units: 19,244 cases
Method of data collection: Compilation or synthesis of existing material
Weighting: See main MCS documentation for details of weighting.

Thesaurus search on keywords

Administrative and access information

Date of release:
First edition: 09 October 2007
Latest edition: 08 August 2013 (3rd Edition)
Copyright: Copyright University of London. Centre for Longitudinal Studies
Access conditions: The depositor has specified that registration is required and standard conditions of use apply. The depositor may be informed about usage.
Additional special conditions of use also apply. See terms and conditions for further information. In addition, the UK Data Service is required to request permission from the depositor prior to supplying the data.

Please note:
Since these data pose a higher risk of disclosure than data made available under the standard End User Licence they have additional special conditions attached to them that take the form of a Special Licence (SL). The SL requires the completion of an additional application form, agreement to the conditions of the SL, the signature(s) of the researcher(s), and the explicit permission of the data owners to release the data to the researcher(s). This is to ensure that the guarantee of confidentiality given to survey respondents is protected. SL applications are screened by the UK Data Archive and the data owners and data are only released to those researchers requiring data for statistical research purposes and who can justify their need for the SL data.

Researchers are required to keep the data under conditions of greater security than required under the standard End User Licence. The Microdata Handling and Security: Guide to Good Practice explains how to meet these conditions.
Availability: UK Data Service
Contact: Get in touch


Title File Name Size (KB)
UK Data Archive Data Dictionary 5724_mcs_hospitalofbirth_protect_ukda_data_dictionary.pdf 20
CLS Confidentiality and Data Security Review cls_confidentiality_and_data_security_review.pdf 40
MCS Hospital of Birth Coding Guide mcs_hospital_of_birth_coding_guide.pdf 282
Study information and citation UKDA_Study_5724_Information.htm 6
READ File read5724.htm 11
View related studies and guides... Hide related studies and guides...


View publications... Hide publications...

By principal investigator(s):
Publications based on MCS may be found on the Publications page of the Centre for Longitudinal Studies website.

Resulting from secondary analysis:
Waldfogel, J. (2004) Social mobility, life chances and the early years, CASEpaper 88, Centre for Analysis of Social Exclusion, London School of Economics.

McKay, S. (2004) 'Charting change in the devolved administrations: assessing the evidence base', Benefits, 12, pp.183-191.

Rowlingson, K. and McKay, S. (2005) 'Lone motherhood and socio-economic disadvantage: insights from quantitative and qualitative evidence', Sociological Review, 53(1), pp. 30-49.

Kiernan, K. (2005) Non-residential fatherhood and child involvement: evidence from the Millennium Cohort Study, CASEpaper 100, STICERD, Centre for Analysis of Social Exclusion, London School of Economics.

Pickett, K.E., Shaw, R.J., Atkin, K., Kiernan, K.E. and Wilkinson, R.G. (2009 'Ethnic density effects on maternal and infant health in the Millennium Cohort Study', Social Science and Medicine, 69(10), pp.1476-1483.

Tunstall, H., Pickett K., and Johnsen, S. (2010) 'Residential mobility in the UK during pregnancy and infancy: are pregnant women, new mothers and infants 'unhealthy migrants'?' Social Science and Medicine, 71, pp.786-98.

Taulbut, M. and Walsh, D. (2013) Poverty, parenting and poor health: comparing early years' experiences in Scotland, England and three city regions, Glasgow Centre for Population Health, February. Retrieved August 2, 2013 from


No previously uploaded files

  (login required)

Upload syntax/code file

Millennium Cohort Study, 2001-2003: Hospital of Birth: Special Licence Access

I agree to the terms and conditions *

Confirm new syntax/code file version

A previous version of syntax file "" has already been uploaded and approved.

If you continue with this upload, the previous version of the syntax file will be overwritten with this new version.

This new version of the syntax file will be subject to the UK Data Service approval process before it becomes available for download.

Do you want to continue?


Back to top