UK Data Service data catalogue record for:

Office for National Statistics Longitudinal Study, 1971-

Title details

SN: 5762
Title: Office for National Statistics Longitudinal Study, 1971-
Depositor: Office for National Statistics. Census Division
Principal investigator(s): Office for National Statistics. Census Division


The citation for this study is:

Office for National Statistics. Census Division. (2008). Office for National Statistics Longitudinal Study, 1971-. [data collection]. UK Data Service. SN: 5762

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Subject Categories

Population censuses - Population, vital statistics and censuses


Abstract copyright UK Data Service and data collection copyright owner.

This is a dataset comprising linked event records for 1% of the population of England and Wales (about 500,000 people at any one census). It was set up in 1974 to address problems with the adequacy of occupational mortality data, and the lack of longitudinal fertility data, but since then it has been used to address a wide range of other research questions.

Main Topics:
Topics cover:
  • all information from census returns since 1971, including data on occupation, economic activity, housing, ethnicity, age, sex, marital status and education
  • event data on births and deaths, fertility, mortality, morbidity, migration and cancer registrations
  • ecological data: population density, urban/rural indicator and deprivation indicator

Coverage, universe, methodology

Time period: From 26 April 1971 (ongoing)
Country: England and Wales
Spatial units: Postcode (Unit)
Observation units: Individuals
Kind of data: Alpha/numeric data
Individual (micro) level
Universe: National
Includes everyone who has one of four birthdays, thus forming an approximately 1% sample of the population of England and Wales.
Time dimensions: Longitudinal/panel/cohort
Sampling procedures: The sample is selected using four dates of birth occurring in any year
Number of units: 950,000
Method of data collection: Self-completion
Weighting: No weighting used
Data sources: Based on 1971, 1981, 1991 and 2001 census records. The individual records also contain data for events such as deaths, births to sample mothers, emigrations and cancer registrations.

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Administrative and access information

Date of release:
First edition: 21 January 2008
Copyright: Crown copyright material is reproduced with the permission of the Controller of HMSO and the Queen's Printer for Scotland
Access conditions: The depositor has specified that external registration is required. See availability section for details.
Availability: These data are available via the Centre for Longitudinal Study Information and User Support (Census) (CeLSIUS) (for users in UK higher and further education institutions) or Office for National Statistics (ONS) (for others).
Contact: Get in touch


Title File Name Size (KB)
Study information and citation UKDA_Study_5762_Information.htm 6
Documentation link information 5762information.doc 28
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