Institute of Epidemiology & Health Care



We enable research using the Office for National Statistics (ONS) Longitudinal Study - the largest nationally representative longitudinal dataset in the UK

Longitudinal studies follow the lives of individuals over a long period of time, showing us how people are affected by changes in society. The ONS Longitudinal Study contains the census data and some life events data of approximately one million sample members, collected over 40 years. This service is free to the user.

About the ONS Longitudinal Study

About the ONS Longitudinal Study

Find out more about the study

About the ONS Longitudinal Study

Using the ONS Longitudinal Study

Find out how to access and use the data

Data dictionary

Data dictionary

Look up the variables in the study

Celsius Resources


Information and guidance to help you use the data

Research at Celsius


Current and past LS projects and the outputs resulting from this research

About Celsius


Meet the team

Wordpress dashboard

Linking our Lives Blog

Our blog showcases outstanding research using the LS 


Linking our Lives Podcast

In conversation with researchers and users of LS research


Research and policy briefs

Policy and research briefing notes on research using the LS



What will the Census tell us about COVID-19?

CeLSIUS launches its new blog this week with an article from PI Nicola Shelton on what the Census 2021 will tell us about the COVID-19 pandemic.

Linking our Lives is a sister blog to CeLSIUS' new podcast of the same name. 


CeLSIUS launches Linking our Lives Podcast

A new podcast showcasing research that uses the ONS Longitudinal Study (ONS LS) to look at some of the major social issues of the last 50 years launches this week. Linking our Lives: England and Wales since 1971 is produced and presented by former BBC journalist Chris Garrington on behalf of CeLSIUS. 

In conversations of 20-25 minutes, researchers discuss how they are making use of the data, what they have found and what it means for policy, practice and society. Pthe podcast shows the impact of the ONS Longitudinal Study and provides insights into how others might tap into this fantastic resource.

In Episode 1 Chris discusses a new Index created by the CeLSIUS team to see how frunds from the Government's Stronger Towns Fund might have been allocated differentl and possibly more fairly.


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