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

News and events

7-Up, Social Mobility and University

8 November 2019, 6 – 9 pm

Cumberland Hall, Ullswater Community College, Wetheriggs Lane, Penrith CA11 8NG

The 'Up' series, which has followed 14 people since 1964 when they were 7 years old, was shown on ITV in June. CeLSIUS has used 40 years of census information to see how fairly the series represents society - could the participants' pathways have been predicted back in 1964?

Join us to:

  • Find out more about what the group of 14 were like when they were 7 years old back in 1964.
  • Learn more about Neil, one of the group, who is now a local councillor in Penrith and completed an Open University degree in his 40s.
  • Judge for yourself whether social mobility in the UK is increasing or decreasing.
  • Learn about schemes and event that universities hold so that you can experience what university life might be like.

The event is free and open to all year 11 and sixth form students, and their parents and teachers.


Secure data training at ONS: future dates

  • Tuesday 19 November 2019, ONS Titchfield
  • Friday 13 December, ONS Pimlico
  • ONS office locations

To attend, contact research.support@ons.gov.uk.


Save the date: 

The UK Census Longitudinal Studies (UKCenLS) 2020 Conference

20 April 2020, Cardiff Castle


More news and events