Institute of Epidemiology & Health Care


News and events

Webinar: Journey to work data in the UK - what data are available?

12 March 2019, online, 15.00 - 16.00 GMT

Jointly organised by CeLSIUS and the UK Data Service, the webinar will explore journey to work data in the UK, focussing on data from the census, in particular the longitudinal studies, including:


UK Census Longitudinal Studies First Annual Conference:  8th - 9th April 2019, Queen's University Belfast

This event is organised by the three UK census longitudinal studies to showcase research and build research capacity amongst existing and prospective users. The first day of the conference will present research findings from across the UK and set the UK experience in a wider context with an international panel. The second day will offer two parallel workshops. One strand will provide 'safe researcher training' to certify attendees to use longitudinal data across the UK. The second will be concerned with the development of research ideas and seeking research funding. Find out more and book your place.


ONS in Pimlico safe setting reminder

Please note that to contact the CeLSIUS team when using LS data in ONS London, you need to phone 020 7592 8632 (8632 internally) or one of the other numbers displayed on the safe setting wall. This is because we are no longer on the Red Route, along which you are permitted to move; we must therefore escort you to our desks. You are encouraged not to let this deter you - we are always pleased to meet LS users face-to-face.


CeLSIUS Research Brief: Windrush migrants in the LS (PDF)

CeLSIUS estimate that in 2011 there were around 1,735 Windrush children who had entered the country prior to 1971 - find out more about how the ONS LS can be used to estimate the number of Windrush migrants in ways which go beyond the methods based solely on the most recent census, or on the Labour Force Survey.


Webinar: Geography and longitudinal data - the UK Household Longitudinal Study and the UK Longitudinal Studies, held on 11th July 2018


Presentations and other materials now available from 'A showcase of student research using the ONS LS and census microdata', held on 28th March 2018


Recent changes to ONS LS output clearance procedures:

LS users may have received several emails from CeLSIUS/the ONS relating to changes to clearance procedures - please note that the following are the only changes that have occurred recently:

  • 'Pre-publication' clearance will replace 'Intermediate Outputs'.
  • 'Publication' clearance will replace 'Final Outputs'.
  • BOTH procedures will require results to be aggregated to the same minimum cell threshold. That is, in results from which a count of individual persons could possibly be calculated - e.g. percentages, or graphs based on percentages - the cell count will be 10 or more.
  • However, both types of clearance may be possible for results which do not meet this criterion if there is a scientific justification, i.e. both a reason why clearance of lower cell counts is needed, and a persuasive argument that in this case they could not lead to disclosure.
  • Publication and Pre-publication clearances will involve two members of staff.
  • LS users working overseas will be dealt with on the same basis as those based in the UK.

Please also note that CeLSIUS support officers will continue to:

  • do pre-publication clearance on log files and other formats
  • run code for users and send out the cleared outputs (subject to the conditions outlined above)
  • alter users' outputs where necessary to make them clearable


Book chapter on the UK LSs

'Longitudinal Studies in the United Kingdom'

by Nicola Shelton and Oliver Duke-Williams of CeLSIUS, Chris Dibben of SLS-DSU & Ian Shuttleworth of NILS-RSU

In 'The Routledge Handbook of Census Resources, Methods and Applications' edited by John Stillwell.

From the publisher's website:

The Routledge Handbook of Census Resources, Methods and Applications provides a comprehensive and authoritative guide to the collection, processing, quality assessment and delivery of the different data products that constitute the results of the population censuses conducted across the United Kingdom in 2011. It provides those interested in using census data with an introduction to the collection, processing and quality assessment of the 2011 Census, together with guidance on the various types of data resources that are available and how they can be accessed.