On this page:
There are a range of tools and resources to help you get to know what content is available in the CLS studies.
We are constantly expanding and improving our range of tools to help you explore our data. We are inviting feedback on any of the tools in beta stage below – please get in touch via: clsdata@ucl.ac.uk.
These tools help researchers explore datasets and variables across the CLS cohort studies, and beyond.
CLS online variable search
Visit our interactive website to explore all CLS cohort study variables available via the UK Data Service under all licences. This includes linked and omics data.
This tool is currently in beta stage of development.
CLS survey data dictionaries
Find downloadable Excel data dictionaries of CLS survey variables available in our UKDS safeguarded datasets.
CLS genetics data
Genotyped data and biological samples are available from all of CLS’s adult cohort studies. On this page find:
CLOSER Discovery
Use CLOSER’s online catalogue to explore survey questionnaire metadata from multiple UK longitudinal cohorts.
UKDS data catalogue
Explore datasets and variables deposited at the UK Data Service, including CLS cohort data.
The tools on this website collate sample sizes across CLS’s cohort studies. They are currently in beta stage of development.
CLS cohort studies coverage: variable and category
Explore the number of cases in each CLS cohort study by survey sweep for population subgroups.
CLS cohort studies coverage: age range
This tool enables users to combine data across cohorts, and within a cohort across sweeps, using a specified age range.
These independent Github sites help users in common data management tasks in each of the CLS cohort studies.
Data handling guide
This Github site contains R code for common data handling across CLS’s cohort studies, and guidance on how to use it.
Code repository
This Github site contains code repositories for CLS cohort derived variables, as well as tools to help longitudinal and cross-cohort research. It is regularly updated.
CLS data documentation
Search CLS data documentation, including questionnaires, user guides and technical reports for all of our cohort studies.
Know what you need?
If you know what data you need, find out how to access them. Researchers from anywhere in the world can access cohort data for free from public repositories or CLS directly.
Got an idea for something new?
We welcome proposals for new data linkages and data enhancements. Submit your ideas directly to CLS.
Centre for Longitudinal Studies
UCL Social Research Institute
20 Bedford Way
London WC1H 0AL
Email: clsdata@ucl.ac.uk
CLS survey data dictionaries 
CLS cohort studies coverage: variable and category