Where to find the information you need

Where to find the information you need#

Last modified: 15 Jul 2025

Where best to find information about UK LLC, depending on whether you are, for example, a researcher or a participant in a Longitudinal Population Study (LPS).

UK LLC Guidebook is aimed primarily at researchers to help them understand the data available and how to work in the UK LLC Trusted Research Environment (TRE).

Have a look at the table below for suggested places to find information, depending on whether you’re a researcher, LPS data manager, LPS participant or other member of the public.

If there are any aspects to our documentation that you feel could be better explained or would benefit from more detail, please email the UK LLC Data Team support@ukllc.ac.uk. We very much welcome feedback.

Table 1 Suggested places to look for information about UK LLC depending on your interests

User group	Suggested journey
Researchers interested in applying to UK LLC	1. UK LLC Guidebook – take a look at UK LLC key facts to understand if UK LLC is the resource best suited to your research; check Can I apply? to make sure you and your project are eligible; see contributing LPS and their permitted linkages to understand the breadth of data available; look at the TRE user guide to understand what it’s like working in the TRE. 2. UK LLC website – look at the Data Use Register to see current and previously approved projects. 3. UK LLC Explore – browse our metadata catalogue and start to build a data request. 4. UK LLC Apply – submit your expression of interest via UK LLC’s online application management system.
Researchers working on an approved project	1. UK LLC Guidebook – go to UK LLC sample to understand the sample that underpins the datasets at the point in time you were granted access to them; look through the TRE user guide to understand all aspects of working in the TRE; read the individual dataset guides to learn more about the datasets; browse the FAQs to help you troubleshoot. 2. UK LLC Apply – submit an amendment to your project, e.g. to apply for an extension to your time in the TRE.
LPS data managers	1. UK LLC Guidebook – take a look at contributing LPS, your individual LPS page and dataset pages; see permitted linkages to understand which datasets your participants are linked to; go to UK LLC sample to see how many of your participants are included in UK LLC, how many have successfully linked and how this has changed over time. 2. UK LLC Explore – browse our metadata catalogue. 3. UK LLC Apply – if you would like to access your LPS’ linked records, submit your expression of interest via UK LLC’s online application management system.
LPS participants and members of the public	1. UK LLC website – read lots of general information about UK LLC, including a list of LPS that contribute data; our privacy notice; our values; and our Data Use Register that shows the kind of research projects approved by UK LLC. 2. UK LLC Explore – browse our metadata catalogue to discover the full breadth of data available in the TRE.