All material in UK LLC Guidebook is available under a CC BY-NC-SA 4.0 International licence: https://creativecommons.org/licenses/by-nc-sa/4.0/

You can cite UK LLC Guidebook using the following text:

UK Longitudinal Linkage Collaboration. (2024). UK LLC Guidebook: data documentation and user guide. Zenodo. https://doi.org/10.5281/zenodo.14857713

You can also share the human-readable URL to a page in Guidebook, but be aware that Guidebook is updated frequently and these links may change over time.

UK LLC hosts a user group which meets online monthly. All active TRE users are invited to attend this meeting where updates are shared and issues facing users can be discussed.

Yes – in February 2025, UK LLC’s protocol was published in the International Journal of Population Data Science: https://ijpds.org/article/view/2468/6167.

No – UK LLC has not yet published a data resource profile paper. We are waiting for the Scottish and Welsh NHS data and the non-health adminstrative data to flow into the TRE so we can characterise the resource more fully. In the meantime, you can either cite: (i) the specific freeze that underpins the datasets you were provisioned - see UK LLC sample; or (ii) the Summary Profile of the UK LLC Resource that describes freeze 1: Berman S, Evans K, Thomas R, Crane M, McLachlan S, Whitehorn R, Oakley J, Flaig R, Turner E, Boyd A. Summary Profile of the UK Longitudinal Linkage Collaboration (UK LLC) Resource. Bristol, UK: UK LLC. Available from: https://zenodo.org/records/10890836