Data partners

Great Ormond Street Hospital NHS Foundation Trust

Great Ormond Street Hospital NHS Foundation Trust is a specialist tertiary care paediatric hospital in the UK that receives children with complex and/or rare conditions. Many patients require long-term care and follow-up, resulting in highly detailed clinical data. The database includes over 200,000 patients with inpatient or outpatient encounters between April 2019 and February 2025.

Leeds Teaching Hospitals NHS Trust

Leeds Teaching Hospitals NHS Trust contributes data on approximately 1.5 million patients with diagnoses or admissions since 2003. The dataset receives data from multiple hospital systems and includes detailed information related to cancer care, including diagnosis, treatment, staging, biomarkers, and clinical trial participation.

Lancashire Teaching Hospitals

Lancashire Teaching Hospitals data set provides hospital-based data from the Northwest of England, covering approximately 1.5 million patients. The dataset includes a wide range of clinical information, such as outpatient clinic attendances, laboratory test results (including blood tests and microbiology), and detailed cancer pathway data, including staging and grading.

University College London Hospitals NHS Trust

University College London Hospitals NHS Trust is one of the largest NHS trusts in the UK, providing first-class acute and specialist services across six hospitals in central London. It contributes a dataset of 6 million patients. Its patient population includes national referrals for tertiary and quaternary services (cancer, neurology etc.) and general medical admissions from an inner-city teaching hospital that treats >1 million outpatients per year and has >100,000 inpatient admissions.

Barts Health NHS Trust

Barts Health NHS Trust is the largest NHS hospital group in the UK. It contributes a dataset of approximately 3 million patients from across its six hospitals in East London: The Royal London Hospital, Newham General Hospital, Whipps Cross Hospital, Mile End Hospital, St Bartholomew’s Hospital and the London NHS Nightingale Hospital, a purpose-built COVID-19 hospital. The dataset spans from 2012, with comprehensive and consistent records available from 2015/2016 onwards

DataLoch

DataLoch’s OMOP mapped data is extracted from secondary care EHR databases from NHS Lothian, covering a population of approximately 1.4 million in South-East Scotland. It focuses on oncology and contains longitudinal data capturing the full cancer care pathways, including diagnosis, treatment and follow-up. The database includes information from the cancer registry, inpatient admissions, outpatient visits, and community prescribing records. All NHS Lothian patients present in these databases were included for this work.