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Welcome to UK LLC
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Freeze 15 | Feb 2026
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Freeze 1 | Aug 2022
UK LLC database design
Data security
Five Safes Framework
LPS data
FAQs about LPS data
LPS characteristics
Permitted linkages
Temporal coverage
Discover LPS data
AIRWAVE
Datasets
ALSPAC
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BCS70
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BIB
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ELSA
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EPICN
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EXCEED
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FENLAND
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GENSCOT
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GLAD
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MCS
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NCDS58
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NEXTSTEP
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NICOLA
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NIHRBIO_COPING
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NSHD46
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SABRE
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TEDS
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TRACKC19
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TWINSUK
Datasets
UKHLS
Datasets
NHS data
NHS England
FAQs about NHSE data
Restrictions to use
Temporal coverage
Processing & linkage
Coded variables
FAQs about coding
Codelists
Primary care datasets
GDPPR
PCM
Hospital datasets
FAQs about HES datasets
HESOP (outpatient)
HESAPC (inpatient)
HESAPC_MAT (inpatient maternity)
HESAPC_ACP (inpatient critical care)
HESCC (inpatient critical care)
ECDS (emergency)
HESAE (emergency)
COVID-19 datasets
FAQs about COVID-19 datasets
COVIDSGSS (testing)
IELISA (testing)
NPEX (testing)
CHESS (hospitalisation)
CVS (vaccination)
CVAR (vaccination)
Registration datasets
CANCER
DEMOGRAPHICS
MORTALITY
Mental health datasets
FAQs about MH datasets
MHSDS (general)
IAPT (talking therapies)
Community datasets
CSDS (general)
NHS Wales
Processing & linkage
Coded variables
Hospital datasets
COVID-19 datasets
Registration datasets
Primary care dataset
Other datasets
NHS Scotland
Northern Ireland
Place-based data
FAQs about place-based data
Processing & linkage
Population datasets
Index of Multiple Deprivation (IMD)
Townsend Deprivation Index (2011)
Environmental datasets
Neighbourhood datasets
Access to Healthy Assets and Hazards (AHAH)
Greenspace
Property datasets
Energy Performance Certificates (EPC)
Pollution datasets
Air pollution NO2 & PM
Air pollution NOx, NO2 and O3
Noise pollution
Mobility datasets
Health datasets
Administrative data
FAQs about admin data
HM Revenue & Customs
Department for Work & Pensions
UK LLC-managed data
FAQs about UK LLC-managed data
Harmonised sociodemographic datasets
Demographic (full)
Demographic (reduced)
Highest educational qualification
DATAMIND collection
UK Biobank collection
NHS England reference datasets
Study permissions
NHSE patient service usage
NHSE patient demo mortality
NHSE lsoa11 dataset mappings
Charlson comorbidity dataset
TRE user guide
FAQs about the TRE
Logging in
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Available software
Using Git
Moving files in and out
Statistical Disclosure Control
Quiz on Statistical Disclosure Control
Requesting an amendment
Finishing your project
Publishing your research
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Focus on harmonisation
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