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London Secure Data Environment (SDE)

Population Size

465,707

People

Population Size statistic card

Years

2021

Years statistic card

Associated BioSamples

None/not available

Associated BioSamples statistic card

Geographic coverage

United Kingdom

England

...see more

Geographic coverage statistic card

Lead time

1-2 months

Lead time statistic card

Summary

Keywords

Observations

Observed Node

Disambiguating Description

Measured Value

Measured Property

Observation Date

Events

NHS National Codes

115563

Count

14 Sep 2021

Events

Patient Pathways

697044

Count

20 Oct 2022

Persons

465707

Count

10 Dec 2025

Events

794248

Count

10 Dec 2025

Provenance

Purpose of dataset collection

, ,

Source of data extraction

Collection source setting

, ,

Patient pathway description

,

Image contrast

Biological sample availability

Structural Metadata

Details

Publishing frequency

Version

Modified

19/05/2026

Distribution release date

31/03/2021

Citation Requirements

Coverage

Start date

31/03/2021

Time lag

Geographic coverage

, , , , , , , , , ,

Maximum age range

Follow-up

Accessibility

Language

Alignment with standardised data models

,

Controlled vocabulary

Format

, , ,

Data Access Request

Dataset pipeline status

Time to dataset access

Access request cost

Access method category

Access service description

Data use limitation

Data use requirements

Data Controller

, , , ,

Data Processor

,

Dataset Types: Health and disease, Treatments/Interventions


Data Custodian: London Secure Data Environment (SDE)

Collection Sources: Secondary care - Outpatients, Secondary care - In-patients, Other