Hospital Episode Statistics

Access and validation

Governance details

Documents or webpages that describe the overall governance of the data source and processes and procedures for data capture and management, data quality check and validation results (governing data access or utilisation for research purposes).

Biospecimen access Are biospecimens available in the data source (e.g., tissue samples)?: No

Access to subject details Can individual patients/practitioners/practices included in the data source be contacted?: No

Description of data collection: Via NHS EHRs
https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics

Event triggering registration

Event triggering registration of a person in the data source: Start of treatment

Event triggering de-registration of a person in the data source: Death
Other

Event triggering de-registration of a person in the data source, other: Patient Opt-out

Event triggering creation of a record in the data source: Secondary Care touch point

Data source linkage

Linkage Is the data source described created by the linkage of other data sources (prelinked data source) and/or can the data source be linked to other data source on an ad-hoc basis?: Yes

Linkage description, possible linkage: HES linked to other databases via a request to Data Access Request Service (DARS) listed on the website of National Health Service (NHS) Digital at https://digital.nhs.uk/services/data-access-request-service-dars/dars-products-and-services/data-set-catalogue#c.

Linked data source 1

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: COVID-19 Second Generation Surveillance System (SGSS)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 2

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: Covid-19 UK Non-hospital Antigen Testing Results (pillar 2)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 3

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: COVID-19 Vaccination Status

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 4

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: Diagnostic Imaging Dataset (DIDs)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 5

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: Electronic Prescribing and Medicines Administration (EPMA)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 6

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: HES Accident & Emergency (A&E)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 7

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: HES Admitted Patient Care (APC)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 8

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: HES Civil Registrations (Deaths)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 9

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: HES Critical Care (CC)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 10

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: HES Outpatient (OP)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 11

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: Medicines dispensed in Primary Care (NHSBSA data)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Linked data source 12

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: Primary Care Data; Harvey Walsh is experienced in applying for linkage to CPRD and OPCRD

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: Primary Data (CPRD and OPCRD) is linakable to a subest of GP practices in England.

Linked data source 13

Pre linked Is the data source described created by the linkage of other data sources?: No

Data source, other: Summary Hospital level Mortality Indicator (SHMI)

Linkage strategy: Deterministic

Linkage variable: NHS Digital complete linkage before providing data

Linkage completeness: For Secondary Care (apart form EPMA) there is complete linkage, EPMA can be linked to 25 NHS Trusts in England.

Data management specifications that apply for the data source

Data source refresh: Monthly

Informed consent for use of data for research: Not Required

Possibility of data validation Can validity of the data in the data source be verified (e.g., access to original medical charts)?: No

Data source preservation Are records preserved in the data source indefinitely?: No

Data source preservation length: 10 years

Approval for publication Is an approval needed for publishing the results of a study using the data source?: Yes

Data source last refresh: 01/01/2023

Common Data Model (CDM) mapping

CDM mapping Has the data source been converted (ETL-ed) to a common data model?: Yes

CDM Mappings

CDM name: OMOP

CDM website: https://www.ohdsi.org/Data-standardization/

Data source ETL frequency: 1,00 month

Data source ETL status: In progress

Secondary tabs