Version: 1.0.0 | Published: 3 Jun 2025 | Updated: 187 days ago
SAHSU - NHS England - Linked HES-ONS Mortality Data
Dataset
Documentation
Associated Media:
Description:
The HES-ONS linked mortality dataset combines Hospital Episode Statistics (HES), which contains clinical information on patients' hospital activity and treatment such as diagnoses and procedures, with mortality records from the Office for National Statistics (ONS). The linkage captures deaths of people who have been treated in English hospitals, irrespective of whether they died in hospital or not.
While HES data alone can be used to identify if a patient died in hospital and analysed on the basis of their primary diagnosis, it cannot determine the cause of death or capture deaths after discharge. The ONS mortality data is a richer source of information on deaths, containing cause of death, date and place of death for all deaths registered in England and Wales, based on information from death certificates.
By linking the two datasets, it is possible to analyse deaths both in and outside hospital, assess outcomes such as postoperative mortality (e.g. deaths within 30, 60 or 90 days), track provider performance, and conduct long-term follow-up on survival rates. The dataset only includes mortality information for individuals who have had a record in HES.
SAHSU holds a data sharing agreement with NHS England and has access to a restricted subset of variables from the full dataset.
The dataset may be internally linkable with SAHSU's environmental datasets, including air pollution and green space.
Coverage
Spatial:
England
Typical Age Range:
0-150
Follow Up:
Other
Provenance
Origin
Purposes:
Other
Sources:
Other
Collection Situations:
Other
Temporal
Accrual Periodicity:
Annual
Start Date:
01 January 1997
End Date:
31 December 2024
Time Lag:
More than 6 months
Accessibility
Access
Access Rights:
Access Service:
Certified Secure Research Environment
Access Request Cost:
Variable
Delivery Lead Time:
Variable
Jurisdictions:
GB-ENG
Data Controller:
Imperial College London
Data Processor:
Imperial College London
Usage
Data Use Limitations:
Research-specific restrictions
Data Use Requirements:
- Collaboration required
- Ethics approval required
- Geographical restrictions
- Institution-specific restrictions
- Not for profit use
- Publication required
- Project-specific restrictions
- User-specific restriction
- Disclosure control
Resource Creators:
Small Area Health Statistics Unit
Format and Standards
Vocabulary Encoding Schemes:
LOCAL
Conforms To:
LOCAL
Languages:
en
Formats:
csv