HES Accident & Emergency (HESAE) Dataset#
Last modified: 21 Oct 2026
1. Summary#
This dataset was retired in 2020 and replaced by the Emergency Care Data Set (ECDS). Data were collected about all patients who received accident and emergency care in hospitals in England. Data collected included demographics, dates of attendance, admission and discharge, presenting complaints, outcomes of attendance, waiting times, clinical investigations, diagnosis and treatment.
| Dataset Descriptor | Dataset-specific Information |
|---|---|
| Name of Dataset in TRE | NHSE_HESAE |
| Citation (APA) | Data Services, NHS England (NHSE). (2025). NHS England: Hospital Episode Statistics (HES) Accident and Emergency Dataset. UK Longitudinal Linkage Collaboration (UK LLC). https://doi.org/10.71760/ukllc-dataset-00362-04 |
| Download Citation | Citeproc JSON BibTeX RIS |
| Series | NHS England |
| Owner | NHS England |
| Copyright | Copyright © (2026), NHS England. Data re-used with the permission of NHS England. All rights reserved. |
| Temporal Coverage in the TRE | 04/2007 - 12/2020 |
| Geographical Coverage | England |
| Participant Count | 217256 |
| Number of Variables | 244 |
| Number of Observations | 1041261 |
| Key Link | https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics |
| Keywords | None |
| Latest Extract Date | 2024-04-26 |
| Specific Restrictions to Data Use | A Codelist must be completed. |
| Build a Data Request | https://explore.ukllc.ac.uk/ |
2. Metrics#
| Cohort | Participant Count |
|---|---|
| AIRWAVE | 29935 |
| ALSPAC | 4704 |
| BCS70 | 5188 |
| BIB | 11714 |
| ELSA | 5590 |
| EPICN | 10320 |
| EXCEED | 7270 |
| GLAD | 60002 |
| MCS | 14853 |
| NCDS58 | 5434 |
| NEXTSTEP | 4883 |
| NIHRBIO_COPING | 11961 |
| NSHD46 | 2077 |
| TEDS | 6587 |
| TRACKC19 | 9545 |
| TWINSUK | 10016 |
| UKHLS | 4572 |
| UKREACH | 12605 |
3. Version History#
| Version | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Version Date | 21 Dec 2022 | 13 Apr 2023 | 26 Apr 2024 | 09 Sep 2025 |
| Number of Variables | 156 | 156 | 156 | 244 |
| Number of Observations | 1336323 | 1421046 | 1565879 | 1041261 |
| DOI | 10.71760/ukllc-dataset-00362-01 | 10.71760/ukllc-dataset-00362-02 | 10.71760/ukllc-dataset-00362-03 | 10.71760/ukllc-dataset-00362-04 |
| Change Log | 10.71760/ukllc-dataset-00362-01/activities | 10.71760/ukllc-dataset-00362-02/activities | 10.71760/ukllc-dataset-00362-03/activities | 10.71760/ukllc-dataset-00362-04/activities |
4. Documentation#
We are currently building a documentation storage system which will host useful documents related to datasets and data owners. We will surface these documents on Guidebook.
5. Useful Syntax#
Below we will include syntax that may be helpful to other researchers in the UK LLC TRE. For longer scripts, we will include a snippet of the code plus a link to the UK LLC GitHub repository where you can find the full scripts.