HES Maternity (HESAPC_MAT) Dataset

HES Maternity (HESAPC_MAT) Dataset#

Last modified: 29 Jul 2025

All births in NHS hospitals in England.

1. Summary#

This dataset is a subset of the HES Admitted Patient Care (APC) dataset. Maternity data are also collected in the Maternity Services Data Set (MSDS). Some measures are available in both (e.g. ethnicity of the mother and the baby’s birth weight) and some are unique to one specific data set (e.g. only the MSDS collects the mother’s smoking status and the first feed information, while only HESAPC_MAT collects the length of hospital stay and the number of babies delivered per pregnancy). In reports, HESAPC_MAT data are used for the national totals, because they have historically been more complete.

Dataset Descriptor Dataset-specific Information
Name of Dataset in TRE NHSE_HESAPC_MAT
Citation (APA) Data Services, NHS England (NHSE). (2024). NHS England: Hospital Episode Statistics (HES) Maternity Dataset. UK Longitudinal Linkage Collaboration (UK LLC). https://doi.org/10.71760/ukllc-dataset-00373-03
Download Citation Citeproc JSON     BibTeX     RIS
Series NHS England
Owner NHS England
Temporal Coverage in the TRE 04/2000 - ongoing
Geographical Coverage England
Participant Count 149912
Number of Variables 101
Number of Observations 143467
Key Link https://digital.nhs.uk/data-and-information/data-tools-and-services/data-services/hospital-episode-statistics
Keywords Inpatients, NHS hospitals
Latest Extract Date 2024-04-26
Specific Restrictions to Data Use None
Build a Data Request https://explore.ukllc.ac.uk/

2. Metrics#

Click on the plus sign to see the number of participants represented in each dataset.

Table 2: Participants from each LPS represented in the HESAPC_MAT dataset in the UK LLC TRE. Note: Individual cohort counts of less than 10 are suppressed to <10 and excluded from total participant counts for datasets.

3. Version History#

Version 1 2 3
Version Date 21 Dec 2022 13 Apr 2023 26 Apr 2024
Number of Variables 101 101 101
Number of Observations 120047 127162 143467
DOI 10.71760/ukllc-dataset-00373-01 10.71760/ukllc-dataset-00373-02 10.71760/ukllc-dataset-00373-03
Change Log 10.71760/ukllc-dataset-00373-01/activities 10.71760/ukllc-dataset-00373-02/activities 10.71760/ukllc-dataset-00373-03/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.