This dataset can be found in:

Emergency departments: performance against waiting times targets, October 2009 onwards

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Next update expected:20 August 2026

Updates

23rd July 2026

New month added and revisions applied to previous data where applicable

18th June 2026

New month added and revisions applied to previous data where applicable

21st May 2026

New month added and revisions applied to previous data where applicable

12th May 2026
Dataset first published.

Main information

Designation
Accredited official statistics
Data provider
Digital Health and Care Wales (DHCW)
Data source
Emergency Department Data Set (EDDS)
Time period covered
October 2009 to June 2026
Dataset ID
3ce1cc28-0625-4674-89d6-9cf3a56f2d9c

Overview

Summary of dataset and variables

Data on attendances and waiting times at emergency departments in Wales, reported by Local Health Boards.

Data are provided for major emergency departments and other emergency departments and minor injury units. Data for other emergency departments / minor injury units are only available from April 2012.

Data collection or calculation

Data are drawn from Local Health Board administrative systems relating to the management of patients who have been referred for hospital treatment. Data are reported monthly by Local Health Boards via Digital Health and Care Wales (DHCW) and are available from October 2009.

In April 2019 health service provision for residents of Bridgend local authority moved from Abertawe Bro Morgannwg to Cwm Taf. The health board names changed, with Cwm Taf University Health Board becoming Cwm Taf Morgannwg University Health Board, and Abertawe Bro Morgannwg University Health Board becoming Swansea Bay University Health Board.

Statistical quality

Data definitions and standards are mandated by the Welsh Information Standards Board (WISB).

During the COVID-19 pandemic, several Minor Injury Units temporarily closed temporarily. These were Barry hospital (closed in March 2020; reopened in August 2020); Bryn Beryl (closed in May 2020; reopened in August 2020); Dolgellau and Barmouth District Hospital (closed in April 2020; remains closed); Tywyn & District War Memorial Hospital (closed in June 2020; remains closed); and Llandovery (closed in April 2020; remains closed).

Emergency department data for Betsi Cadwaladr University health board for December 2025 to March 2026 have been revised. The data originally published indicated a significant fall in 4-hour performance compared with previous figures, however the revised figures show performance was relatively stable.

Rounding applied

Percentages rounded to one decimal place.

Related reports

Published by

Organisation
Welsh Government
Contact email
stats.healthinfo@gov.wales