NHS waiting lists: estimate of unique patients, March 2022 onwards

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Standard shorthand is used in this table: [b] = break in time series.

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Data valuesData descriptionDateLocal health board
5,700Estimate of unique patientsMarch 2022Powys
6,089Estimate of unique patientsJune 2022Powys
6,355Estimate of unique patientsJanuary 2023Powys
6,357Estimate of unique patientsJuly 2022Powys
6,474Estimate of unique patientsAugust 2022Powys
6,576Estimate of unique patientsFebruary 2023Powys
6,624Estimate of unique patientsDecember 2024Powys
6,662Estimate of unique patientsJanuary 2025Powys
6,667Estimate of unique patientsNovember 2024Powys
6,672Estimate of unique patientsOctober 2024Powys
6,694Estimate of unique patientsDecember 2022Powys
6,701Estimate of unique patientsSeptember 2022Powys
6,726Estimate of unique patientsJanuary 2024Powys
6,751Estimate of unique patientsFebruary 2024Powys
6,818Estimate of unique patientsSeptember 2024Powys
6,826Estimate of unique patientsFebruary 2025Powys
6,838Estimate of unique patientsNovember 2022Powys
6,848Estimate of unique patientsOctober 2022Powys
6,875Estimate of unique patientsDecember 2023Powys
6,960Estimate of unique patientsJuly 2024Powys
6,982Estimate of unique patientsAugust 2024Powys
6,997Estimate of unique patientsMarch 2025Powys
7,003Estimate of unique patientsApril 2024Powys
7,052Estimate of unique patientsJune 2024Powys
7,072Estimate of unique patientsMarch 2023Powys
7,079Estimate of unique patientsMay 2024Powys
7,122Estimate of unique patientsMarch 2024Powys
7,191Estimate of unique patientsApril 2025Powys
7,192Estimate of unique patientsNovember 2023Powys
7,383Estimate of unique patientsJune 2025Powys
7,410Estimate of unique patientsApril 2023Powys
7,413Estimate of unique patientsOctober 2023Powys
7,436Estimate of unique patientsJuly 2025Powys
7,442Estimate of unique patientsMay 2023Powys
7,501Estimate of unique patientsMay 2025Powys
7,599Estimate of unique patientsJune 2023Powys
7,662Estimate of unique patientsSeptember 2023Powys
7,698Estimate of unique patientsAugust 2023Powys
8,131Estimate of unique patientsJuly 2023Powys
49,996Estimate of unique patients2025Powys
51,701Estimate of unique patients2022Powys
62,250Estimate of unique patientsMarch 2022Hywel Dda
64,288Estimate of unique patientsMarch 2025Hywel Dda
64,811Estimate of unique patientsFebruary 2025Hywel Dda
64,870Estimate of unique patientsJanuary 2025Hywel Dda
64,885Estimate of unique patientsApril 2025Hywel Dda
65,329Estimate of unique patientsJuly 2025Hywel Dda
65,334Estimate of unique patientsDecember 2024Hywel Dda
65,461Estimate of unique patientsMay 2025Hywel Dda
65,463Estimate of unique patientsNovember 2024Hywel Dda
65,745Estimate of unique patientsJune 2025Hywel Dda
66,099Estimate of unique patientsOctober 2024Hywel Dda
66,782Estimate of unique patientsApril 2024Hywel Dda
66,810Estimate of unique patientsJune 2022Hywel Dda
66,867Estimate of unique patientsSeptember 2024Hywel Dda
67,065Estimate of unique patientsMarch 2024Hywel Dda
67,100Estimate of unique patientsJuly 2024Hywel Dda
67,164Estimate of unique patientsJune 2024Hywel Dda
67,402Estimate of unique patientsMay 2024Hywel Dda
67,417Estimate of unique patientsFebruary 2024Hywel Dda
67,421Estimate of unique patientsAugust 2024Hywel Dda
67,446Estimate of unique patientsJanuary 2024Hywel Dda
67,592Estimate of unique patientsDecember 2023Hywel Dda
67,663Estimate of unique patientsFebruary 2023Hywel Dda
67,781Estimate of unique patientsJanuary 2023Hywel Dda
68,016Estimate of unique patientsMarch 2023Hywel Dda
68,056Estimate of unique patientsMay 2023Hywel Dda
68,157Estimate of unique patientsDecember 2022Hywel Dda
68,207Estimate of unique patientsJuly 2022Hywel Dda
68,239Estimate of unique patientsAugust 2023Hywel Dda
68,280Estimate of unique patientsJune 2023Hywel Dda
68,333Estimate of unique patientsJuly 2023Hywel Dda
68,429Estimate of unique patientsApril 2023Hywel Dda
68,935Estimate of unique patientsAugust 2022Hywel Dda
69,286Estimate of unique patientsSeptember 2022Hywel Dda
69,327Estimate of unique patientsNovember 2023Hywel Dda
69,407Estimate of unique patientsSeptember 2023Hywel Dda
69,510Estimate of unique patientsNovember 2022Hywel Dda
69,584Estimate of unique patientsOctober 2022Hywel Dda
69,753Estimate of unique patientsOctober 2023Hywel Dda
74,502Estimate of unique patientsDecember 2023Swansea Bay
74,668Estimate of unique patientsNovember 2023Swansea Bay
74,846Estimate of unique patientsJanuary 2024Swansea Bay
74,910Estimate of unique patientsFebruary 2023Swansea Bay
75,011Estimate of unique patientsMarch 2023Swansea Bay
75,339Estimate of unique patientsFebruary 2024Swansea Bay
75,494Estimate of unique patientsApril 2023Swansea Bay
75,556Estimate of unique patientsMay 2023Swansea Bay
75,696Estimate of unique patientsJanuary 2023Swansea Bay
75,808Estimate of unique patientsOctober 2023Swansea Bay
75,938Estimate of unique patientsMarch 2024Swansea Bay
75,947Estimate of unique patientsJune 2023Swansea Bay
76,334Estimate of unique patientsSeptember 2023Swansea Bay
76,521Estimate of unique patientsJuly 2023Swansea Bay
76,543Estimate of unique patientsApril 2024Swansea Bay
76,754Estimate of unique patientsMarch 2022Swansea Bay
76,857Estimate of unique patientsDecember 2022Swansea Bay
76,917Estimate of unique patientsAugust 2023Swansea Bay
77,404Estimate of unique patientsDecember 2024Swansea Bay
77,516Estimate of unique patientsJanuary 2025Swansea Bay
Showing 1 to 100 of 344 rows
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Main information

Most recent update
26 September 2025
Next update expected
23 October 2025
Designation
Management information
Data provider
NHS Trusts and Local Health Boards
Data source
No specific source from data provider
Time period covered
January 2022 to December 2025

Data notes

Overview

Summary of dataset and variables

This table provides estimated numbers of individual patients on Referral to Treatment (RTT) waiting lists in Wales by local health board.

Data collection or calculation

Estimates are based on management information provided by Welsh Local Health Boards. Management information are not assessed against the Code of Practice for statistics. Though the principles of the Code of Practice have been applied, these data are not subject to the level of quality assurance applied to accredited official statistics.

Statistical quality

The methods used by the health boards to estimate numbers of individual patients on RTT waiting lists are different, reflecting the different underlying administrative systems in use. In some cases, health boards have confirmed that their methods enable all patients to be counted, and with no duplication, meaning the figures are expected to be very accurate. In other cases, it is known that some patients are not included in the count - for example because they are not recorded on the same systems as other patients - or that there is a possibility of some duplication. The most significant example of this is in Hywel Dda University health board, where it is not possible to include patients waiting for diagnostic services or therapies. These patients account for around 10% of the total RTT pathways provided by Hywel Dda. Other examples of over and under-coverage are expected to have a very small impact on the figures.

Betsi Cadwaladr University (BCU) local health board implemented an improved method for estimating unique patients which was applied to data from April 2023. This means figures for BCU before and after April 2023 are not directly comparable. The new method had the impact of reducing the estimates for BCU by around 4,000 compared with the previous method. This was around 3% of the BCU figure. The impact on Wales level figures was small, causing a reduction of less than 1% compared with the previous methodology.

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Published by

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

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