Patients in mental health hospitals and units in Wales with a mental illness

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Standard shorthand is used in this table: [t] = total, [x] = not available.

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Census date ( of 17 selected17 selectable options)

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Data valuesData descriptionCensus dateLocal health boardAge groupSex
1,235 [t]Number of patients31st March 2025WalesAllPersons
727Number of patients31st March 2025WalesAllMale
508Number of patients31st March 2025WalesAllFemale
25Number of patients31st March 2025WalesUnder 18Persons
7Number of patients31st March 2025WalesUnder 18Male
18Number of patients31st March 2025WalesUnder 18Female
451Number of patients31st March 2025Wales18-44Persons
297Number of patients31st March 2025Wales18-44Male
154Number of patients31st March 2025Wales18-44Female
329Number of patients31st March 2025Wales45-64Persons
213Number of patients31st March 2025Wales45-64Male
116Number of patients31st March 2025Wales45-64Female
430Number of patients31st March 2025Wales65+Persons
210Number of patients31st March 2025Wales65+Male
220Number of patients31st March 2025Wales65+Female
241 [t]Number of patients31st March 2025Betsi Cadwaladr University Health BoardAllPersons
154Number of patients31st March 2025Betsi Cadwaladr University Health BoardAllMale
87Number of patients31st March 2025Betsi Cadwaladr University Health BoardAllFemale
7Number of patients31st March 2025Betsi Cadwaladr University Health BoardUnder 18Persons
2Number of patients31st March 2025Betsi Cadwaladr University Health BoardUnder 18Male
5Number of patients31st March 2025Betsi Cadwaladr University Health BoardUnder 18Female
99Number of patients31st March 2025Betsi Cadwaladr University Health Board18-44Persons
64Number of patients31st March 2025Betsi Cadwaladr University Health Board18-44Male
35Number of patients31st March 2025Betsi Cadwaladr University Health Board18-44Female
57Number of patients31st March 2025Betsi Cadwaladr University Health Board45-64Persons
41Number of patients31st March 2025Betsi Cadwaladr University Health Board45-64Male
16Number of patients31st March 2025Betsi Cadwaladr University Health Board45-64Female
78Number of patients31st March 2025Betsi Cadwaladr University Health Board65+Persons
47Number of patients31st March 2025Betsi Cadwaladr University Health Board65+Male
31Number of patients31st March 2025Betsi Cadwaladr University Health Board65+Female
34 [t]Number of patients31st March 2025Powys Teaching Health BoardAllPersons
18Number of patients31st March 2025Powys Teaching Health BoardAllMale
16Number of patients31st March 2025Powys Teaching Health BoardAllFemale
0Number of patients31st March 2025Powys Teaching Health BoardUnder 18Persons
0Number of patients31st March 2025Powys Teaching Health BoardUnder 18Male
0Number of patients31st March 2025Powys Teaching Health BoardUnder 18Female
4Number of patients31st March 2025Powys Teaching Health Board18-44Persons
4Number of patients31st March 2025Powys Teaching Health Board18-44Male
0Number of patients31st March 2025Powys Teaching Health Board18-44Female
12Number of patients31st March 2025Powys Teaching Health Board45-64Persons
6Number of patients31st March 2025Powys Teaching Health Board45-64Male
6Number of patients31st March 2025Powys Teaching Health Board45-64Female
18Number of patients31st March 2025Powys Teaching Health Board65+Persons
8Number of patients31st March 2025Powys Teaching Health Board65+Male
10Number of patients31st March 2025Powys Teaching Health Board65+Female
106 [t]Number of patients31st March 2025Hywel Dda University Health BoardAllPersons
62Number of patients31st March 2025Hywel Dda University Health BoardAllMale
44Number of patients31st March 2025Hywel Dda University Health BoardAllFemale
1Number of patients31st March 2025Hywel Dda University Health BoardUnder 18Persons
0Number of patients31st March 2025Hywel Dda University Health BoardUnder 18Male
1Number of patients31st March 2025Hywel Dda University Health BoardUnder 18Female
33Number of patients31st March 2025Hywel Dda University Health Board18-44Persons
21Number of patients31st March 2025Hywel Dda University Health Board18-44Male
12Number of patients31st March 2025Hywel Dda University Health Board18-44Female
21Number of patients31st March 2025Hywel Dda University Health Board45-64Persons
16Number of patients31st March 2025Hywel Dda University Health Board45-64Male
5Number of patients31st March 2025Hywel Dda University Health Board45-64Female
51Number of patients31st March 2025Hywel Dda University Health Board65+Persons
25Number of patients31st March 2025Hywel Dda University Health Board65+Male
26Number of patients31st March 2025Hywel Dda University Health Board65+Female
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health BoardAllPersons
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health BoardAllMale
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health BoardAllFemale
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health BoardUnder 18Persons
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health BoardUnder 18Male
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health BoardUnder 18Female
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board18-44Persons
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board18-44Male
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board18-44Female
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board45-64Persons
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board45-64Male
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board45-64Female
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board65+Persons
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board65+Male
[x]Number of patients31st March 2025Abertawe Bro Morgannwg University Health Board65+Female
220 [t]Number of patients31st March 2025Swansea Bay University Health BoardAllPersons
130Number of patients31st March 2025Swansea Bay University Health BoardAllMale
90Number of patients31st March 2025Swansea Bay University Health BoardAllFemale
0Number of patients31st March 2025Swansea Bay University Health BoardUnder 18Persons
0Number of patients31st March 2025Swansea Bay University Health BoardUnder 18Male
0Number of patients31st March 2025Swansea Bay University Health BoardUnder 18Female
90Number of patients31st March 2025Swansea Bay University Health Board18-44Persons
62Number of patients31st March 2025Swansea Bay University Health Board18-44Male
28Number of patients31st March 2025Swansea Bay University Health Board18-44Female
64Number of patients31st March 2025Swansea Bay University Health Board45-64Persons
44Number of patients31st March 2025Swansea Bay University Health Board45-64Male
20Number of patients31st March 2025Swansea Bay University Health Board45-64Female
66Number of patients31st March 2025Swansea Bay University Health Board65+Persons
24Number of patients31st March 2025Swansea Bay University Health Board65+Male
42Number of patients31st March 2025Swansea Bay University Health Board65+Female
[x]Number of patients31st March 2025Cwm Taf University Health BoardAllPersons
[x]Number of patients31st March 2025Cwm Taf University Health BoardAllMale
[x]Number of patients31st March 2025Cwm Taf University Health BoardAllFemale
[x]Number of patients31st March 2025Cwm Taf University Health BoardUnder 18Persons
[x]Number of patients31st March 2025Cwm Taf University Health BoardUnder 18Male
[x]Number of patients31st March 2025Cwm Taf University Health BoardUnder 18Female
[x]Number of patients31st March 2025Cwm Taf University Health Board18-44Persons
[x]Number of patients31st March 2025Cwm Taf University Health Board18-44Male
[x]Number of patients31st March 2025Cwm Taf University Health Board18-44Female
[x]Number of patients31st March 2025Cwm Taf University Health Board45-64Persons
Showing 1 to 100 of 2,550 rows
Page 1 of 26

Next update expected:October 2026

Updates

18th December 2025

This dataset has been updated to include data from the census taken on 31st March 2025.

25th November 2025
Dataset first published.

Main information

Designation
Official statistics
Data provider
Digital Health and Care Wales (DHCW)
Data source
Psychiatric Census
Time period covered
March 2009 to March 2024

Overview

Summary of dataset and variables

Patients in mental health hospitals and mental health units in hospitals with a mental illness, by age group, sex and local health board.

A census is taken at midnight on 31st March each year and covers patients in NHS mental health hospitals and mental health units in NHS hospitals in Wales which may have other specialties. It does not include Welsh residents who are patients at hospitals in England but can include patients who are resident in England.

The Mental Health Act 1983 (UK legislation), amended in 2007, allows people with a mental disorder to be admitted to hospital, detained and treated without their consent; whether for their own health, safety, or for the protection of other people.

People can be admitted, detained and treated under different sections of the Mental Health Act. People who are compulsorily admitted to hospital are referred to as ‘formal’ patients and people who are admitted to hospital when they are unwell without the use of compulsory powers are referred to as ‘informal’ patients.

Data collection or calculation

Each year (as of midnight 31st March) a census is taken of residents in NHS hospitals and units for people with a mental illness or a learning disability. Local Health Boards provide data to Digital Health and Care Wales (DHCW).

The data covers patients in mental health hospitals and mental health units in hospitals that may have other specialties.

The census does not include Welsh residents who are patients at hospitals in England.

Statistical quality

From 1st of April 2019 health service provision for residents of Bridgend local authority moved from Abertawe Bro Morgannwg to Cwm Taf. The health board names have 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.

No data was collected in 2020 due to the COVID-19 pandemic response, and 2021 and 2022 data was strongly affected by it. As a result, detailed data comparisons for these years with the wider timeline should be avoided. As some hospitals reported a change in practice to reduce numbers of resident patients in mental health facilities at this time, with greater provision of services within the community.

Statistics published by Welsh Government adhere to the Statistical Quality Management Strategy which supplements the Quality pillar of the Code of Practice for Statistics and the European Statistical System principles of quality for statistical outputs.

Data are collected by financial year and are subject to validation checks performed by Welsh Government statisticians and queries referred to local health boards where necessary prior to publication. However, it is the responsibility of these organisations to ensure that the figures have been compiled correctly in accordance with central definitions and guidelines.

Agreed standards and definitions within Wales provide assurance that the data is consistent across local health boards. Every year the data are collected from the same sources and adhere to the national standard, meaning that they should be coherent within and across organisations.

The statistical release is then drafted and quality assured by senior statisticians and published in line with the Code of Practice for Statistics (UK Statistics Authority).

We aim to use Plain English in our outputs and all outputs adhere to the Welsh Government accessibility policy. Furthermore, all our headlines are published in Welsh and English.

Definitions of terms used can be found in the NHS Wales Data Dictionary.

Related reports

Published by

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

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