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Mental Health Services Data Set (MHSDS)

Population Size

386,419

People

Population Size statistic card

Years

2020

Years statistic card

Associated BioSamples

None/not available

Associated BioSamples statistic card

Geographic coverage

North West England: https://www.geonames.org/2641227/north-west.html

Geographic coverage statistic card

Lead time

2-6 months

Lead time statistic card

Summary

The Mental Health Services Data Set (MHSDS) is a patient level, output based secondary uses data set which aims to deliver robust, comprehensive, nationally consistent and comparable person-based information for patients who are in contact with mental health services.

Documentation

https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/mental-health-services-data-set/about

Dataset type

Health and disease

Dataset sub-type

Not applicable

Dataset population size

386419

Keywords

Observations

Observed Node

Disambiguating Description

Measured Value

Measured Property

Observation Date

Persons

Total number of unique patients in the dataset

386419

Count

12 Jun 2025

Provenance

Source of data extraction

EPR

Collection source setting

Secondary care - In-patients

Patient pathway description

The MHSDS pathway maps a person&#039s journey through mental health, learning disability, or autism services, capturing key data from referral to discharge.

Biological sample availability

None/not available

Structural Metadata

Details

Publishing frequency

Monthly

Version

1.0.0

Modified

25/06/2025

Coverage

Start date

09/06/2020

Time lag

2-4 weeks

Geographic coverage

North West England: https://www.geonames.org/2641227/north-west.html

Maximum age range

124

Accessibility

Language

en

Alignment with standardised data models

NHS DATA DICTIONARY

Controlled vocabulary

LOCAL

Format

text/csv, application/sql

Data Access Request

Access rights

https://northwestsde.nhs.uk/for-sde-users/apply-to-use-the-sde

Time to dataset access

2-6 months

Access method category

TRE/SDE

Access service description

A secure workspace within the SDE will be implemented for each project. The standard package for a secure workspace includes a cloud-based VDI providing access to an instance of the platform and as suite of included tools. Further details be provided on request.

Jurisdiction

UK

Data use limitation

Research use only

Data use requirements

User-specific restriction

Data Controller

North West Secure Data Environment

Data Processor

Arden and GEM Commissioning Support Unit

Demographics

Dataset Types: Health and disease

Collection Sources: Secondary care - In-patients

Publications about this dataset

The role of health and social factors in education outcome: A record-linked electronic birth cohort ...Evans A, Dunstan F, Fone DL, Bandyopadhyay A, Scho...

PloS one

Published - 2019