Mental Health and Learning Disabilities Data Set (MHLDDS)

Last modified: 12 Oct 2026

The Mental Health and Learning Disabilities Data Set (MHLDDS) was one of the pre-cursors of the Mental Health Services Data Set (MHSDS), with data collected between 2014 and 2016.

1. Summary

Data about mental health services was introduced in April 2000 to provide clinical information about adults with mental health issues. Over the years, the mental health dataset has evolved significantly. The Mental Health and Learning Disabilities Data Set (MHLDDS) was used to collect information between 2014 and 2016. Expanding upon its precursor, the Mental Health Minimum Dataset (MHMDS), the MHLDDS included information about adults who access learning disabilities services and autistic spectrum disorder services. Researchers who are approved to access any of the three mental health datasets will automatically be provisioned all three.

Dataset Descriptor	Dataset-specific Information
Name of Dataset in TRE	NHSE_MHLDDS
Citation (APA)	Data Services, NHS England (NHSE). (2025). NHS England: Mental Health and Learning Disabilities Data Set (MHLDDS). UK Longitudinal Linkage Collaboration (UK LLC). https://doi.org/10.71760/ukllc-dataset-00683-04
Download Citation	Citeproc JSON     BibTeX     RIS
Series	NHS England
Owner	NHS England
Copyright	Copyright © (2026), NHS England. Data re-used with the permission of NHS England. All rights reserved.
Temporal Coverage in the TRE	01/2014 - 01/2016
Geographical Coverage	England
Participant Count	N/A - Dataset comprises of multiple auxiliary tables
Number of Variables	N/A
Number of Observations	N/A
Key Link	https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/mental-health-services-data-set/mental-health-and-learning-disabilities-statistics-mhlds-monthly-reports
Keywords	Mental health
Latest Extract Date	2024-04-26
Specific Restrictions to Data Use	None
Build a Data Request	https://explore.ukllc.ac.uk/

2. Metrics

TBC

3. Version History

Version	4
Version Date	09 Sep 2025
Number of Variables	N/A
Number of Observations	N/A
DOI	10.71760/ukllc-dataset-00683-04
Change Log	10.71760/ukllc-dataset-00683-04/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.