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Diagnostic Imaging Dataset (DIDS)

Population Size

3,101,165

People

Population Size statistic card

Years

2022

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 Diagnostic Imaging Dataset (DIDS) is a central collection of detailed information about diagnostic imaging tests carried out on NHS patients, extracted from local Radiology Information Systems (RISs) and submitted monthly.

Documentation

https://digital.nhs.uk/services/data-services-for-commissioners/datasets/diagnostic-imaging-dataset-dids

Dataset type

Health and disease

Dataset sub-type

Not applicable

Dataset population size

3101165

Keywords

Observations

Observed Node

Disambiguating Description

Measured Value

Measured Property

Observation Date

Persons

Number of distinct individuals in the dataset

3101165

count

02 Jun 2025

Events

Number of events for 2024/25 (M1-M10)

1989864

count

02 Jun 2025

Provenance

Source of data extraction

EPR

Collection source setting

Secondary care - In-patients, Secondary care - Outpatients

Patient pathway description

The DIDS captures information for each diagnostic imaging event, from time of test request through to time of reporting

Biological sample availability

None/not available

Structural Metadata

Details

Publishing frequency

Monthly

Version

1.0.0

Modified

25/06/2025

Coverage

Start date

22/02/2022

Time lag

2-6 months

Geographic coverage

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

Maximum age range

125

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 a suite of included tools. Further details can 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 (SDE)

Data Processor

Arden and GEM Commissioning Support Unit

Demographics

Dataset Types: Health and disease

Collection Sources: Secondary care - In-patients, Secondary care - Outpatients

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