Cohort validation pack

RADAR-MDD

Remote Assessment of Disease and Relapse in Major Depressive Disorder

Generated 6 Oct 2026, 10:37 · ID 20

Unverified

Instructions for reviewers

Review each field against your knowledge of this cohort. Mark Accurate if the value is right, Needs correction if it is wrong or inaccurate (add notes), Not sure if you cannot verify it, or Does not apply if the field is not relevant.
Evidence shown is from our source registry. Fields marked No source yet hold values we could not yet pin to a document — those were AI-inferred and need your input most. Fields marked Searched — not published are ones we looked for and could not find publicly; the note lists where we checked.
Your selections and notes are kept in this browser tab only (not sent to the database). Print or save as PDF when finished, then return it to the DIGIT team.

Overview

Total fields

Field-cited

Whole-record source only

AI-inferred, no source yet

Searched — not published

No value held

Needs review

Source coverage

Summary of how well fields in this pack are linked to evidence.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Field-level source coverage Optional	47 of 67 reviewable fields are cited to a source (70%) · 7 with no source yet · 13 searched — not published · 20 with no value held	Computed	No citation linked to this field yet.	Response for Field-level source coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Identity and ownership

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Short name Required	RADAR-MDD	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Title “Remote Assessment of Disease and Relapse in Major Depressive Disorder (RADAR-MDD): recruitment, retention, and data availability in a longitudinal remote measurement study” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Short nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Full name Required	Remote Assessment of Disease and Relapse in Major Depressive Disorder	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Title “Remote Assessment of Disease and Relapse in Major Depressive Disorder” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Full nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Managing organisation Recommended	King's College London	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Primary Institutions “King's College London (KCL) (Academic, United Kingdom)” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for Managing organisationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Primary site Recommended	NIHR Maudsley Biomedical Research Centre (site #1)	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Primary Institutions “King's College London (KCL) (Academic, United Kingdom)” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Mapped to site_id=1 (Maudsley BRC / KCL lead site) in the DIGIT sites table.	Response for Primary siteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Website URL Recommended	https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Dataset page header “Remote Assessment of Disease and Relapse in Major Depressive Disorder (RADAR-MDD)” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Using the stable public dataset landing page URL.	Response for Website URLAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Catalogue of Mental Health Measures URL Recommended	No value held	No source yet	No citation linked to this field yet.	Response for Catalogue of Mental Health Measures URLAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Contact name Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: Public pages consulted (Atlas, BMC papers, HRA summary, RADAR-base case page) do not publish a specific current cohort contact name field for RADAR-MDD.	Response for Contact nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Contact email Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: No public dedicated RADAR-MDD contact email found in sources searched; HRA page omits a contact email value.	Response for Contact emailAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Summary and status

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Description Required	Multi-centre longitudinal cohort study in recurrent major depressive disorder using smartphone sensing, wearable devices, and repeated questionnaire/cognitive assessments to track symptoms and relapse risk.	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Methods “RADAR-MDD is a multi-centre, prospective observational cohort study ... People with a history of MDD were provided with a wrist-worn wearable device, and smartphone apps designed to: a) collect data from smartphone sensors; and b) deliver questionnaires, speech tasks, and cognitive assessments.” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for DescriptionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N Required	623	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Results “Individuals with a history of MDD (n = 623) were enrolled in the study” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Total NAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N qualifier Recommended	as_of_2022	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Publication date context “Published: 21 February 2022” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Set to as_of_2022 because n=623 is reported in the 2022 outcomes paper.	Response for Total N qualifierAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Year established Recommended	2017	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Remote data collection “Data collection started in London (UK) in November 2017” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Year establishedAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Active cohort Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Dataset details “Ongoing? No” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for Active cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ongoing recruitment Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Dataset details “Ongoing? No” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for Ongoing recruitmentAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Refreshed cohort Recommended	Yes	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Remote data collection / follow-up “Participants were followed-up for a minimum of 11 months and maximum of 24 months.” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Repeated longitudinal reassessment qualifies as refreshed under data dictionary definition.	Response for Refreshed cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recontact success rate Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: No explicit recontact response-rate statistic reported in protocol/outcomes paper, Atlas, HRA, or RADAR-base case study.	Response for Recontact success rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Retention rate Recommended	79.80	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Results “A total of 497 people (79.8%) participated for the maximum possible duration” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Used as retention_rate proxy per latest follow-up completion summary.	Response for Retention rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Published references Recommended	doi:10.1186/s12888-019-2049-z, doi:10.1186/s12888-022-03753-1, doi:10.1038/s41746-023-00749-3	Field-cited	RADAR-MDD baseline characteristics table (npj Digital Medicine) https://doi.org/10.1038/s41746-023-00749-3 Section: Table page / article linkage “Back to article page” Page: https://www.nature.com/articles/s41746-023-00749-3/tables/1 Included DOI 10.1038/s41746-023-00749-3 in published_references; BMC 2019 and 2022 DOIs sourced from sources 120000 and 120001.	Response for Published referencesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Notes Recommended	Part of the RADAR-CNS programme. RADAR-MDD recruited across London, Amsterdam, and Barcelona and followed participants for up to 24 months using active and passive remote measurement technologies.	Field-cited	HRA summary — RADAR-MDD v0.1 https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/radar-mdd-v01/ Section: Research summary “RADAR-MDD is a clinical study aiming to assess the utility of multiparametric RMT in clinical populations with MDD ... part of RADAR-CNS” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/radar-mdd-v01/	Response for NotesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

3D cohort mapping

Consent, characterisation, and data availability axes used on the cohort map.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Consent level (axis) Required	2 — Section 251 / CAG (pseudonymised, no individual consent)	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Study population / consent “All participants provided written consent” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Step 1 identifiable=YES (individual participants enrolled with consent). Step 2 S251/CAG=NO (consent-based study). Step 3 recontact for future studies=NOT EVIDENCED in sources. Under decision tree this yields Level 2.	Response for Consent level (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Characterisation depth (axis) Required	3 — Multi-domain MH characterisation	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Methods “The aRMT app administered validated measurements ... PHQ8 ... speech task ... ESM ... Cognitive function was measured every 6-weeks via an additional THINC-it app” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 L1 routine EHR only? NO. L2 validated MH instruments? YES (PHQ-8, IDS-SR/CIDI-SF). L3 multi-domain beyond symptoms? YES (speech, cognition, passive sensing, activity/sleep). L4 research-grade interview + refreshed? NO research-grade SCID/MINI evidence. -> Level 3.	Response for Characterisation depth (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data availability (axis) Required	2 — Records + research data	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Methods / Data collection “smartphone sensors ... questionnaires, speech tasks, and cognitive assessments ... wearable device” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 hasResearch=TRUE (questionnaire,cognitive). hasBiological=FALSE (no biosamples/genomics/omics). hasAdvanced=TRUE (wearable + digital phenotyping). Formula => 2 because hasAdvanced without biological does not reach level 4.	Response for Data availability (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cohort map group (derived) Recommended	Group 3	Internal	Internal catalogue field	—	—
Population type Recommended	Clinical	Not published	DIGIT Cohort Portfolio Review — population type and engagement classification (Aug 2026) Classified clinical in the DIGIT cohort portfolio review (Aug 2026). Recruited on recurrent major depressive disorder for remote measurement; study completed.	Response for Population typeAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Industry engagement status Recommended	Unknown	Not published	Searched — not published UNSOURCEABLE: industry engagement status is an organisational property of the custodian and is not publicly documented; default 'unknown' pending a cohort-owner meeting.	Response for Industry engagement statusAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Parent cohort / programme Recommended	No value held	No source yet	No citation linked to this field yet.	Response for Parent cohort / programmeAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TWiCs eligible Recommended	No	Field-cited	RADAR-MDD protocol paper (BMC Psychiatry, 2019) https://doi.org/10.1186/s12888-019-2049-z Section: Study design “The study involves no randomisation or intervention” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-019-2049-z Does not satisfy TWiCs requirement for interventional randomisation framework. Set FALSE.	Response for TWiCs eligibleAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Data modalities

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Questionnaire / interview Recommended	Yes	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Active RMT “administered validated measurements ... PHQ8 ... RSES” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Questionnaire / interviewAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cognitive testing Recommended	Yes	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Cognitive function “Cognitive function was measured every 6-weeks via an additional THINC-it app” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Cognitive testingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Physical measures Recommended	No	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Methods “wrist-worn wearable device ... smartphone sensors” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 No source evidence of cohort-wide anthropometry/vitals/clinical physical-measure battery as defined by dictionary. Set FALSE.	Response for Physical measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosamples Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd No biosample collection reported in Atlas summary. Set FALSE.	Response for BiosamplesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genomic data Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Data types collected ... Wearable devices ... questionnaires/interviews; Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd No genomic modality reported. Set FALSE.	Response for Genomic dataAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Omics Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd No omics modality reported. Set FALSE.	Response for OmicsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Neuroimaging data collection - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for ImagingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Wearable / sensor Recommended	Yes	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Methods “People with a history of MDD were provided with a wrist-worn wearable device” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Wearable / sensorAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Digital phenotyping Recommended	Yes	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Passive RMT “collected data on ambient noise, ambient light, location, app usage, Bluetooth connectivity, phone usage, and battery life” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Digital phenotypingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked health records Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for Linked health recordsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosample types Recommended	No value held	Not published	Searched — not published UNSOURCEABLE/NOT APPLICABLE: No biosample collection reported; field left NULL with has_biosamples=FALSE.	Response for Biosample typesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genotyping platform Recommended	No value held	Not published	Searched — not published UNSOURCEABLE/NOT APPLICABLE: No genomic data reported; field left NULL with has_genomic_data=FALSE.	Response for Genotyping platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging modalities Recommended	No value held	Not published	Searched — not published UNSOURCEABLE/NOT APPLICABLE: No neuroimaging data collection reported; field left NULL with has_imaging_data=FALSE.	Response for Imaging modalitiesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Mental health measures Recommended	PHQ-8, IDS-SR, CIDI-SF, GAD-7, RSES	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Methods “PHQ8 ... IDS-SR ... CIDI-SF ... GAD7 ... RSES” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Populated with named validated instruments explicitly described in protocol/outcomes paper.	Response for Mental health measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Data subcategories

Structured modality and subcategory rows used alongside the high-level data-type flags.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Data subcategories Recommended List key data subcategories using distinct rows for category markers, named questionnaire/interview instruments, biospecimen types, omics/genomics data products, imaging modalities, sensor streams, and linked-record types.	No value held	No source yet	No citation linked to this field yet.	Response for Data subcategoriesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Data subcategories

Recommended

List key data subcategories using distinct rows for category markers, named questionnaire/interview instruments, biospecimen types, omics/genomics data products, imaging modalities, sensor streams, and linked-record types.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Consent and use permissions

Specific use permissions separate from the 3D consent-level axis.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Consent and use permissions Recommended Confirm health/biomedical research use, industry/commercial consideration, non-commercial restrictions, governance modifiers, recontact, trial approach, biosample use, linkage, sharing, international transfer, and any Section 251/CAG support.	No value held	No source yet	No citation linked to this field yet.	Response for Consent and use permissionsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Consent and use permissions

Recommended

Confirm health/biomedical research use, industry/commercial consideration, non-commercial restrictions, governance modifiers, recontact, trial approach, biosample use, linkage, sharing, international transfer, and any Section 251/CAG support.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Access pathways

One or more routes by which researchers can request or analyse data.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Access pathways Recommended Confirm all data access pathways, including route, access level, TRE/SDE or download/API environment, DAC review, collaboration requirements, data sharing agreements, output checking, timelines, and fees.	No value held	No source yet	No citation linked to this field yet.	Response for Access pathwaysAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Access pathways

Recommended

Confirm all data access pathways, including route, access level, TRE/SDE or download/API environment, DAC review, collaboration requirements, data sharing agreements, output checking, timelines, and fees.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Within-cohort coverage

Aggregate counts or percentages showing how broadly data, consent, or access characteristics apply within the cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Within-cohort coverage metrics Recommended Provide numerator, denominator, unit type, numerator/denominator exactness qualifiers, denominator type, basis, date/release, original source wording, and whether each metric is marginal, joint, conditional, or a release total.	No value held	No source yet	No citation linked to this field yet.	Response for Within-cohort coverage metricsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Within-cohort coverage metrics

Recommended

Provide numerator, denominator, unit type, numerator/denominator exactness qualifiers, denominator type, basis, date/release, original source wording, and whether each metric is marginal, joint, conditional, or a release total.

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Linkage and access

Field	Current value	Evidence	Source evidence	Response	Notes / correction
NHS linkage Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for NHS linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
GP linkage Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for GP linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Death registry linkage Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for Death registry linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Education linkage Recommended	No	Field-cited	Atlas of Longitudinal Datasets — RADAR-MDD https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd Section: Data types collected “Linked or secondary data - None” Page: https://atlaslongitudinaldatasets.ac.uk/datasets/radar-mdd	Response for Education linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access mechanism Recommended	collaboration	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Availability of data and materials “The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Mapped to collaboration access model (request via cohort investigators).	Response for Data access mechanismAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TRE platform Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: No TRE/SDE platform specified for RADAR-MDD access in public sources.	Response for TRE platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data dictionary URL Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: No public RADAR-MDD variable dictionary URL found in BMC papers, Atlas, HRA, RADAR-base case page, HDRUK search, DPUK portal, ClinicalTrials query, or ISRCTN query (registry page unavailable via repeated fetch attempts).	Response for Data dictionary URLAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access timeline (days) Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: No processing timeline (days) for access requests found in public sources.	Response for Data access timeline (days)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access cost Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: No public access-cost information found for RADAR-MDD data access.	Response for Data access costAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Participant profile and dates

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Age distribution Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: No published age-band proportion table (e.g., 18-30/31-45/etc.) found in protocol paper, 2022 outcomes paper text, Atlas page, HRA summary, or registry pages. Only summary median age is available.	Response for Age distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Sex distribution Recommended	male: 0.243; female: 0.757	Field-cited	RADAR-MDD baseline characteristics table (npj Digital Medicine) https://doi.org/10.1038/s41746-023-00749-3 Section: Table 1 “Female, n (%) 465 (75.7)” Page: https://www.nature.com/articles/s41746-023-00749-3/tables/1 Derived male proportion = 24.3%.	Response for Sex distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ethnicity distribution Recommended	asian: 0.034; black: 0.03; other: 0.073; white: 0.863	Field-cited	RADAR-MDD baseline characteristics table (npj Digital Medicine) https://doi.org/10.1038/s41746-023-00749-3 Section: Table 1 “White 404 (86.3) ... Black 14 (3.0) ... Asian 16 (3.4) ... Other 34 (7.3)” Page: https://www.nature.com/articles/s41746-023-00749-3/tables/1 Percentages reported in table; note states ethnicity not collected for CIBER participants.	Response for Ethnicity distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Smoking status distribution Recommended	No value held	No source yet	No citation linked to this field yet.	Response for Smoking status distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Median age Recommended	49.0	Field-cited	RADAR-MDD baseline characteristics table (npj Digital Medicine) https://doi.org/10.1038/s41746-023-00749-3 Section: Table 1 “Age (median [IQR]) 49.00 [32.00, 58.75]” Page: https://www.nature.com/articles/s41746-023-00749-3/tables/1	Response for Median ageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent female Recommended	75.70	Field-cited	RADAR-MDD baseline characteristics table (npj Digital Medicine) https://doi.org/10.1038/s41746-023-00749-3 Section: Table 1 “Female, n (%) 465 (75.7)” Page: https://www.nature.com/articles/s41746-023-00749-3/tables/1	Response for Percent femaleAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent non-white Recommended	13.70	Field-cited	RADAR-MDD baseline characteristics table (npj Digital Medicine) https://doi.org/10.1038/s41746-023-00749-3 Section: Table 1 “White 404 (86.3)” Page: https://www.nature.com/articles/s41746-023-00749-3/tables/1 Computed percent_non_white as 100 - 86.3 = 13.7. Table note indicates missing ethnicity for CIBER site participants.	Response for Percent non-whiteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Geographic coverage Recommended	multi_site	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Study design “The study has three recruitment sites: King's College London (KCL, UK), Amsterdam University Medical Centre ... and ... CIBER (Barcelona, Spain).” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Multi-site recruitment.	Response for Geographic coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Follow-up duration Recommended	11-24 months	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Recruitment and retention rates “the minimum and maximum lengths of possible follow-up were 11 months and 24 months respectively” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Follow-up durationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Last data collection date Recommended	1 May 2021	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Data collection with RMT “data collection continuing until the last participant was unenrolled from the study on 1st May 2021” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Last data collection dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment start date Recommended	30 Nov 2017	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Recruitment and retention rates “The first person was enrolled in RADAR-MDD on 30th November 2017” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Recruitment start dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment end date Recommended	3 Jun 2020	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Recruitment and retention rates “recruitment ended on 3rd June 2020” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1	Response for Recruitment end dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Diagnosis areas

Mental health diagnosis areas represented in this cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Diagnosis area: Major depressive disorder Recommended Confirm this diagnosis area applies and estimated N if shown.	Major depressive disorder · Mood Disorders · est. n=623	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Results “Individuals with a history of MDD (n = 623) were enrolled in the study” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Diagnosis area 5 (Major depressive disorder) covers the full RADAR-MDD cohort by study design. RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Study population “individuals must ... have met DSM-5 diagnostic criteria for non-psychotic MDD” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Cohort eligibility requires MDD; prevalence within this diagnosis area set to 1.0000.	Response for Diagnosis area: Major depressive disorderAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Diagnosis area: Major depressive disorder

Recommended

Confirm this diagnosis area applies and estimated N if shown.

Major depressive disorder · Mood Disorders · est. n=623

Field-cited

RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022)
https://doi.org/10.1186/s12888-022-03753-1
Section: Results
“Individuals with a history of MDD (n = 623) were enrolled in the study”
Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1
Diagnosis area 5 (Major depressive disorder) covers the full RADAR-MDD cohort by study design.
RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022)
https://doi.org/10.1186/s12888-022-03753-1
Section: Study population
“individuals must ... have met DSM-5 diagnostic criteria for non-psychotic MDD”
Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1
Cohort eligibility requires MDD; prevalence within this diagnosis area set to 1.0000.

AccurateNeeds correctionNot sureDoes not apply

Linked sites

Sites contributing participants or data to this cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Linked site: NIHR Maudsley Biomedical Research Centre Recommended	NIHR Maudsley Biomedical Research Centre · London	Field-cited	RADAR-MDD recruitment, retention, and data availability (BMC Psychiatry, 2022) https://doi.org/10.1186/s12888-022-03753-1 Section: Study design “The study has three recruitment sites: King's College London (KCL, UK), Amsterdam University Medical Centre ... and ... CIBER (Barcelona, Spain).” Page: https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-022-03753-1 Linked to UK site_id=1 for KCL representation in DIGIT site table.	Response for Linked site: NIHR Maudsley Biomedical Research CentreAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Verification metadata

Internal catalogue status — for reference only.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Verification status Recommended	unverified	Internal	Internal catalogue field	—	—
Last verified Recommended	No value held	Internal	Internal catalogue field	—	—
Data source Recommended	No value held	Internal	Internal catalogue field	—	—