Cohort validation pack

NCMH

National Centre for Mental Health

Generated 6 Oct 2026, 10:36 · ID 6

AI inferred

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	40 of 72 reviewable fields are cited to a source (56%) · 7 with no source yet · 25 searched — not published · 28 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	NCMH	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: About us “The National Centre for Mental Health (NCMH)” Page: https://www.ncmh.info/about-us/	Response for Short nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Full name Required	National Centre for Mental Health	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: About us “The National Centre for Mental Health (NCMH)” Page: https://www.ncmh.info/about-us/	Response for Full nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Managing organisation Recommended	Cardiff University / Swansea University / Bangor University	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary “operated by Cardiff University, Swansea University and Bangor University” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/	Response for Managing organisationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Primary site Recommended	National Centre for Mental Health (site #15)	Not published	Searched — not published UNSOURCEABLE externally: mapped to site id 15 to represent the NCMH lead entity, but public sources do not expose DIGIT internal site IDs.	Response for Primary siteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Website URL Recommended	https://www.ncmh.info/	Field-cited	National Centre for Mental Health (NCMH) https://www.ncmh.info/ Section: Homepage URL “https://www.ncmh.info/” Page: https://www.ncmh.info/	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	Prof Ian Jones	Field-cited	Be Part of Research — National Centre for Mental Health (NCMH) https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067 Section: Contact information “Prof Ian Jones” Page: https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067	Response for Contact nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Contact email Recommended	jonesIR1@cardiff.ac.uk	Field-cited	Be Part of Research — National Centre for Mental Health (NCMH) https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067 Section: Contact information “jonesIR1@cardiff.ac.uk” Page: https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067	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	Pan-Wales mental health research cohort operated by Cardiff, Swansea, and Bangor Universities. The cohort collects questionnaire and interview data, biological samples, and linked routine NHS data, and supports recontact for additional studies.	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: Our research “we use a variety of techniques to investigate how these areas overlap and interact” Page: https://www.ncmh.info/about-us/	Response for DescriptionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N Required	25,000	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: Take part “More than 25,000 people have taken part in our main study” Page: https://www.ncmh.info/about-us/	Response for Total NAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N qualifier Recommended	approximate	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: Take part “More than 25,000 people have taken part” Page: https://www.ncmh.info/about-us/ Stored as approximate because source is thresholded (more than 25,000), not an exact count.	Response for Total N qualifierAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Year established Recommended	2011	Field-cited	Be Part of Research — National Centre for Mental Health (NCMH) https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067 Section: Study summary “NCMH has operated under the ethical approval of a Tissue Bank (11/WA/0255) since 2011.” Page: https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067	Response for Year establishedAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Active cohort Recommended	Yes	Field-cited	Be Part of Research — National Centre for Mental Health (NCMH) https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067 Section: Status “Recruiting” Page: https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067	Response for Active cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ongoing recruitment Recommended	Yes	Field-cited	NCMH — Take part in mental health research https://www.ncmh.info/take-part Section: Take part “TAKE PART NOW” Page: https://www.ncmh.info/take-part	Response for Ongoing recruitmentAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Refreshed cohort Recommended	Yes	Field-cited	NCMH — Take part in mental health research https://www.ncmh.info/take-part Section: FAQs “We will contact you every 6-12 months” Page: https://www.ncmh.info/take-part Periodic repeat contact indicates ongoing refreshment of participant data.	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 public recontact response percentage found.	Response for Recontact success rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Retention rate Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no public retention percentage found.	Response for Retention rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Published references Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: existing DOI 10.12688/wellcomeopenres.17935.2 returns 404 on resolution check; no validated replacement cohort profile DOI identified in public sources.	Response for Published referencesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Notes Recommended	Main online study is open to adults aged 18+ and supports periodic recontact and participation in additional ethically approved studies.	Field-cited	NCMH — Take part in mental health research https://www.ncmh.info/take-part Section: Study invitation “You must be at least 18 years old to take part in this study online.” Page: https://www.ncmh.info/take-part	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	3 — Broad consent (recontactable for future studies)	Field-cited	NCMH — Take part in mental health research https://www.ncmh.info/take-part Section: About our study / FAQs “participation involves consenting to complete a Basic Assessment to join the cohort” Page: https://www.ncmh.info/take-part Step 1 identifiable=YES (contact details collected). Step 2 S251/CAG=NO (consent-based enrolment). Step 3 recontactable=YES (contact every 6-12 months and invites to new studies). Step 4 specific interventional consent=NO (no explicit consent for randomised interventional trials). Therefore consent_level=3.	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	NCMH — About us https://www.ncmh.info/about-us/ Section: Our research “We use interview and questionnaire-based assessments” Page: https://www.ncmh.info/about-us/ L1 routine EHR only=NO. L2 validated/structured MH instruments or interview-based assessments=YES. L3 multi-domain=YES (psychosocial plus biological research streams). L4 research-grade interview + refreshed=insufficient evidence for both; score set to 3.	Response for Characterisation depth (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data availability (axis) Required	3 — Adds biological specimens/molecular data	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: Derivation “Auto-derived from modality flags” Page: https://www.ncmh.info/about-us/ hasResearch=TRUE (has_questionnaire_data). hasBiological=TRUE (has_biosamples OR has_genomic_data). hasAdvanced=FALSE (imaging/wearables/digital phenotyping all FALSE). Formula returns 3.	Response for Data availability (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cohort map group (derived) Recommended	Group 2	Internal	Internal catalogue field	—	—
Population type Recommended	Case-enriched	Not published	DIGIT Cohort Portfolio Review — population type and engagement classification (Aug 2026) Classified case_enriched in the DIGIT cohort portfolio review (Aug 2026). Recruited across Wales through clinical services and community routes on experience of mental health conditions.	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	NCMH — Take part in mental health research https://www.ncmh.info/take-part Section: Consent and study model “participation involves consenting to complete a Basic Assessment” Page: https://www.ncmh.info/take-part FALSE by data-dictionary rule: twics_eligible requires consent_level=4 and explicit randomisation-within-cohort infrastructure; public sources support consent_level=3 only.	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	NCMH — About us https://www.ncmh.info/about-us/ Section: Psychosocial research “We use interview and questionnaire-based assessments” Page: https://www.ncmh.info/about-us/	Response for Questionnaire / interviewAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cognitive testing Recommended	No	Field-cited	Registry search log (HDRUK/DPUK/ClinicalTrials.gov/ISRCTN) — NCMH Page: https://www.ncmh.info/about-us/ FALSE: no explicit cognitive battery/tool named after searching NCMH public pages, HRA summary, registry pages.	Response for Cognitive testingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Physical measures Recommended	No	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary “mental and physical health, lifestyle, and background” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ FALSE conservatively: source confirms physical health information, but does not confirm objective physical measurement modality as required by data-dictionary TRUE rule.	Response for Physical measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosamples Recommended	Yes	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary “as well as biological samples” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/	Response for BiosamplesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genomic data Recommended	Yes	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: About us “from our environment and life experiences to our genetics and biological makeup” Page: https://www.ncmh.info/about-us/ TRUE: explicit genetics focus supports genomic data availability at cohort level.	Response for Genomic dataAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Omics Recommended	No	Field-cited	Registry search log (HDRUK/DPUK/ClinicalTrials.gov/ISRCTN) — NCMH Page: https://www.ncmh.info/about-us/ FALSE: no explicit non-genomic omics modality found in searched public sources.	Response for OmicsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging Recommended	No	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: Neuroimaging research “Neuroimaging offers a powerful insight” Page: https://www.ncmh.info/about-us/ FALSE conservatively: source confirms neuroimaging research theme but does not clearly confirm a cohort-level imaging archive accessible as a data modality.	Response for ImagingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Wearable / sensor Recommended	No	Field-cited	Registry search log (HDRUK/DPUK/ClinicalTrials.gov/ISRCTN) — NCMH Page: https://www.ncmh.info/about-us/ FALSE: no wearable/sensor modality identified in searched sources.	Response for Wearable / sensorAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Digital phenotyping Recommended	No	Field-cited	Registry search log (HDRUK/DPUK/ClinicalTrials.gov/ISRCTN) — NCMH Page: https://www.ncmh.info/about-us/ FALSE: no passive digital phenotyping modality identified in searched sources.	Response for Digital phenotypingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked health records Recommended	Yes	Field-cited	NCMH — Clinical Record Interactive Search (CRIS) https://www.ncmh.info/resources/cris/ Section: Clinical Record Interactive Search (CRIS) “CRIS ... will allow data to be safely and securely extracted from the Health Board’s electronic mental health clinical record system” Page: https://www.ncmh.info/resources/cris/	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: sources confirm biological samples but do not provide public type-level breakdown for this cohort record.	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: no public platform-level genomics metadata found.	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: no explicit cohort imaging modality list found.	Response for Imaging modalitiesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Mental health measures Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: public pages confirm questionnaire/interview assessment but do not publish a canonical instrument list for this cohort entry.	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	Yes	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary “link these to routine clinical NHS data” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/	Response for NHS linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
GP linkage Recommended	No	Not published	Searched — not published UNSOURCEABLE: linkage described at NHS level, but GP-specific linkage not publicly stated.	Response for GP linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Death registry linkage Recommended	No	Not published	Searched — not published UNSOURCEABLE: no explicit death-registry linkage statement found.	Response for Death registry linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Education linkage Recommended	No	Not published	Searched — not published UNSOURCEABLE: no explicit education-data linkage statement found.	Response for Education linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access mechanism Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no explicit formal access mechanism statement (tre/direct/collaboration/open/commercial) found in searched sources.	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 specific TRE platform declared for NCMH main cohort access.	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 dedicated NCMH public data dictionary URL found.	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 published turnaround time found.	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 published access fee schedule found.	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 public age-bin distribution found after searching NCMH public pages, HRA summary, Be Part of Research listing, and mandatory gateway/registry checks.	Response for Age distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Sex distribution Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no public sex distribution table found in searched sources.	Response for Sex distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ethnicity distribution Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no public ethnicity distribution table found in searched sources.	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	No value held	Not published	Searched — not published UNSOURCEABLE: no public median age found.	Response for Median ageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent female Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no verifiable public percentage female value found in searched sources.	Response for Percent femaleAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent non-white Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no public non-white percentage found.	Response for Percent non-whiteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Geographic coverage Recommended	national	Field-cited	NCMH — Take part in mental health research https://www.ncmh.info/take-part Section: About our study “wherever you live” Page: https://www.ncmh.info/take-part Classified as national from explicit UK-wide invitation wording and Welsh+English recruitment context.	Response for Geographic coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Follow-up duration Recommended	at least 15 years	Field-cited	NCMH — Take part in mental health research https://www.ncmh.info/take-part Section: FAQs “stored for use on a long term basis (at least 15 years)” Page: https://www.ncmh.info/take-part	Response for Follow-up durationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Last data collection date Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no explicit latest collection date found.	Response for Last data collection dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment start date Recommended	9 Jan 2012	Field-cited	Be Part of Research — National Centre for Mental Health (NCMH) https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067 Section: Key dates “09 Jan 2012” Page: https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067	Response for Recruitment start dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment end date Recommended	31 Mar 2030	Field-cited	Be Part of Research — National Centre for Mental Health (NCMH) https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067 Section: Key dates “31 Mar 2030” Page: https://www.bepartofresearch.nihr.ac.uk/trial-details/trial-detail?distance=&location=&trialId=20067	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: Schizophrenia Recommended Confirm this diagnosis area applies and estimated N if shown.	Schizophrenia · Psychotic Disorders	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary — Section A “Schizophrenia/Psychosis” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ UNSOURCEABLE: no diagnosis-specific participant count published in searched sources.	Response for Diagnosis area: SchizophreniaAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Diagnosis area: Bipolar disorder Recommended Confirm this diagnosis area applies and estimated N if shown.	Bipolar disorder · Mood Disorders	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary — Section A “Bipolar Disorder/Mania” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ UNSOURCEABLE: no diagnosis-specific participant count published in searched sources.	Response for Diagnosis area: Bipolar disorderAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Diagnosis area: PTSD Recommended Confirm this diagnosis area applies and estimated N if shown.	PTSD · Trauma-Related	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary — Section A “Post Traumatic Stress Disorder (PTSD)” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ UNSOURCEABLE: no diagnosis-specific participant count published in searched sources.	Response for Diagnosis area: PTSDAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Diagnosis area: Sleep disorders / insomnia Recommended Confirm this diagnosis area applies and estimated N if shown.	Sleep disorders / insomnia · Sleep Disorders	Field-cited	HRA Application Summary — National Centre for Mental Health (NCMH) https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ Section: Research summary — Section C “sleep and circadian rhythm and its association with mental illness” Page: https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/national-centre-for-mental-health-ncmh/ UNSOURCEABLE: no diagnosis-specific participant count published in searched sources.	Response for Diagnosis area: Sleep disorders / insomniaAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Linked sites

Sites contributing participants or data to this cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Linked site: National Centre for Mental Health Recommended	National Centre for Mental Health · Wales	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: About us “brings together ... Cardiff, Swansea and Bangor Universities” Page: https://www.ncmh.info/about-us/ Cohort anchored to NCMH lead site representation in DIGIT. UNSOURCEABLE: no public per-site participant counts found.	Response for Linked site: National Centre for Mental HealthAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked site: Swansea University Recommended	Swansea University · Wales	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: About us “brings together world-leading researchers from Cardiff, Swansea and Bangor Universities” Page: https://www.ncmh.info/about-us/ UNSOURCEABLE: no public per-site participant counts found.	Response for Linked site: Swansea UniversityAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked site: Bangor University Recommended	Bangor University · Wales	Field-cited	NCMH — About us https://www.ncmh.info/about-us/ Section: About us “brings together world-leading researchers from Cardiff, Swansea and Bangor Universities” Page: https://www.ncmh.info/about-us/ UNSOURCEABLE: no public per-site participant counts found.	Response for Linked site: Bangor UniversityAccurateNeeds 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	ai_inferred	Internal	Internal catalogue field	—	—
Last verified Recommended	No value held	Internal	Internal catalogue field	—	—
Data source Recommended	No value held	Internal	Internal catalogue field	—	—