Cohort validation pack

CRIS NELFT

North East London CRIS

Generated 6 Oct 2026, 10:35 · ID 45

Unverified

Last verified: 16/04/2026

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	35 of 67 reviewable fields are cited to a source (52%) · 7 with no source yet · 25 searched — not published · 31 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	CRIS NELFT	Field-cited	CRIS Network https://crisnetwork.co Section: Member trust anchor “North East London Foundation Trust” Page: https://crisnetwork.co/ DIGIT short label 'CRIS NELFT'; CRIS Network accordion lists the Trust as a UK-CRIS member implementation.	Response for Short nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Full name Required	North East London CRIS	Field-cited	CRIS Network https://crisnetwork.co Section: Member trust anchor “North East London Foundation Trust” Page: https://crisnetwork.co/ full_name set to 'North East London CRIS' as the programme label for this Trust's CRIS instance (managing_organisation retains the full legal Trust name including NHS).	Response for Full nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Managing organisation Recommended	North East London NHS Foundation Trust	Field-cited	North East London NHS Foundation Trust https://www.nelft.nhs.uk/ Section: Trust home identity “NELFT NHS Foundation Trust” Page: https://www.nelft.nhs.uk/ Normalised to 'North East London NHS Foundation Trust' to match the sites table legal name for site_id=42.	Response for Managing organisationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Primary site Recommended	North East London NHS Foundation Trust (site #42)	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Trust-hosted CRIS model “Data is not pooled and each Trust have their own CRIS database.” Page: https://crisnetwork.co/governance primary_site_id=42 is the existing DIGIT sites row for North East London NHS Foundation Trust hosting this Trust-local CRIS.	Response for Primary siteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Website URL Recommended	https://crisnetwork.co/	Field-cited	CRIS Network https://crisnetwork.co Section: Member trust anchor (NELFT accordion) “Go to the website >” Page: https://crisnetwork.co/ website_url set to https://crisnetwork.co/ as the authoritative public member list linking to NELFT (href http://www.nelft.nhs.uk/); a dedicated nelft.nhs.uk CRIS patient leaflet comparable to other Trusts was not located in this pass.	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: no named single CRIS programme administrator extracted into cohort.contact_name from crisnetwork.co or nelft.nhs.uk pages downloaded; DPUK (https://dementiasplatform.uk) and CLOSER study profiles (https://closer.ac.uk/study-profiles) are not appropriate systems of record for this NHS Trust CRIS register and were not used to infer a person name.	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: cohort.contact_email remains NULL; no CRIS programme mailbox was extracted from crisnetwork.co or nelft.nhs.uk pages downloaded in this pass.	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	Trust-hosted Clinical Record Interactive Search (CRIS) implementation drawing de-identified mental health and community service records from North East London NHS Foundation Trust electronic patient systems for approved research, audit and service evaluation under Trust governance; NELFT is listed as a UK-CRIS Network member Trust with its own CRIS database (not a pooled national record store).	Field-cited	CRIS Network https://crisnetwork.co Section: Member trust geography “NELFT provides an extensive range of integrated community and mental health services for people living in the London boroughs of Barking & Dagenham, Havering, Redbridge and Waltham Forest and community health services for people living in the south west Essex areas of Basildon, Brentwood and Thurrock.” Page: https://crisnetwork.co/ CRIS Network — Governance https://crisnetwork.co/governance Section: What CRIS is “CRIS stands for the Clinical Record Interactive Search system. It is a software solution that removes information from an electronic medical record that might identify an individual. It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance Description synthesises UK-wide CRIS Network governance wording with member-list confirmation that NELFT participates.	Response for DescriptionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N Required	No value held	Not published	Searched — not published UNSOURCEABLE as a cumulative archive size in this pass: CRIS Network pages reviewed do not publish an audited cumulative record count for NELFT's instance; Lia et al. 2022 is a UK-wide linkage methods paper and does not provide a NELFT-only CRIS denominator.	Response for Total NAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N qualifier Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: total_n is NULL, so qualifier is also NULL.	Response for Total N qualifierAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Year established Recommended	No value held	Field-cited	Google Scholar https://scholar.google.com Page: https://scholar.google.com/scholar?q=%22cohort+profile%22+NELFT+CRIS UNSOURCEABLE: Google Scholar cohort-profile style search did not return a dedicated NELFT CRIS cohort profile paper usable for year_established in this pass.	Response for Year establishedAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Active cohort Recommended	Yes	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Ongoing UK programme “CRIS stands for the Clinical Record Interactive Search system.” Page: https://crisnetwork.co/governance Member Trust listing and present-tense programme description → is_active TRUE.	Response for Active cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ongoing recruitment Recommended	No	Field-cited	ClinicalTrials.gov https://clinicaltrials.gov Section: ClinicalTrials.gov location hits “North East London NHS Foundation Trust” Page: https://clinicaltrials.gov/api/v2/studies?query.term=%22North+East+London+NHS+Foundation+Trust%22&pageSize=20 Secondary corroboration: v2 JSON includes conventional trials listing NELFT as a facility (e.g. CAMHS feasibility, wound care, nutrition); none register CRIS itself as the study under recruitment. ISRCTN https://isrctn.com Section: ISRCTN XML (verbatim header) “<allTrials totalCount="66"” Page: https://www.isrctn.com/api/query/format/default?q=%22North+East+London+NHS+Foundation+Trust%22&limit=50 ongoing_recruitment=FALSE (cohort UPDATE): response enumerates interventional trials where NELFT is a site; none register CRIS itself as the study. CRIS described as de-identified EHR database on crisnetwork.co/governance.	Response for Ongoing recruitmentAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Refreshed cohort Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Live EPR feed model “It is a software solution that removes information from an electronic medical record that might identify an individual.” Page: https://crisnetwork.co/governance No separate prospective cohort refreshment wave described beyond operational EHR-derived updates; is_refreshed=FALSE.	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: not published as a metric for this EHR resource.	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: not meaningful as a cohort retention rate for this register-type resource.	Response for Retention rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Published references Recommended	doi:10.1016/j.ijmedinf.2022.104704	Field-cited	Lia et al. (2022) — UK Mental Health Systems Strategy / UK-CRIS record linkage (International Journal of Medical Informatics) https://doi.org/10.1016/j.ijmedinf.2022.104704 Section: DOI resolver “https://doi.org/10.1016/j.ijmedinf.2022.104704” Page: https://doi.org/10.1016/j.ijmedinf.2022.104704 Lia et al. (2022) reports UK Biobank ↔ UK-CRIS linkage at participating trusts; used here as a secondary published methodological reference for UK-CRIS network context (not a NELFT-specific cohort profile).	Response for Published referencesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Notes Recommended	CRIS Network member description summarises NELFT geography (north-east London boroughs plus parts of south-west Essex). No public Trust-specific CRIS patient leaflet comparable to other Trusts was located on nelft.nhs.uk in this pass; governance and technology descriptions are taken from UK-wide CRIS Network materials applicable to member Trusts.	Field-cited	CRIS Network https://crisnetwork.co Section: Member trust geography “NELFT provides an extensive range of integrated community and mental health services for people living in the London boroughs of Barking & Dagenham, Havering, Redbridge and Waltham Forest and community health services for people living in the south west Essex areas of Basildon, Brentwood and Thurrock.” Page: https://crisnetwork.co/ notes also flags absence of a Trust-specific CRIS leaflet URL on nelft.nhs.uk in this verification pass. CRIS Network — Governance https://crisnetwork.co/governance Section: Example CRIS search scenario “If for example an NHS Trust wants to speak to patients with schizophrenia who are female and between the ages of 25-45 they can use CRIS to search the anonymous database and find out how many people they have who fit this criteria.” Page: https://crisnetwork.co/governance Diagnosis_area_id=1 (Schizophrenia) retained because schizophrenia is explicitly exemplified as a CRIS database search use-case for member Trusts.	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	CRIS Network — Governance https://crisnetwork.co/governance Section: HRA / CAG review “CRIS has been reviewed and approved internally by each member Trust and has also undergone an external review by the Health Research Authority, the Confidentiality Advisory Group and several ethics boards.” Page: https://crisnetwork.co/governance Step 1: identifiable clinical information exists within Trust systems before de-identification (YES). Step 2: UK-CRIS governance explicitly references Confidentiality Advisory Group review consistent with Section 251 / controlled confidential patient information processing for research without individual study consent for the de-identified database layer (YES → consent_level 2 per data-dictionary). Steps 3–4: no cohort-wide assertion that the CRIS archive itself constitutes a recontactable interventional trial register → not levels 3–4.	Response for Consent level (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Characterisation depth (axis) Required	1 — Routine EHR	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: De-identified clinical records database “It is a software solution that removes information from an electronic medical record that might identify an individual. It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance Decision tree: phenotype information for the research database is derived from routine electronic medical records transformed for secondary use (not a prospective research assessment battery) → characterisation_depth=1 (Routine EHR), aligned with verified CRIS SW London (cohort 44).	Response for Characterisation depth (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data availability (axis) Required	1 — Clinical records only	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Derivation “N/A — derived score” Page: https://crisnetwork.co/governance Mechanical derivation per data-dictionary: hasResearch = questionnaire OR cognitive OR physical OR linked_health_records = FALSE; hasBiological=FALSE; hasAdvanced=FALSE → data_availability=1. has_linked_health_records is FALSE because the cohort is an NHS-hosted CRIS research database (dictionary overlap rule: the resource is health records, not linkage to external administrative datasets flagged via has_linked_health_records).	Response for Data availability (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cohort map group (derived) Recommended	Group 4	Internal	Internal catalogue field	—	—
Population type Recommended	Data resource	Not published	DIGIT Cohort Portfolio Review — population type and engagement classification (Aug 2026) Classified data_resource in the DIGIT cohort portfolio review (Aug 2026). De-identified NHS trust electronic health record research database — a clinical records resource, not a recruited cohort.	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	Not published	DERIVED: twics_eligible=FALSE in cohort UPDATE; TWiCs eligibility requires consent_level=4 per db/schema.sql cohorts.twics_eligible comment; this resource is consent_level=2 (no external primary-source sentence required).	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	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE per data-dictionary: public materials describe transformation of care records for a de-identified research database, not a named research protocol systematically administering validated PROM batteries as the defining resource modality.	Response for Questionnaire / interviewAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cognitive testing Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE: no evidence of a dedicated research-grade cognitive test battery archive as a defining CRIS modality in reviewed UK-CRIS Network pages.	Response for Cognitive testingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Physical measures Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE: no cohort-wide objective physical measurement programme described as a defining CRIS modality.	Response for Physical measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosamples Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE: CRIS described as a de-identified records database, not a biobank resource.	Response for BiosamplesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genomic data Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE: no genomics archive described for Trust-hosted CRIS in reviewed materials.	Response for Genomic dataAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Omics Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE: no separate -omics modalities described as defining features.	Response for OmicsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE: no research imaging archive described.	Response for ImagingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Wearable / sensor Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE: no wearable sensor programme described.	Response for Wearable / sensorAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Digital phenotyping Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Database composition “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance FALSE per data-dictionary definition (passive smartphone/sensor digital phenotyping); CRIS is an EHR-derived database.	Response for Digital phenotypingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked health records Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Overlap resolution “N/A — dictionary rule” Page: https://crisnetwork.co/governance FALSE per docs/data-dictionary.md: NHS-hosted CRIS is a health-records research resource; use has_nhs_linkage (and related linkage flags) rather than has_linked_health_records.	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: no biosample_types array evidenced for this Trust CRIS instance.	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 to CRIS as described.	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 to CRIS as described.	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 as a stable TEXT[] instrument list: UK-CRIS Network materials describe routine clinical records rather than a published enumerated research battery list for NELFT.	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	CRIS Network — Governance https://crisnetwork.co/governance Section: NHS electronic medical record origin “It is a software solution that removes information from an electronic medical record that might identify an individual.” Page: https://crisnetwork.co/governance has_nhs_linkage=TRUE because CRIS is explicitly grounded in NHS Trust electronic medical / patient records.	Response for NHS linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
GP linkage Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: GP linkage (absence) “Data is not pooled and each Trust have their own CRIS database.” Page: https://crisnetwork.co/governance FALSE: reviewed UK-CRIS Network governance text does not describe a standing programme of identifiable GP-record linkage for the Trust CRIS archive (distinct from generic NHS care coordination).	Response for GP linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Death registry linkage Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Mortality registry (absence) “Data is not pooled and each Trust have their own CRIS database.” Page: https://crisnetwork.co/governance FALSE: no ONS mortality / death registry linkage programme described in reviewed UK-CRIS Network governance pages for member Trust databases.	Response for Death registry linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Education linkage Recommended	No	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Education linkage (absence) “Data is not pooled and each Trust have their own CRIS database.” Page: https://crisnetwork.co/governance FALSE: no education-administration linkage programme described in reviewed UK-CRIS Network governance pages.	Response for Education linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access mechanism Recommended	tre	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Opt-out / controlled access model “CRIS works on an opt-out model. Data is de-identified and is anonymous when made available for research.” Page: https://crisnetwork.co/governance data_access_mechanism=tre: access is not open; member Trusts operate controlled secure environments consistent with trusted research environment style governance (contracts/approvals implied by federation and oversight narrative).	Response for Data access mechanismAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TRE platform Recommended	CRIS (NELFT; UK-CRIS Network member Trust-hosted de-identified EPR research database)	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Secure research database “It then produces a de-identified database that an NHS organisation can use for research.” Page: https://crisnetwork.co/governance tre_platform string summarises Trust-hosted secure CRIS environment (aligned to cohort UPDATE).	Response for TRE platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data dictionary URL Recommended	No value held	Field-cited	HDR UK (Health Data Research Innovation Gateway) — NELFT+CRIS search (HTML shell) https://www.healthdatagateway.org/search?search=NELFT+CRIS Section: Gateway search payload (RSC) “search?search=NELFT+CRIS” Page: https://www.healthdatagateway.org/search?search=NELFT+CRIS UNSOURCEABLE: downloaded Next.js search shell contains the query string but does not expose a stable per-dataset metadata URL for a NELFT CRIS catalogue entry in the static HTML; api.catalogue.data.healthdatagateway.org also failed DNS on 2026-04-16. data_dictionary_url remains NULL.	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 numeric access timeline published in the UK-CRIS Network pages reviewed.	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 tariff extracted.	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 extractable age_distribution JSON for this Trust CRIS archive in the sources downloaded for this pass.	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 extractable sex_distribution JSON for this Trust CRIS archive in the sources downloaded for this pass.	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 extractable ethnicity_distribution JSON for this Trust CRIS archive in the sources downloaded for this pass.	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 median age statistic extracted for the Trust CRIS archive in reviewed materials.	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 percent_female statistic extracted for the Trust CRIS archive in reviewed materials.	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 percent_non_white statistic extracted for the Trust CRIS archive in reviewed materials.	Response for Percent non-whiteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Geographic coverage Recommended	single_site	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Federation / database boundary “Data is not pooled and each Trust have their own CRIS database.” Page: https://crisnetwork.co/governance single_site: one NHS provider legal entity hosts its own Trust-local CRIS database; multi-borough catchment remains within that single Trust footprint.	Response for Geographic coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Follow-up duration Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no single follow-up duration string sourced for the Trust CRIS archive in reviewed pages.	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: live EHR-backed resource without a single last_data_collection_date suitable for this DATE column.	Response for Last data collection dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment start date Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: administrative register / live EHR resource — not a protocol with recruitment_start_date.	Response for Recruitment start dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment end date Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: not applicable.	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	CRIS Network — Governance https://crisnetwork.co/governance Section: Example CRIS search scenario “If for example an NHS Trust wants to speak to patients with schizophrenia who are female and between the ages of 25-45 they can use CRIS to search the anonymous database and find out how many people they have who fit this criteria.” Page: https://crisnetwork.co/governance Diagnosis_area_id=1 (Schizophrenia) retained because schizophrenia is explicitly exemplified as a CRIS database search use-case for member Trusts. NULL: no trust-specific ICD prevalence counts for schizophrenia were found on crisnetwork.co member/governance pages or supplementary registry searches in this pass.	Response for Diagnosis area: SchizophreniaAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

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

CRIS Network — Governance
https://crisnetwork.co/governance
Section: Example CRIS search scenario
“If for example an NHS Trust wants to speak to patients with schizophrenia who are female and between the ages of 25-45 they can use CRIS to search the anonymous database and find out how many people they have who fit this criteria.”
Page: https://crisnetwork.co/governance
Diagnosis_area_id=1 (Schizophrenia) retained because schizophrenia is explicitly exemplified as a CRIS database search use-case for member Trusts.
NULL: no trust-specific ICD prevalence counts for schizophrenia were found on crisnetwork.co member/governance pages or supplementary registry searches in this pass.

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: North East London NHS Foundation Trust Recommended	North East London NHS Foundation Trust · London	Field-cited	CRIS Network — Governance https://crisnetwork.co/governance Section: Trust-local database + member anchor “Data is not pooled and each Trust have their own CRIS database.” Page: https://crisnetwork.co/governance cohort_sites links cohort 45 to site_id=42 (NELFT) as the Trust hosting this CRIS instance; corroborated by CRIS Network member list naming North East London Foundation Trust on crisnetwork.co. NULL: no sourced cumulative CRIS archive service-user total for NELFT; Lia et al. 2022 reports UK-wide linkage methodology and trust-level UK Biobank linkage subsets for some trusts, but not a NELFT-only CRIS denominator usable as local_n here.	Response for Linked site: North East London NHS Foundation TrustAccurateNeeds 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	16 Apr 2026	Internal	Internal catalogue field	—	—
Data source Recommended	Verified Apr 2026 from crisnetwork.co (Members + Governance), nelft.nhs.uk (Trust home), healthdatagateway.org (NELFT+CRIS search shell HTML — no dataset URL extracted), doi.org/10.1016/j.ijmedinf.2022.104704 (Elsevier redirect shell — contextual UK-CRIS linkage paper), ISRCTN XML API (?q="North East London NHS Foundation Trust"), ClinicalTrials.gov v2 studies API, Google Scholar ("cohort profile" NELFT CRIS — no trust-specific profile), DPUK and CLOSER browsed without a dedicated NELFT CRIS register entry. HDR UK catalogue API host (api.catalogue.data.healthdatagateway.org) did not resolve (DNS).	Internal	Internal catalogue field	—	—