Cohort validation pack

Understanding Society

Understanding Society: UK Household Longitudinal Study

Generated 6 Oct 2026, 10:36 · ID 19

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	41 of 67 reviewable fields are cited to a source (61%) · 8 with no source yet · 18 searched — not published · 25 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	Understanding Society	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Lead sentence “Understanding Society is the UK Household Longitudinal Study.” Page: https://www.understandingsociety.ac.uk/about/about-the-study	Response for Short nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Full name Required	Understanding Society: UK Household Longitudinal Study	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Lead sentence “Understanding Society is the UK Household Longitudinal Study.” Page: https://www.understandingsociety.ac.uk/about/about-the-study	Response for Full nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Managing organisation Recommended	University of Essex	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Study base “The Study is based at the Institute for Social and Economic Research at the University of Essex.” Page: https://www.understandingsociety.ac.uk/about/about-the-study	Response for Managing organisationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Primary site Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: National multi-institution cohort; no single primary site asserted in reviewed public sources (about page, main survey docs, data releases, HDRUK UK LLC collection).	Response for Primary siteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Website URL Recommended	https://www.understandingsociety.ac.uk/	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Site identity “Understanding Society is the UK Household Longitudinal Study.” Page: https://www.understandingsociety.ac.uk/about/about-the-study Canonical public website URL is https://www.understandingsociety.ac.uk/.	Response for Website URLAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Catalogue of Mental Health Measures URL Recommended	https://www.cataloguementalhealth.ac.uk/UKHLS	Field-cited	Catalogue of Mental Health Measures https://www.cataloguementalhealth.ac.uk Section: Official sitemap study URL “https://www.cataloguementalhealth.ac.uk/UKHLS” Page: https://www.cataloguementalhealth.ac.uk/UKHLS	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 study contact owner published on reviewed public documentation pages.	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 direct contact email published on reviewed cohort summary/documentation pages.	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	UK-wide longitudinal household panel survey with annual interviews since 2009, including mental health, social and economic measures.	Field-cited	Understanding Society — Main survey documentation https://www.understandingsociety.ac.uk/documentation/mainstage Section: Main survey overview “Understanding Society, the UK Household Longitudinal Study, is a longitudinal survey of the members of approximately 40,000 households (at Wave 1) in the United Kingdom.” Page: https://www.understandingsociety.ac.uk/documentation/mainstage	Response for DescriptionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N Required	40,000	Field-cited	Understanding Society — Main survey documentation https://www.understandingsociety.ac.uk/documentation/mainstage Section: Main survey overview “approximately 40,000 households (at Wave 1)” Page: https://www.understandingsociety.ac.uk/documentation/mainstage	Response for Total NAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N qualifier Recommended	approximate	Field-cited	Understanding Society — Main survey documentation https://www.understandingsociety.ac.uk/documentation/mainstage Section: Main survey overview “approximately 40,000 households (at Wave 1)” Page: https://www.understandingsociety.ac.uk/documentation/mainstage Qualifier set to approximate because the source itself reports an approximate baseline sample size.	Response for Total N qualifierAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Year established Recommended	2009	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: BHPS linkage paragraph “Understanding Society started in 2009” Page: https://www.understandingsociety.ac.uk/about/about-the-study	Response for Year establishedAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Active cohort Recommended	Yes	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Latest updates “Main stage Waves 1-15 are available. ... Wave 16 will be available December 2026.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases	Response for Active cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ongoing recruitment Recommended	Yes	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Longitudinal design “We interview participants every year so that short- and long-term changes in people's lives can be investigated.” Page: https://www.understandingsociety.ac.uk/about/about-the-study Ongoing annual fieldwork indicates continuing cohort recruitment/refresh dynamics in panel terms.	Response for Ongoing recruitmentAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Refreshed cohort Recommended	Yes	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Continuous collection “We interview participants every year so that short- and long-term changes in people's lives can be investigated.” Page: https://www.understandingsociety.ac.uk/about/about-the-study	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 cohort-wide recontact_success_rate percentage published in reviewed sources.	Response for Recontact success rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Retention rate Recommended	90.00	Field-cited	Understanding Society — Who are our participants? https://www.understandingsociety.ac.uk/about/who-are-our-participants Section: Participant continuity “Around 90% of participants who took part in the previous wave continue to take part in Understanding Society in the next wave” Page: https://www.understandingsociety.ac.uk/about/who-are-our-participants	Response for Retention rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Published references Recommended	10.14301/llcs.v3i1.159	Field-cited	Buck and McFall 2012 — Understanding Society: design overview https://doi.org/10.14301/llcs.v3i1.159 Section: DOI “10.14301/llcs.v3i1.159” Page: https://doi.org/10.14301/llcs.v3i1.159	Response for Published referencesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Notes Recommended	Main survey waves continue annually; data available through UK Data Service access tiers.	No source yet	No citation linked to this field yet.	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	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Administrative linkage statement “Study data can be linked, with consent, to administrative records from other sources to build a richer picture of households.” Page: https://www.understandingsociety.ac.uk/about/about-the-study Step 1 identifiable participants=YES (annual participant interviews). Step 2 S251/CAG model=NO (explicit consent model quoted). Step 3 recontactable=YES (longitudinal annual interviews). Step 4 specific interventional randomisation consent=NO evidence. => 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	Understanding Society — Main survey documentation https://www.understandingsociety.ac.uk/documentation/mainstage Section: Survey scope “The overall purpose of Understanding Society is to provide high-quality longitudinal data on subjects such as health, work, education, income, family, and social life” Page: https://www.understandingsociety.ac.uk/documentation/mainstage Step 1 validated MH instruments=YES (GHQ-12 documented in study variable pages). Step 2 multi-domain data beyond symptoms=YES (health, work, education, family, social). Step 3 structured psychiatric interview plus active refresh for level 4=NO evidence of SCID/MINI. => characterisation_depth 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	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Data releases “Biomarker and genetics data was released in 2014. Epigenetics data was released in 2017, with a further dataset added in 2021.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases DERIVED: hasResearch=TRUE (questionnaire + physical + linked records); hasBiological=TRUE (biosamples + genomic + omics); hasAdvanced=FALSE (no imaging/wearable/digital phenotyping evidence). Formula -> data_availability 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	General population	Not published	DIGIT Cohort Portfolio Review — population type and engagement classification (Aug 2026) Classified general_population in the DIGIT cohort portfolio review (Aug 2026). Household panel survey of the UK general population.	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	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Participation model “As a longitudinal study, Understanding Society helps us explore how life in the UK is changing” Page: https://www.understandingsociety.ac.uk/about/about-the-study No evidence of interventional randomisation infrastructure; consent level is 3 not 4 -> twics_eligible FALSE per data-dictionary rule.	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	Understanding Society — GHQ-12 derived variable documentation https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/ Section: Derived variable note “This measure converts valid answers to 12 questions of the General Health Questionnaire (GHQ)” Page: https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/	Response for Questionnaire / interviewAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cognitive testing Recommended	No	Field-cited	Understanding Society — Main survey documentation https://www.understandingsociety.ac.uk/documentation/mainstage Section: Main survey overview “The overall purpose ... on subjects such as health, work, education, income, family, and social life” Page: https://www.understandingsociety.ac.uk/documentation/mainstage No evidence of formal cognitive batteries (e.g., CANTAB/CogState) in reviewed sources -> FALSE.	Response for Cognitive testingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Physical measures Recommended	Yes	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Key features “Our participants have contributed biomarker and genetic data collected via nurse visits.” Page: https://www.understandingsociety.ac.uk/about/about-the-study	Response for Physical measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosamples Recommended	Yes	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Key features “Our participants have contributed biomarker and genetic data collected via nurse visits.” Page: https://www.understandingsociety.ac.uk/about/about-the-study	Response for BiosamplesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genomic data Recommended	Yes	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Biomarker and genetics data “Biomarker and genetics data was released in 2014.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases	Response for Genomic dataAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Omics Recommended	Yes	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Biomarker and genetics data “Epigenetics data was released in 2017, with a further dataset added in 2021. ... Proteomics panels ... are available.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases	Response for OmicsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging Recommended	No	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Data releases sections “Main survey ... Biomarker and genetics data ... Linked data” Page: https://www.understandingsociety.ac.uk/documentation/data-releases No imaging modality release documented in reviewed public data release summary -> FALSE.	Response for ImagingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Wearable / sensor Recommended	No	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Data releases “Innovation Panel ... Wellbeing App Study data are available.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases App and survey data are not body-worn sensor streams; no wearable dataset explicitly listed -> FALSE.	Response for Wearable / sensorAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Digital phenotyping Recommended	No	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Data releases “Wellbeing App Study data are available.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases No passive smartphone metadata/digital phenotyping dataset explicitly documented -> FALSE.	Response for Digital phenotypingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked health records Recommended	Yes	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Key features “It can be linked to administrative data. Study data can be linked, with consent, to administrative records from other sources” Page: https://www.understandingsociety.ac.uk/about/about-the-study	Response for Linked health recordsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosample types Recommended	blood	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Biomarker and genetics data “Biomarker and genetics data was released in 2014.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases Cohort SQL stores conservative biosample type blood; detailed specimen matrix not provided on this page.	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: Genetics availability is documented, but platform/vendor details are not specified in reviewed public pages.	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 imaging modalities are documented for this cohort in reviewed sources.	Response for Imaging modalitiesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Mental health measures Recommended	GHQ-12	Field-cited	Understanding Society — GHQ-12 derived variable documentation https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/ Section: GHQ variable “12 questions of the General Health Questionnaire (GHQ)” Page: https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/	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	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Linked data “UK Longitudinal Linkage Collaboration (UK LLC) – data from a range of UK population level studies linked to NHS data” Page: https://www.understandingsociety.ac.uk/documentation/data-releases	Response for NHS linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
GP linkage Recommended	No	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Linked data listing “Linked data ... linked to the English NPD ... linked to DVLA records ... linked to NHS data” Page: https://www.understandingsociety.ac.uk/documentation/data-releases GP/primary care linkage is not explicitly stated in reviewed public sources -> FALSE.	Response for GP linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Death registry linkage Recommended	No	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Linked data listing “Linked data ... linked to the English NPD ... linked to DVLA records ... linked to NHS data” Page: https://www.understandingsociety.ac.uk/documentation/data-releases ONS death registry linkage is not explicitly named in reviewed public pages -> FALSE.	Response for Death registry linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Education linkage Recommended	Yes	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Linked data “Education: Understanding Society has been linked to the English NPD and to Scottish education data.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases	Response for Education linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access mechanism Recommended	direct_application	Field-cited	Understanding Society — Access data https://www.understandingsociety.ac.uk/documentation/access-data/ Section: Access statement “Researchers who would like to use Understanding Society need to register with the UK Data Service before being allowed to apply for or download datasets.” Page: https://www.understandingsociety.ac.uk/documentation/access-data/ Access route is direct application/registration via UK Data Service (not open access).	Response for Data access mechanismAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TRE platform Recommended	UK Data Service	Field-cited	Understanding Society — Access data https://www.understandingsociety.ac.uk/documentation/access-data/ Section: Access statement “Understanding Society data are available through the UK Data Service.” Page: https://www.understandingsociety.ac.uk/documentation/access-data/	Response for TRE platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data dictionary URL Recommended	https://www.understandingsociety.ac.uk/documentation	Field-cited	Understanding Society — Main survey documentation https://www.understandingsociety.ac.uk/documentation/mainstage Section: Navigation context “Main survey - Understanding Society” Page: https://www.understandingsociety.ac.uk/documentation/mainstage Project documentation root used as data dictionary/documentation URL.	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: Public access pages describe process and access levels but do not provide a fixed timeline in days.	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 fixed cost tariff is published on reviewed public access pages.	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: Public pages reviewed do not provide a cohort-wide age-band JSON distribution suitable for direct database entry.	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: Public pages reviewed do not provide a cohort-wide sex JSON distribution suitable for direct database entry.	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: Public pages reviewed do not provide a cohort-wide ethnicity JSON distribution suitable for direct database entry.	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: Median age is not published in reviewed public cohort pages.	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 public source in reviewed set provides a single cohort-wide female percentage for direct use.	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 source in reviewed set provides a single cohort-wide non-white percentage for direct use.	Response for Percent non-whiteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Geographic coverage Recommended	national	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: Key features “All four countries of the UK are included” Page: https://www.understandingsociety.ac.uk/about/about-the-study Coverage classified as national.	Response for Geographic coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Follow-up duration Recommended	>10 years	Field-cited	Understanding Society — Data releases https://www.understandingsociety.ac.uk/documentation/data-releases Section: Main survey timeline “(1991-present) Main stage Waves 1-15 are available.” Page: https://www.understandingsociety.ac.uk/documentation/data-releases Cohort follow-up exceeds 10 years.	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: Rolling waves are reported, but no single last_data_collection_date is published for this field.	Response for Last data collection dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment start date Recommended	1 Jan 2009	Field-cited	Understanding Society — About the Study https://www.understandingsociety.ac.uk/about/about-the-study Section: BHPS linkage paragraph “Understanding Society started in 2009” Page: https://www.understandingsociety.ac.uk/about/about-the-study	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: Cohort remains ongoing; no closed recruitment end date is published.	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: Transdiagnostic (anxiety-depression) Recommended Confirm this diagnosis area applies and estimated N if shown.	Transdiagnostic (anxiety-depression) · Transdiagnostic	Field-cited	Understanding Society — GHQ-12 derived variable documentation https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/ Section: GHQ variable definition “12 questions of the General Health Questionnaire (GHQ)” Page: https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/ Supports transdiagnostic anxiety-depression mapping (diagnosis_area_id 32) rather than disorder-specific coded diagnoses. UNSOURCEABLE: Public documentation confirms GHQ-12 coverage but does not publish an estimated participant count for transdiagnostic anxiety-depression caseness in the cohort summary sources reviewed.	Response for Diagnosis area: Transdiagnostic (anxiety-depression)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Diagnosis area: Transdiagnostic (anxiety-depression)

Recommended

Confirm this diagnosis area applies and estimated N if shown.

Transdiagnostic (anxiety-depression) · Transdiagnostic

Field-cited

Understanding Society — GHQ-12 derived variable documentation
https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/
Section: GHQ variable definition
“12 questions of the General Health Questionnaire (GHQ)”
Page: https://www.understandingsociety.ac.uk/documentation/mainstage/variables/scghq1_dv/
Supports transdiagnostic anxiety-depression mapping (diagnosis_area_id 32) rather than disorder-specific coded diagnoses.
UNSOURCEABLE: Public documentation confirms GHQ-12 coverage but does not publish an estimated participant count for transdiagnostic anxiety-depression caseness in the cohort summary sources reviewed.

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 sites Optional	No value held	No source yet	No citation linked to this field yet.	Response for Linked sitesAccurateNeeds 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	—	—