Cohort validation pack

SleepQuest

SleepQuest UK longitudinal sleep and mental health cohort study

Generated 6 Oct 2026, 10:35 · ID 72

AI inferred

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	39 of 69 reviewable fields are cited to a source (57%) · 7 with no source yet · 23 searched — not published · 16 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	SleepQuest	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Title “Results from the SleepQuest study” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Short nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Full name Required	SleepQuest UK longitudinal sleep and mental health cohort study	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “SleepQuest was a longitudinal web‑based survey hosted on the REDCap system at the University of Bristol, UK, open to all UK adults over the age of 18 years.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ full_name synthesises the public SleepQuest study branding with the UK host and design described in the methods.	Response for Full nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Managing organisation Recommended	University of Bristol	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Author affiliations “Institute of Clinical Neurosciences, University of Bristol, Bristol, UK” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Managing organisationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Primary site Recommended	NIHR Bristol Biomedical Research Centre (site #8)	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Author affiliations “NIHR Bristol Biomedical Research Centre, University of Bristol, Bristol, UK” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ primary_site_id=8 maps to the NIHR Bristol BRC site row (University of Bristol / UHBW partnership) as the closest institutional anchor for the listed NIHR Bristol BRC affiliation.	Response for Primary siteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Website URL Recommended	https://doi.org/10.1111/jsr.14205	Field-cited	University of Bristol Pure — SleepQuest publication catalogue page https://research-information.bris.ac.uk/en/publications/sleep-quality-during-and-after-severe-acute-respiratory-syndrome-/ Section: DOIs “10.1111/jsr.14205” Page: https://research-information.bris.ac.uk/en/publications/sleep-quality-during-and-after-severe-acute-respiratory-syndrome-/ website_url uses https://doi.org/10.1111/jsr.14205 as the stable public landing link copied from the Pure page DOI list; sleepquest.co.uk DNS did not resolve in the population environment.	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	Dr Victoria Grace Gabb	Field-cited	University of Bristol Pure — SleepQuest publication catalogue page https://research-information.bris.ac.uk/en/publications/sleep-quality-during-and-after-severe-acute-respiratory-syndrome-/ Section: Citation metadata “Victoria Grace Gabb” Page: https://research-information.bris.ac.uk/en/publications/sleep-quality-during-and-after-severe-acute-respiratory-syndrome-/ Prefixed with Dr in cohort row as standard academic display title for corresponding author role described in PMC correspondence footnote.	Response for Contact nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Contact email Recommended	victoria.gabb@bristol.ac.uk	Field-cited	University of Bristol Pure — SleepQuest publication catalogue page https://research-information.bris.ac.uk/en/publications/sleep-quality-during-and-after-severe-acute-respiratory-syndrome-/ Section: Citation metadata “victoria.gabb@bristol.ac.uk” Page: https://research-information.bris.ac.uk/en/publications/sleep-quality-during-and-after-severe-acute-respiratory-syndrome-/	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 adults completed a longitudinal web-based survey (REDCap, University of Bristol) at three timepoints spanning the first and second national COVID-19 lockdowns and a post-restrictions wave (2020–2022). The programme collected Pittsburgh Sleep Quality Index sleep quality, PHQ-8 depression, GAD-7 anxiety, Dysfunctional Attitudes and Beliefs About Sleep (DBAS-16), and self-reported exercise and daylight exposure, with recruitment weighted toward older adults via Join Dementia Research alongside social media and press routes.	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “Participants were primarily recruited via the Join Dementia Research (JDR) database managed by the National Institute for Health Research in collaboration with the charitable organisations Alzheimer''s Society, Alzheimer''s Research UK, and Alzheimer''s Scotland.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Description also incorporates REDCap hosting, UK-wide adults, three timepoints, and named instruments from adjacent methods subsections in the same HTML snapshot.	Response for DescriptionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N Required	3,306	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Cohort demographics “A total of 3306 people completed the minimum dataset during the first full lockdown (T1)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Total NAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N qualifier Recommended	No value held	Not published	NULL: total_n is an exact analytic n for the T1 complete minimum-dataset cohort per Table 1; no qualifier token in docs/data-dictionary.md Total N Qualifiers list cleanly matches this definition, so qualifier left blank.	Response for Total N qualifierAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Year established Recommended	2020	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “Data were collected at two timepoints during periods of UK national lockdown (T1: 29/04/2020–13/05/2020;” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ year_established=2020 from first in-study data collection window.	Response for Year establishedAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Active cohort Recommended	No	Field-cited	DPUK Data Portal — SleepQuest cohort directory shell page https://portal.dementiasplatform.uk/CohortDirectory/Item?fingerPrintID=SleepQuest Section: HTML title “SleepQuest Cohort - DPUK Data Portal” Page: https://portal.dementiasplatform.uk/CohortDirectory/Item?fingerPrintID=SleepQuest Cohort remains catalogued on DPUK for research access; treated as an maintained archive resource (is_active=TRUE). DIGIT Cohort Portfolio Review — population type and engagement classification (Aug 2026) Deactivated: COVID-era web-survey cohort completed 2022; no ongoing collection or recontact infrastructure; fails all four industry-utility criteria.	Response for Active cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ongoing recruitment Recommended	No	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “a third timepoint that followed relaxation of all lockdown rules (T3: 05/12/2022–19/12/2022).” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Fieldwork windows are bounded and described in past tense in the 2024 paper → ongoing_recruitment=FALSE.	Response for Ongoing recruitmentAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Refreshed cohort Recommended	No	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Introduction — The SleepQuest study “SleepQuest employs a longitudinal study design, allowing unique comparison of data from the same individuals during two periods of lockdown in the UK and after nearly all restrictions were lifted within the UK.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Follow-up waves are part of a fixed three-wave study rather than periodic cohort renewal per data-dictionary.md is_refreshed guidance; 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: no response-rate percentage for email follow-ups reported in reviewed paper HTML.	Response for Recontact success rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Retention rate Recommended	36.08	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Cohort demographics “1193 from the third timepoint (T3)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ retention_rate ≈ 1193/3306*100 using T1 analytic n as denominator for participants returning at the latest wave reported in the same paragraph.	Response for Retention rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Published references Recommended	doi:10.1111/jsr.14205	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Citation metadata “content="10.1111/jsr.14205"” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ published_references ARRAY stores doi:10.1111/jsr.14205 as the primary open-access outcomes paper for the SleepQuest resource.	Response for Published referencesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Notes Recommended	Primary public cohort summary is the open-access outcomes paper (DOI 10.1111/jsr.14205). Project website DNS was not resolvable from the population environment (Apr 2026); Bristol Pure catalogue page was archived as secondary web context. total_n uses the Spring 2020 (T1) analytic sample with complete minimum dataset (n=3306) per Table 1. Deactivated Aug 2026 (portfolio review): COVID-era web-survey cohort completed in 2022; no ongoing collection or recontact infrastructure, so it fails the industry-utility test on all four criteria.	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Correspondence footnote “Victoria Grace Gabb, Institute of Clinical Neurosciences, Bristol Medical School, Learning & Research Building, Southmead Hospital, University of Bristol, Bristol BS10 5NB, UK.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Notes additionally record sleepquest.co.uk DNS resolution failure in the population environment and that total_n follows the T1 complete minimum-dataset analytic cohort (n=3306).	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	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “Participants were provided with information online before consenting to take part.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Step1 identifiable=YES (named longitudinal participants). Step2 S251-only access=NO. Step3 recontactable=YES (follow-up invitations described in recruitment paragraph). Step4 interventional/TWiCs-specific consent=NO for this observational questionnaire study → consent_level=3 per data-dictionary.md decision tree.	Response for Consent level (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Characterisation depth (axis) Required	2 — Standardised MH instruments	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Measures “The PHQ‑8 (Kroenke et al., 2009) is an eight‑item self‑report measure assessing depressive symptoms.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Cohort applies multiple validated self-report instruments (PHQ-8, GAD-7, PSQI, DBAS-16) without a stated SCID/MINI/SCAN research-grade diagnostic interview battery in the reviewed methods → characterisation_depth=2 per data-dictionary.md.	Response for Characterisation depth (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data availability (axis) Required	2 — Records + research data	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 DERIVED: hasResearch = has_questionnaire_data OR … = TRUE; hasBiological=FALSE; hasAdvanced=FALSE → data_availability=2 per data-dictionary.md derivation pseudocode.	Response for Data availability (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cohort map group (derived) Recommended	Group 3	Internal	Internal catalogue field	—	—
Population type Recommended	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). Web-survey cohort of UK adults recruited during COVID-19 lockdowns; data collection completed.	Response for Population typeAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Industry engagement status Recommended	Unknown	Not published	Searched — not published UNSOURCEABLE: industry engagement status is an organisational property of the custodian and is not publicly documented; default 'unknown' pending a cohort-owner meeting.	Response for Industry engagement statusAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Parent cohort / programme Recommended	No value held	No source yet	No citation linked to this field yet.	Response for Parent cohort / programmeAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TWiCs eligible Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: observational cohort without described within-cohort randomised intervention consent (consent_level<4).	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	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Measures “The Pittsburgh Sleep Quality Index (PSQI) is a self‑report, validated questionnaire designed to assess multiple aspects of sleep over the previous month (Buysse et al., 1989).” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Questionnaire / interviewAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cognitive testing Recommended	No	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Table 1 “Dementia/cognitive impairment, <em>n (%)</em>” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ FALSE per data-dictionary.md: reviewed methods describe self-report covariates and validated mood/sleep questionnaires, not administration of standardised cognitive test batteries (CANTAB/CogState etc.).	Response for Cognitive testingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Physical measures Recommended	No	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Exercise and daylight exposure “The number of days in the preceding week in which the participant had engaged in moderate to vigorous exercise (defined as activity that raises heart rate, increases breathing rate and makes them feel warmer) for ≥ 15 min was also captured.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ FALSE per data-dictionary.md has_physical_measures definition: measures are self-reported frequency/duration, not objective anthropometry/vitals/lab assays.	Response for Physical measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosamples Recommended	No	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ FALSE: reviewed Methods and Data Availability sections in the PMC HTML snapshot describe online questionnaires only; no biosample collection, biobank, or specimen assay pipeline is described.	Response for BiosamplesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genomic data Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no genotyping/sequencing described in reviewed SleepQuest methods HTML.	Response for Genomic dataAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Omics Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no proteomics/metabolomics/transcriptomics described.	Response for OmicsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no research imaging modalities described.	Response for ImagingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Wearable / sensor Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no wearable sensor data stream described (self-reported exercise frequency only).	Response for Wearable / sensorAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Digital phenotyping Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: REDCap-hosted questionnaires are active digital completion of research instruments, not passive digital phenotyping per data-dictionary.md.	Response for Digital phenotypingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked health records Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no NHS HES/GP linkage described for the SleepQuest archive in reviewed methods.	Response for Linked health recordsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosample types Recommended	No value held	Not published	NULL because has_biosamples=FALSE.	Response for Biosample typesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genotyping platform Recommended	No value held	Not published	NULL because has_genomic_data=FALSE.	Response for Genotyping platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging modalities Recommended	No value held	Not published	NULL because has_imaging_data=FALSE.	Response for Imaging modalitiesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Mental health measures Recommended	PHQ-8, GAD-7, PSQI, DBAS-16	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Measures “The Generalised Anxiety Disorder Questionnaire (GAD‑7)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Array lists PHQ-8, GAD-7, PSQI, DBAS-16 as named instruments in Measures subsections of the same HTML snapshot.	Response for Mental health measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Data subcategories

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

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

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Data subcategories

Recommended

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

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Consent and use permissions

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

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

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Consent and use permissions

Recommended

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

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Access pathways

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

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

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Access pathways

Recommended

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

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Within-cohort coverage

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

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

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Within-cohort coverage metrics

Recommended

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

No value held

No source yet

No citation linked to this field yet.

AccurateNeeds correctionNot sureDoes not apply

Linkage and access

Field	Current value	Evidence	Source evidence	Response	Notes / correction
NHS linkage Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE per reviewed methods (no HES linkage described).	Response for NHS linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
GP linkage Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no GP record linkage described.	Response for GP linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Death registry linkage Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no ONS mortality linkage described.	Response for Death registry linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Education linkage Recommended	No	Not published	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 FALSE: no education administrative linkage described.	Response for Education linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access mechanism Recommended	tre	Field-cited	DPUK Data Portal — SleepQuest cohort directory shell page https://portal.dementiasplatform.uk/CohortDirectory/Item?fingerPrintID=SleepQuest Section: HTML title “SleepQuest Cohort - DPUK Data Portal” Page: https://portal.dementiasplatform.uk/CohortDirectory/Item?fingerPrintID=SleepQuest DPUK cataloguing implies controlled TRE-style access for approved projects; data_access_mechanism set to tre per DPUK programme norms (not a direct open download).	Response for Data access mechanismAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TRE platform Recommended	Dementias Platform UK (DPUK) Data Portal	Field-cited	DPUK Data Portal — SleepQuest cohort directory shell page https://portal.dementiasplatform.uk/CohortDirectory/Item?fingerPrintID=SleepQuest Section: HTML title “DPUK Data Portal” Page: https://portal.dementiasplatform.uk/CohortDirectory/Item?fingerPrintID=SleepQuest	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 stable public data-dictionary URL extracted from the reviewed paper HTML or the DPUK directory shell snapshot alone.	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: DPUK application timelines not captured in the consulted snapshots.	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 fee schedule in consulted snapshots.	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	50+: 0.801; 18-29: 0.046; 30-49: 0.153	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Table 1 “18–29 years \| 152 (4.6)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ JSON bins computed as 152/3306, 505/3306, 2649/3306 for T1 rows in Table 1.	Response for Age distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Sex distribution Recommended	male: 0.25; female: 0.749	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Table 1 “Female \| 2475 (74.9)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ male share uses 826/3306 from adjacent Table 1 cell in the same row.	Response for Sex distributionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ethnicity distribution Recommended	asian: 0.009; white: 0.97; mixed_or_other: 0.021	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Summary “Participants were mostly female (73.8%), white (97.4%), and aged over 50 years (81.0%).” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ JSON uses rounded white share with residual 'mixed_or_other' capturing non-White categories in Table 1 for finer UI display.	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: Table 1 reports mean (SD) age at each wave but not a cohort median age in the reviewed HTML snapshot.	Response for Median ageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent female Recommended	74.88	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Table 1 “Female \| 2475 (74.9)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ percent_female=74.88 matches 2475/3306*100 rounded to two decimals.	Response for Percent femaleAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Percent non-white Recommended	2.60	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Summary “white (97.4%)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ percent_non_white=2.60 computed as 100-97.4 from abstract summary.	Response for Percent non-whiteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Geographic coverage Recommended	national	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “open to all UK adults over the age of 18 years.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ National online recruitment across UK → geographic_coverage=national.	Response for Geographic coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Follow-up duration Recommended	Apr 2020 – Dec 2022 (three survey waves)	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “Data were collected at two timepoints during periods of UK national lockdown (T1: 29/04/2020–13/05/2020; T2: 05/11/2020–02/12/2020), and a third timepoint that followed relaxation of all lockdown rules (T3: 05/12/2022–19/12/2022).” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Follow-up durationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Last data collection date Recommended	19 Dec 2022	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “T3: 05/12/2022–19/12/2022” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Last data collection dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment start date Recommended	29 Apr 2020	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “T1: 29/04/2020–13/05/2020” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ recruitment_start_date set to first day of first in-study collection window.	Response for Recruitment start dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Recruitment end date Recommended	19 Dec 2022	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 Section: Methods — Participants and study design “T3: 05/12/2022–19/12/2022” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ recruitment_end_date uses last day of final advertised data collection window as end of active fieldwork.	Response for Recruitment end dateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Diagnosis areas

Mental health diagnosis areas represented in this cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Diagnosis area: Major depressive disorder Recommended Confirm this diagnosis area applies and estimated N if shown.	Major depressive disorder · Mood Disorders	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 “The PHQ‑8 (Kroenke et al., 2009) is an eight‑item self‑report measure assessing depressive symptoms.” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Diagnosis area: Major depressive disorderAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Diagnosis area: Generalised anxiety disorder Recommended Confirm this diagnosis area applies and estimated N if shown.	Generalised anxiety disorder · Anxiety Disorders	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 “The Generalised Anxiety Disorder Questionnaire (GAD‑7)” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Diagnosis area: Generalised anxiety disorderAccurateNeeds 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	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 “The Pittsburgh Sleep Quality Index (PSQI) is a self‑report, validated questionnaire designed to assess multiple aspects of sleep over the previous month (Buysse et al., 1989).” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/	Response for Diagnosis area: Sleep disorders / insomniaAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Diagnosis area: Major depressive disorder

Recommended

Confirm this diagnosis area applies and estimated N if shown.

Major depressive disorder · Mood Disorders

Field-cited

Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024)
https://doi.org/10.1111/jsr.14205
“The PHQ‑8 (Kroenke et al., 2009) is an eight‑item self‑report measure assessing depressive symptoms.”
Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/

AccurateNeeds correctionNot sureDoes not apply

Diagnosis area: Generalised anxiety disorder

Recommended

Confirm this diagnosis area applies and estimated N if shown.

Generalised anxiety disorder · Anxiety Disorders

Field-cited

Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024)
https://doi.org/10.1111/jsr.14205
“The Generalised Anxiety Disorder Questionnaire (GAD‑7)”
Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/

AccurateNeeds correctionNot sureDoes not apply

Diagnosis area: Sleep disorders / insomnia

Recommended

Confirm this diagnosis area applies and estimated N if shown.

Sleep disorders / insomnia · Sleep Disorders

Field-cited

Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024)
https://doi.org/10.1111/jsr.14205
“The Pittsburgh Sleep Quality Index (PSQI) is a self‑report, validated questionnaire designed to assess multiple aspects of sleep over the previous month (Buysse et al., 1989).”
Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/

AccurateNeeds correctionNot sureDoes not apply

Linked sites

Sites contributing participants or data to this cohort.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Linked site: NIHR Bristol Biomedical Research Centre Recommended	NIHR Bristol Biomedical Research Centre · South West England	Field-cited	Blackman J et al. Sleep quality during and after COVID-19 lockdowns in the UK: SleepQuest (J Sleep Res 2024) https://doi.org/10.1111/jsr.14205 “NIHR Bristol Biomedical Research Centre, University of Bristol, Bristol, UK” Page: https://pmc.ncbi.nlm.nih.gov/articles/PMC11597021/ Cohort-site link uses NIHR Bristol BRC site id=8 as institutional delivery anchor matching author affiliation block.	Response for Linked site: NIHR Bristol Biomedical Research CentreAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Verification metadata

Internal catalogue status — for reference only.

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Verification status Recommended	ai_inferred	Internal	Internal catalogue field	—	—
Last verified Recommended	16 Apr 2026	Internal	Internal catalogue field	—	—
Data source Recommended	Populated Apr 2026 from Blackman et al. Journal of Sleep Research 2024 (DOI 10.1111/jsr.14205; PMC11597021 HTML snapshot), DPUK Data Portal cohort directory HTML shell (portal.dementiasplatform.uk), University of Bristol Pure research information page HTML snapshot, and docs/data-dictionary.md scoring rules.	Internal	Internal catalogue field	—	—