Cohort validation pack

National Maternity Dataset

Maternity Services Data Set (MSDS)

Generated 6 Oct 2026, 10:37 · ID 50

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	36 of 67 reviewable fields are cited to a source (54%) · 8 with no source yet · 23 searched — not published · 28 with no value held	Computed	No citation linked to this field yet.	Response for Field-level source coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Identity and ownership

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Short name Required	National Maternity Dataset	Field-cited	NHS England Digital — Maternity Services Data Set (MSDS) hub https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set Section: Page title “Maternity Services Data Set (MSDS)” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set DIGIT short label National Maternity Dataset is the programme-facing name for the MSDS asset in seed comments and population plan; canonical NHS title remains MSDS.	Response for Short nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Full name Required	Maternity Services Data Set (MSDS)	Field-cited	NHS England Digital — Maternity Services Data Set (MSDS) hub https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set Section: Page title “Maternity Services Data Set (MSDS)” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set	Response for Full nameAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Managing organisation Recommended	NHS England	Field-cited	NHS England Digital — About the Maternity Services Data Set https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set Section: Summary / stewardship “sent to NHS England for analysis purposes.” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set NHS England is the national steward receiving MSDS flows; managing_organisation set to NHS England.	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 as a single recruiting site: MSDS is a national NHS administrative collection across trusts, not a single-site cohort. primary_site_id remains NULL by design after NHS hub, About MSDS, IJPDS profile, and HDR Gateway dataset 847 review.	Response for Primary siteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Website URL Recommended	https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set	Field-cited	NHS England Digital — Maternity Services Data Set (MSDS) hub https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set Section: Canonical MSDS URL “https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set	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 cohort PI contact field on MSDS hub; operational enquiries route to generic NHS Digital enquiries text on About MSDS without naming a research custodian for this entity record.	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: email addresses on NHS pages are obfuscated in downloaded HTML snapshot; no stable public mailbox committed to seed.	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	Patient-level administrative maternity data for NHS-funded maternity services in England: booking through postnatal discharge, submitted monthly for national monitoring and secondary uses. DIGIT entry emphasises perinatal mental health uses where MSDS is analysed alongside specialist mental health service data (for example MHSDS).	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: DC.Description / Introduction (HTML meta) “The Maternity Services Dataset (MSDS) is a comprehensive administrative dataset, capturing detailed information on NHS-funded maternity services in England. It encompasses the full maternity care pathway.” Page: https://ijpds.org/article/view/3007 DIGIT-facing description adds explicit perinatal mental health analysis context consistent with cohort notes and MHSDS linkage use-cases described in the same resource profile Methods section.	Response for DescriptionAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N Required	567,708	Field-cited	ONS — Birth summary tables, England and Wales: 2024 https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/livebirths/bulletins/birthsummarytablesenglandandwales/2024 Section: Live births narrative “In 2024, there were 567,708 live births in England” Page: https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/livebirths/bulletins/birthsummarytablesenglandandwales/2024 total_n scaled to latest published England live birth count as an order-of-magnitude proxy for annual NHS-funded maternity throughput feeding MSDS (not a row-level census of MSDS itself).	Response for Total NAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Total N qualifier Recommended	per_year_intake	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Total N Qualifiers (markdown table) “The figure represents the annual intake, not a cumulative total.” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set total_n is set to latest published England live births (ONS) as an annual throughput proxy for MSDS scope; qualifier per_year_intake replaces legacy births_per_year token.	Response for Total N qualifierAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Year established Recommended	2015	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: DC.Description / Introduction (HTML meta) “There are two versions of the dataset: MSDS V1.5, introduced in May 2015, and the updated MSDS V2.0, which replaced it in April 2019.” Page: https://ijpds.org/article/view/3007 year_established stores calendar year 2015 for first national MSDS version go-live (May 2015).	Response for Year establishedAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Active cohort Recommended	Yes	Field-cited	NHS England Digital — Maternity Services Data Set (MSDS) hub https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set Section: MSDS v2.0 navigation “Implementing the Maternity Services Data Set (MSDS) v2.0 tools and guidance” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set Current operational v2.0 implementation pages on NHS England Digital indicate an ongoing mandated national collection → is_active TRUE.	Response for Active cohortAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Ongoing recruitment Recommended	No	Not published	Schema default FALSE; MSDS is not a recruiting research cohort — confirmed FALSE without separate scalar column in seed INSERT.	Response for Ongoing recruitmentAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Refreshed cohort Recommended	No	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: DC.Description / Methods “Data is submitted monthly by trusts, enabling NHS England to generate a national picture of maternity activity and publish official statistics.” Page: https://ijpds.org/article/view/3007 Administrative dataset refreshes via monthly provider submissions, but is_refreshed in DIGIT schema marks longitudinal cohort re-assessment waves for consented participants → 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 applicable for consent_level 2 administrative dataset (no recontact model).	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 applicable for administrative throughput dataset.	Response for Retention rateAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Published references Recommended	10.23889/ijpds.v8i6.3007	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: DC.Identifier.DOI (HTML meta) “10.23889/ijpds.v8i6.3007” Page: https://doi.org/10.23889/ijpds.v8i6.3007	Response for Published referencesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Notes Recommended	Perinatal mental health screening, referral and outcome indicators may be derived within MSDS or through linkage to MHSDS for specialist perinatal mental health care; see IJPDS resource profile for linkage capabilities.	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: Conclusions “Although it holds potential for research, uptake has been limited to date due to its relative novelty.” Page: https://ijpds.org/article/view/3007 Notes field summarises MHSDS linkage use-case for perinatal mental health service analytics consistent with Methods linkage sentence.	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	NHS England Digital — About the Maternity Services Data Set https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set Section: Summary “As a secondary uses data set MSDS re-uses clinical and operational data for purposes other than direct patient care.” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set Step 1 identifiable patient-level records YES (MSDS patient-level). Step 2 access without individual research consent under national secondary uses / Section 251-style NHS control of flow YES (secondary uses data set). Steps 3–4 recontact/interventional trial consent not the access model for the administrative extract → consent_level 2 per docs/data-dictionary.md tree.	Response for Consent level (axis)AccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Characterisation depth (axis) Required	1 — Routine EHR	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: DC.Description / Methods “MSDS is a secondary-use dataset, repurposing clinical and operational data primarily for monitoring, commissioning, and auditing purposes.” Page: https://ijpds.org/article/view/3007 Step 1 of characterisation_depth tree: no research-protocol battery of validated MH instruments; routine/administrative maternity records only → characterisation_depth 1 per data-dictionary.md.	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	DIGIT docs/data-dictionary.md (internal authority) Section: Summary “As a secondary uses data set MSDS re-uses clinical and operational data for purposes other than direct patient care.” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set DERIVED per docs/data-dictionary.md Data Availability pseudocode applied to cohort SQL: all ten modality booleans are FALSE (has_linked_health_records FALSE under NHS-dataset overlap rule), therefore hasResearch/hasBiological/hasAdvanced are all false → data_availability=1.	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). National administrative maternity services dataset.	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	DIGIT docs/data-dictionary.md (internal authority) Section: Schema table (markdown) “A cohort is TWiCs-eligible if participants have given active research consent (consent_level = 4) AND the cohort infrastructure supports randomisation within the cohort.” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set consent_level=2 administrative access → twics_eligible remains default FALSE.	Response for TWiCs eligibleAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Data modalities

Field	Current value	Evidence	Source evidence	Response	Notes / correction
Questionnaire / interview Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: DC.Description / Methods (HTML meta) “MSDS is a secondary-use dataset, repurposing clinical and operational data primarily for monitoring, commissioning, and auditing purposes.” Page: https://ijpds.org/article/view/3007 No research-protocol application of named validated MH questionnaires described in reviewed MSDS profile meta text → has_questionnaire_data FALSE per data-dictionary.md TRUE-only-when-research-instrument rule.	Response for Questionnaire / interviewAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Cognitive testing Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Cohort Data Type Flags (markdown table) “Participants completed a self-report questionnaire about their cognition (that is questionnaire data, not cognitive data).” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set MSDS administrative profile (IJPDS secondary-use description) does not include standardised cognitive test battery for research → FALSE when column applies.	Response for Cognitive testingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Physical measures Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Cohort Data Type Flags (markdown table) “Physical health information is only available from linked NHS records (that is `has_linked_health_records`).” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set Conservative FALSE: reviewed MSDS summaries do not document a dedicated research physical measurement programme separate from routine maternity documentation and DIGIT has_linked_health_records is false for MSDS itself.	Response for Physical measuresAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Biosamples Recommended	No	Field-cited	HDR UK Innovation Gateway — MSDS (Maternity Services Data Set) metadata https://healthdatagateway.org/dataset/847 Section: HDR Gateway dataset metadata (rendered HTML) “None/not available” Page: https://healthdatagateway.org/dataset/847 Value appears under the Associated BioSamples statistic card on the Gateway MSDS dataset page snapshot.	Response for BiosamplesAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Genomic data Recommended	No	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: Methods “MSDS is a secondary-use dataset, repurposing clinical and operational data primarily for monitoring, commissioning, and auditing purposes.” Page: https://ijpds.org/article/view/3007 No genotyping/sequencing component described in reviewed resource profile meta text → FALSE.	Response for Genomic dataAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Omics Recommended	No	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: Methods “MSDS is a secondary-use dataset, repurposing clinical and operational data primarily for monitoring, commissioning, and auditing purposes.” Page: https://ijpds.org/article/view/3007 No proteomics/metabolomics layer described for MSDS in reviewed summary → FALSE.	Response for OmicsAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging Recommended	No	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: Methods “MSDS is a secondary-use dataset, repurposing clinical and operational data primarily for monitoring, commissioning, and auditing purposes.” Page: https://ijpds.org/article/view/3007 No imaging archive described in reviewed MSDS profile meta text → FALSE.	Response for ImagingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Wearable / sensor Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Cohort Data Type Flags (markdown table) “Participants self-reported physical activity via questionnaire (that is questionnaire data).” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set MSDS does not include wearable sensor streams in reviewed IJPDS profile → FALSE.	Response for Wearable / sensorAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Digital phenotyping Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Cohort Data Type Flags (markdown table) “Participants completed a mobile app questionnaire (that is questionnaire data delivered digitally, not digital phenotyping).” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set No passive digital phenotyping stream described for MSDS in reviewed IJPDS profile → FALSE.	Response for Digital phenotypingAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Linked health records Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Cohort Data Type Flags / Overlap 2 (markdown table) “The cohort is an NHS dataset (e.g., CPRD, MHSDS) — those datasets ARE health records, they are not "linked to" health records.” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set MSDS is itself an NHS administrative dataset; per DIGIT overlap rule has_linked_health_records is FALSE while HES-capable linkage is recorded under has_nhs_linkage.	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 as non-NULL: no biosample types enumerated for MSDS beyond absence statements; remains NULL.	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: genomic platform not applicable (has_genomic_data FALSE).	Response for Genotyping platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Imaging modalities Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: imaging not applicable (has_imaging_data FALSE).	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 explicit TEXT[] list: NHS summary pages reviewed do not enumerate individual MH screening tools; mental health signal is via routine coded maternity activity and downstream MHSDS linkage per cohort description.	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	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: DC.Description / Methods (HTML meta) “Patient identifiers enable linkage with other NHS datasets, such as Hospital Episode Statistics (HES).” Page: https://ijpds.org/article/view/3007 DIGIT uses has_nhs_linkage to denote HES-linkage feasibility described for MSDS identifiers.	Response for NHS linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
GP linkage Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: DC.Description / Methods (HTML meta) “Patient identifiers enable linkage with other NHS datasets, such as Hospital Episode Statistics (HES).” Page: https://ijpds.org/article/view/3007 Reviewed MSDS resource profile names HES linkage explicitly and does not name GP record linkage for MSDS identifiers in the same meta text → has_gp_linkage FALSE.	Response for GP linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Death registry linkage Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Reviewed MSDS summaries “MSDS is a secondary-use dataset, repurposing clinical and operational data primarily for monitoring, commissioning, and auditing purposes.” Page: https://ijpds.org/article/view/3007 FALSE: no death-registry linkage statement located beyond this administrative secondary-use framing.	Response for Death registry linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Education linkage Recommended	No	Field-cited	DIGIT docs/data-dictionary.md (internal authority) Section: Reviewed MSDS summaries “MSDS is a secondary-use dataset, repurposing clinical and operational data primarily for monitoring, commissioning, and auditing purposes.” Page: https://ijpds.org/article/view/3007 FALSE: no education-record linkage statement located beyond this administrative secondary-use framing.	Response for Education linkageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data access mechanism Recommended	tre	Field-cited	NHS England Digital — Data Access Request Service (DARS) https://digital.nhs.uk/services/data-access-request-service-dars Section: Meta description “The Data Access Request Service (DARS) can offer clinicians, researchers and commissioners the data required to help improve NHS services.” Page: https://digital.nhs.uk/services/data-access-request-service-dars Approved flows for national NHS datasets route via DARS into controlled NHS England environments → data_access_mechanism tre per enumerated access types.	Response for Data access mechanismAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
TRE platform Recommended	NHS England Secure Data Environment	Field-cited	HDR UK Innovation Gateway — MSDS (Maternity Services Data Set) metadata https://healthdatagateway.org/dataset/847 Section: Gateway structured text (embedded JSON) “The NHS England Secure Data Environment (SDE) is a secure data and research analysis platform.” Page: https://healthdatagateway.org/dataset/847 tre_platform string normalised to NHS England Secure Data Environment to match HDR custodian naming and other DIGIT national NHS entries.	Response for TRE platformAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Data dictionary URL Recommended	https://archive.datadictionary.nhs.uk/DD%20Release%20March%202025/data_sets/clinical_data_sets/maternity_services_data_set.html	Field-cited	NHS Data Dictionary — Maternity Services Data Set (March 2025 archive) https://archive.datadictionary.nhs.uk/DD%20Release%20March%202025/data_sets/clinical_data_sets/maternity_services_data_set.html Section: NHS Data Dictionary landing “Maternity Services Data Set” Page: https://archive.datadictionary.nhs.uk/DD%20Release%20March%202025/data_sets/clinical_data_sets/maternity_services_data_set.html	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: DARS overview downloaded for this pass does not publish a single numeric SLA for MSDS extracts suitable for data_access_timeline_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: cost not standardised on reviewed NHS DARS overview HTML snapshot.	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 in seed scope: no public aggregate age JSON located on MSDS hub, About MSDS, IJPDS meta-description, HDR Gateway 847 HTML snapshot, or ONS births bulletin beyond headline counts; field remains NULL.	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 in seed scope: maternity cohort is pregnancy-centred; no sex distribution table extracted from reviewed MSDS summary pages; field remains NULL.	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 in seed scope: ethnicity breakdown not present in reviewed MSDS summary sources; field remains NULL.	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: maternal age distribution not extracted into this field from ONS bulletin headline or MSDS summaries.	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: pregnancy cohort is all pregnant people in pathway statistics; percentage female not a meaningful stored field here → NULL.	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: ethnicity percentages not copied from reviewed MSDS summary sources into this scalar.	Response for Percent non-whiteAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Geographic coverage Recommended	national	Field-cited	NHS England Digital — About the Maternity Services Data Set https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set Section: How the MSDS is used “The MSDS information captured from NHS-funded maternity services, provides reliable information for:” Page: https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/maternity-services-data-set/about-the-maternity-services-data-set NHS-funded maternity services in England → geographic_coverage national (England) per data-dictionary.md national definition.	Response for Geographic coverageAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Follow-up duration Recommended	Ongoing (monthly national submissions; MSDS v1.5 then v2.0 from April 2019)	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: DC.Description / Introduction (HTML meta) “There are two versions of the dataset: MSDS V1.5, introduced in May 2015, and the updated MSDS V2.0, which replaced it in April 2019.” Page: https://ijpds.org/article/view/3007 Seeded followup_duration text summarises ongoing monthly national collection with version transition; wording in cohort SQL avoids inline citations per data quality rule 6b.	Response for Follow-up durationAccurateNeeds correctionNot sureDoes not apply No response selected	No notes
Last data collection date Recommended	No value held	Not published	Searched — not published UNSOURCEABLE: no single last_data_collection_date published on reviewed MSDS summary pages without pulling official statistics release calendar.	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 data set does not recruit participants; recruitment date fields not applicable → NULL.	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 a recruiting cohort; NULL.	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: Perinatal mental health Recommended Confirm this diagnosis area applies and estimated N if shown.	Perinatal mental health · Perinatal	Field-cited	Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: Results “Data quality varies due to the classification of variables as mandatory, required, or optional.” Page: https://ijpds.org/article/view/3007 estimated_n left NULL because public summaries do not publish a single audited count of perinatal mental health episodes within MSDS. Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023 https://doi.org/10.23889/ijpds.v8i6.3007 Section: Results (DC.Description meta) “The dataset includes demographic, clinical, and organisational information for each pregnant person and their baby, such as appointment dates, diagnoses, delivery details, birthweight, and neonatal admissions.” Page: https://ijpds.org/article/view/3007 Diagnosis-area link uses DIGIT diagnosis_areas.id=23 Perinatal mental health (F53, O99.3) as the umbrella for maternity-recorded perinatal mental health activity and related analyses.	Response for Diagnosis area: Perinatal mental healthAccurateNeeds correctionNot sureDoes not apply No response selected	No notes

Field

Current value

Evidence

Source evidence

Response

Notes / correction

Diagnosis area: Perinatal mental health

Recommended

Confirm this diagnosis area applies and estimated N if shown.

Perinatal mental health · Perinatal

Field-cited

Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023
https://doi.org/10.23889/ijpds.v8i6.3007
Section: Results
“Data quality varies due to the classification of variables as mandatory, required, or optional.”
Page: https://ijpds.org/article/view/3007
estimated_n left NULL because public summaries do not publish a single audited count of perinatal mental health episodes within MSDS.
Stewart, Hall & Harron — Data Resource Profile: Maternity Services Dataset (MSDS), IJPDS 2023
https://doi.org/10.23889/ijpds.v8i6.3007
Section: Results (DC.Description meta)
“The dataset includes demographic, clinical, and organisational information for each pregnant person and their baby, such as appointment dates, diagnoses, delivery details, birthweight, and neonatal admissions.”
Page: https://ijpds.org/article/view/3007
Diagnosis-area link uses DIGIT diagnosis_areas.id=23 Perinatal mental health (F53, O99.3) as the umbrella for maternity-recorded perinatal mental health activity and related analyses.

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	16 Apr 2026	Internal	Internal catalogue field	—	—
Data source Recommended	Verified Apr 2026 from NHS England Digital MSDS hub and About MSDS pages; NHS Data Dictionary MSDS (March 2025 archive); IJPDS data resource profile (10.23889/ijpds.v8i6.3007); ONS live births bulletin (England, 2024); HDR UK Gateway dataset 847; NHS England DARS overview; ClinicalTrials.gov v2 API (no MSDS-as-study registration); ISRCTN XML API (no MSDS registry hit); DIGIT docs/data-dictionary.md.	Internal	Internal catalogue field	—	—