Evidence map›Paper›PMID 39904832›Full record

ArticleObesity surgery2025

Assessing the FAIRness of Metabolic Bariatric Surgery Registries: a Comparative Analysis of Data Dictionaries from the UK, Germany, France, Netherlands, Norway, and Sweden.

Bart Torensma, Mohamed Hany, Jodok M Fink, Ahmed R Ahmed, Ronald S L Liem, Andrea Lazzati, François Pattou, Johan Ottosson, Martijn G Kersloot

Abstract readComparative Study
In one paragraph

Article in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Bart TorensmaLeiden University Medical Center, Leiden, Netherlands. bart@torensmaresearch.nl.
Mohamed HanyMedical Research Institute, Alexandria University, Alexandria, Egypt.
Jodok M FinkDepartment of General and Visceral Surgery, Center for Surgery, Medical Center, University of Freiburg, Hugstetter Str. 55, Freiburg, Germany.
Ahmed R AhmedImperial College London, London, UK.
Ronald S L LiemNederlandse Obesitas Kliniek West, Den Haag, Netherlands.
Andrea LazzatiAvicenne Hospital, Bobigny, France.
François PattouCentre Hospitalier Universitaire de Lille, Lille, France.
Johan OttossonDepartment of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Martijn G KerslootAmsterdam UMC location University of Amsterdam, Department of Medical Informatics, Meibergdreef 9, Amsterdam, Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study is part of an initiative to improve the FAIRness (Findability, Accessibility, Interoperability, Reusability) of metabolic bariatric surgery (MBS) registries globally. It explores the extent to which European registry data can be manually integrated without first making them FAIR and assesses these registries' current level of FAIRness. The findings establish a baseline for evaluation and provide recommendations to enhance MBS data management practices.

methodsData dictionaries from five national MBS registries in Germany, France, the Netherlands, the UK, and a combined registry for Scandinavia (Norway and Sweden) were evaluated regarding their ability to manually integrate registry datasets with one another. The FAIR Data Maturity Model from the Research Data Alliance (RDA) FAIR Data Maturity Model Working Group was used to assess the FAIRness of both metadata and data of the registries.

resultsThe registries showed significant variability in variables and coding structures, with inconsistent numerical formats and without linkage to international standards such as SNOMED CT, LOINC, or NCIt, making data integration labor-intensive and assumption-heavy. Despite the presence of data dictionaries, all registries failed the FAIR assessment because machine-readable data was unavailable, and only human-readable metadata was available in the form of data dictionaries in a spreadsheet.

conclusionOur study reveals significant inconsistencies in data structuring and a failure to comply with the FAIR Principles, which limit effective data analysis and comparison. This emphasizes the critical need for standardized data management practices. We recommend four next steps to improve the FAIRness of MBS registries: (1) annotate data elements using standardized terminology systems, (2) deposit registry-level metadata in a repository, (3) request globally unique and persistent identifiers for datasets, and (4) define access restrictions.

Indexed as

Bariatric SurgeryObesity, MorbidRegistriesEuropeFranceGermanyHumansNetherlandsNorwaySwedenUnited KingdomData modelingFAIRMetabolic bariatric surgeryRegistry

Identifiers

PMID39904832
PMCPMC11906509

What Socratic holds

Textmetadata
LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.