Evidence map›Paper›PMID 38683569›Full record

ArticleHepatology (Baltimore, Md.)2025

Waitlisting and liver transplantation for MetALD in the United States: An analysis of the UNOS national registry.

Pedro Ochoa-Allemant, Marina Serper, Roy X Wang, Helen Tang, Bachir Ghandour, Sarem Khan, Nadim Mahmud

Abstract read
In one paragraph

Article in Hepatology (Baltimore, Md.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Steatotic liver disease in Latin America: current views and perspectives.Nature reviews. Gastroenterology & hepatology · 2026
    Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Impact of acuity circles policy on ABO blood type-related waitlist outcomes in liver transplantation.Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society · 2026
    Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Alcohol-related liver disease and access to liver transplantation: where we stand and where we should go.Transplant international : official journal of the European Society for Organ Transplantation · 2026
    Article
  16. Review
  17. Review
  18. Article
  19. MetALD: New Perspectives on an Old Overlooked Disease.Liver international : official journal of the International Association for the Study of the Liver · 2025
    Review
  20. Trends in candidate hepatitis C virus nucleic acid amplification test (NAT)+ listing and associated impacts on liver transplantation waitlist outcomes.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2025
    Article
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

7 authors.

Pedro Ochoa-AllemantDepartment of Medicine, Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0002-7826-655
Marina SerperDepartment of Medicine, Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0003-4899-2160
Roy X WangDepartment of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0002-9244-1633
Helen TangDepartment of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Bachir GhandourDepartment of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0002-7303-7504
Sarem KhanDepartment of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Nadim MahmudDepartment of Medicine, Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0003-1889-3954

Funding

CLINICAL EPIDEMIOLOGY TRAINING IN GASTROENTEROLOGYT32DK007740 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI James D Lewis · 1997 to 2026
$9.2M
Improving Surgical Risk Prediction and Decision Making among Patients with CirrhosisK08DK124577 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI MAHMUD, NADIM · 2021 to 2025
$835k
Understanding Patient Preferences for Surgical Management in the Setting of Cirrhosis: A Mixed-Methods ApproachR03DK134794 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI MAHMUD, NADIM · 2024 to 2025
$244k
NIDDK NIH HHS K08 DK124577NIDDK NIH HHS R03 DK134794NIDDK NIH HHS T32 DK007740
6 · The paper itself

Abstract

BACKGROUND AND

aimsThe new steatotic liver disease (SLD) nomenclature introduced metabolic and alcohol-associated liver disease (MetALD), describing the intersection of metabolic dysfunction-associated steatotic liver disease and alcohol-associated liver disease. Waitlisting and liver transplantation for MetALD are not well defined. We aimed to develop and validate an algorithm for identifying SLD phenotypes and assessing trends in waitlisting and transplant outcomes. APPROACH AND

resultsWe conducted a retrospective cohort study using the United Network for Organ Sharing registry, supplemented with detailed single-center data. We developed 5 candidate algorithms for SLD classification and calculated their diagnostic performance. Trends in waitlist registrations and transplants were estimated, and competing risk analyses and Cox regression models were conducted to assess waitlist removal and posttransplant outcomes among SLD phenotypes. The best-performing algorithm demonstrated substantial agreement (weighted kappa, 0.62) for SLD phenotypes, with acceptable sensitivity (73%) for MetALD. Between 2002 and 2022, waitlist registrations and transplants for MetALD increased 2.9-fold and 3.3-fold, respectively. Since 2013, there has been a significant increase in the absolute number of waitlist registrations (122 per year; 95% CI, 111-133) and transplants (107 per year; 95% CI, 94-120) for MetALD. Patients with MetALD experienced higher waitlist removal (adjusted subdistribution hazard ratio, 1.10; 95% CI, 1.03-1.17), all-cause mortality (adjusted hazard ratio, 1.13; 95% CI, 1.03-1.23), and graft failure (adjusted hazard ratio, 1.12; 95% CI, 1.03-1.21) than those with alcohol-associated liver disease.

conclusionsWe developed and validated an algorithm for identifying SLD phenotypes in UNOS. MetALD is the third leading etiology among those waitlisted and underwent transplantation, exhibiting worse pretransplantation and posttransplantation outcomes compared to alcohol-associated liver disease. Identifying and addressing factors determining poor outcomes is crucial in this patient population.

Indexed as

Fatty LiverLiver Diseases, AlcoholicLiver TransplantationWaiting ListsAdultAlgorithmsFemaleHumansMaleMiddle AgedRegistriesRetrospective StudiesUnited States

Identifiers

PMID38683569
PMCPMC12036730

What OpenQuestion holds

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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 OpenQuestion graph.