Evidence map›Paper›PMID 36843871›Full record

ArticleBMJ surgery, interventions, & health technologies2023

Distinct phenotypes of kidney transplant recipients aged 80 years or older in the USA by machine learning consensus clustering.

Charat Thongprayoon, Caroline C Jadlowiec, Shennen A Mao, Michael A Mao, Napat Leeaphorn, Wisit Kaewput, Pattharawin Pattharanitima, Pitchaphon Nissaisorakarn, Matthew Cooper, Wisit Cheungpasitporn

Abstract read
In one paragraph

Article in BMJ surgery, interventions, & health technologies, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Optimizing kidney allocation: challenges and solutions.Current opinion in organ transplantation · 2025
    Review
  5. Article
  6. 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

10 authors.

Charat ThongprayoonDivision of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA.
Caroline C JadlowiecDivision of Transplant Surgery, Mayo Clinic, Phoenix, Arizona, USA.
Shennen A MaoDivision of Transplant Surgery, Mayo Clinic, Jacksonville, Florida, USA.
Michael A MaoDivision of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Jacksonville, Florida, USA.
Napat LeeaphornDivision of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Jacksonville, Florida, USA.
Wisit KaewputDepartment of Military and Community Medicine, Phramongkutklao College of Medicine, Bangkok, Thailand.
Pattharawin PattharanitimaDepartment of Internal Medicine, Thammasat University, Pathum Thani, Thailand.
Pitchaphon NissaisorakarnDepartment of Medicine, Harvard Medical School, Boston, Massachusetts, USA.
Matthew CooperDivision of Transplant, Department of Surgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA.
Wisit CheungpasitpornDivision of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA.ORCID 0000-0001-9954-9711

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: This study aimed to identify distinct clusters of very elderly kidney transplant recipients aged ≥80 and assess clinical outcomes among these unique clusters. Design: Cohort study with machine learning (ML) consensus clustering approach. Setting and participants: All very elderly (age ≥80 at time of transplant) kidney transplant recipients in the Organ Procurement and Transplantation Network/United Network for Organ Sharing database database from 2010 to 2019. Main outcome measures: Distinct clusters of very elderly kidney transplant recipients and their post-transplant outcomes including death-censored graft failure, overall mortality and acute allograft rejection among the assigned clusters. Results: Consensus cluster analysis was performed in 419 very elderly kidney transplant and identified three distinct clusters that best represented the clinical characteristics of very elderly kidney transplant recipients. Recipients in cluster 1 received standard Kidney Donor Profile Index (KDPI) non-extended criteria donor (ECD) kidneys from deceased donors. Recipients in cluster 2 received kidneys from older, hypertensive ECD deceased donors with a KDPI score ≥85%. Kidneys for cluster 2 patients had longer cold ischaemia time and the highest use of machine perfusion. Recipients in clusters 1 and 2 were more likely to be on dialysis at the time of transplant (88.3%, 89.4%). Recipients in cluster 3 were more likely to be preemptive (39%) or had a dialysis duration less than 1 year (24%). These recipients received living donor kidney transplants. Cluster 3 had the most favourable post-transplant outcomes. Compared with cluster 3, cluster 1 had comparable survival but higher death-censored graft failure, while cluster 2 had lower patient survival, higher death-censored graft failure and more acute rejection. Conclusions: Our study used an unsupervised ML approach to cluster very elderly kidney transplant recipients into three clinically unique clusters with distinct post-transplant outcomes. These findings from an ML clustering approach provide additional understanding towards individualised medicine and opportunities to improve care for very elderly kidney transplant recipients.

Indexed as

health technologymethodologyoutcomes researchtechnology

Identifiers

PMID36843871
PMCPMC9944353

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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.