Evidence map›Paper›PMID 30083367›Full record

ArticleCanadian journal of kidney health and disease2018

Is the Kidney Donor Risk Index a Useful Tool in Non-US Patients?

Ann Young, Greg A Knoll, Eric McArthur, Stephanie N Dixon, Amit X Garg, Charmaine E Lok, Ngan N Lam, S Joseph Kim

Abstract read
In one paragraph

Article in Canadian journal of kidney health and disease, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Using Information Available at the Time of Donor Offer to Predict Kidney Transplant Survival Outcomes: A Systematic Review of Prediction Models.Transplant international : official journal of the European Society for Organ Transplantation · 2022
    Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. 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

8 authors.

Ann YoungDepartment of Medicine, University of Toronto, ON, Canada.
Greg A KnollInstitute for Clinical Evaluative Sciences, Toronto, ON, Canada.
Eric McArthurInstitute for Clinical Evaluative Sciences, Toronto, ON, Canada.
Stephanie N DixonInstitute for Clinical Evaluative Sciences, Toronto, ON, Canada.
Amit X GargInstitute for Clinical Evaluative Sciences, Toronto, ON, Canada.
Charmaine E LokDepartment of Medicine, University of Toronto, ON, Canada.
Ngan N LamDivision of Nephrology, University of Alberta, Edmonton, Canada.
S Joseph KimDepartment of Medicine, University of Toronto, ON, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDeceased donor kidney allocation in the United States is guided by the Kidney Donor Risk Index (KDRI). The generalizability of the KDRI beyond the United States has not been widely studied.

objectiveTo assess the generalizability of the KDRI in a cohort of non-US (Canadian) deceased donor kidney transplant recipients.

designPopulation-based retrospective cohort study.

settingOntario, Canada. PATIENTS: Recipients of deceased donor kidneys from January 1, 2005, to March 31, 2011.

methodsUsing administrative data, we analyzed a cohort of deceased donor kidney recipients in Ontario, Canada. The Kaplan-Meier method and Cox proportional hazards models were used to assess the relationship between KDRI and the outcomes of graft loss and death. KDRI was modeled continuously and categorically. The ability of models with KDRI to predict recipient outcomes beyond donor age was also explored. Model discrimination was assessed using

resultsA total of 1299 consecutive deceased donor kidney transplant recipients were included. The median follow-up was 5.5 years. Mean donor age increased from 27 to 64 years across ascending KDRI quintiles. The adjusted relative hazards (95% confidence interval) for total graft loss from Q2 to Q5 (referent = Q1) were 1.27 (0.89-1.80), 1.58 (1.13-2.22), 1.43 (1.01-2.02), and 2.15 (1.54-2.99), respectively. Increased relative hazards across KDRI quintiles were also observed for death-censored graft loss, but not death with graft function. All-cause mortality was increased for the highest KDRI quintile only. In this cohort, a model with KDRI performed better than a model with donor age alone ( LIMITATIONS: Large health care databases may have precluded the complete capture of covariate data.

conclusionsIn conclusion, the KDRI is generalizable to Canadian patients in Ontario and may help inform risk assessment beyond donor age. The performance of KDRI in other non-US settings, and the need for additional model refinement, warrants further study.

Indexed as

generalizabilityKidney Donor Risk Indexrisk assessment

Identifiers

PMID30083367
PMCPMC6073818

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.