Evidence map›Paper›PMID 34178362›Full record

ArticleCanadian journal of kidney health and disease2021

Frailty Severity and Hospitalization After Dialysis Initiation.

David Clark, Kara Matheson, Benjamin West, Amanda Vinson, Kenneth West, Arsh Jain, Kenneth Rockwood, Karthik Tennankore

Open access · goldAbstract read
In one paragraph

Article in Canadian journal of kidney health and disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% of its field
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Frailty in Kidney Disease: A Comprehensive Review to Advance Its Clinical and Research Applications.American journal of kidney diseases : the official journal of the National Kidney Foundation · 2025
    Review
  9. Article
  10. Observational
  11. Article
  12. Article
  13. 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 at 2 institutions in 1 country.

David ClarkDepartment of Medicine, Dalhousie University, Halifax, NS, Canada.ORCID https://orcid.org/0000-0003-1105-3418
Kara MathesonDepartment of Medicine, Dalhousie University, Halifax, NS, Canada.
Benjamin WestDepartment of Engineering, Dalhousie University, Halifax, NS, Canada.
Amanda VinsonDepartment of Medicine, Dalhousie University, Halifax, NS, Canada.ORCID https://orcid.org/0000-0002-9345-5252
Kenneth WestDepartment of Medicine, Dalhousie University, Halifax, NS, Canada.
Arsh JainDepartment of Medicine, Western University, London, ON, Canada.
Kenneth RockwoodDepartment of Medicine, Dalhousie University, Halifax, NS, Canada.
Karthik TennankoreDepartment of Medicine, Dalhousie University, Halifax, NS, Canada.ORCID https://orcid.org/0000-0002-7919-6709
Dalhousie University · CAWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFrailty is associated with hospitalization and mortality among dialysis patients. To now, few studies have considered the degree of frailty as a predictor of hospitalization.

objectiveWe evaluated whether

designRetrolective cohort study.

settingNova Scotia, Canada. PATIENTS: Consecutive adult, chronic dialysis patients who initiated dialysis from January 1, 2009 to June 30, 2014, (last follow-up June, 2015).

methodsFrailty Severity, as determined by the 7-point Clinical Frailty Scale (CFS, ranging from 1 = very fit to 7 = severely frail), was measured at dialysis initiation and treated as continuous and in categories (CFS scores of 1-3, 4/5, and 6/7). Hospitalization was characterized by cumulative time admitted to hospital (proportion of days admitted/time at risk) and by the joint risk of hospitalization and death. Time at risk included time in hospital after dialysis initiation and patients were followed until transplantation or death.

resultsOf 647 patients (mean age: 62 ± 15), 564 (87%) had CFS scores. The mean CFS score was 4 ("corresponding to "vulnerable") ± 2 ("well" to "moderately frail"). In an adjusted negative binomial regression model, moderate-severely frail patients (CFS 6/7) had a >2-fold increased risk of cumulative time admitted to hospital compared to the lowest CFS category (IRR = 2.18, 95% confidence interval [CI] = 1.31-3.63). In the joint model, moderate-severely frail patients had a 61% increase in the relative hazard for hospitalization (hazard ratio [HR] = 1.61, 95% CI = 1.29-2.02) and a 93% increase in the relative hazard for death compared to the lowest CFS category (HR = 1.93, 95% CI = 1.16-3.22). LIMITATIONS: Potential unknown confounders may have affected the association between frailty severity and hospitalization given observational study design. The CFS is subjective and different clinicians may grade frailty severity differently or misclassify patients on the basis of limited availability.

conclusionsAmong incident dialysis patients, a higher frailty severity as defined by the CFS is associated with both an increased risk of cumulative time admitted to hospital and joint risk of hospitalization and death.

Indexed as

clinical frailty scaledialysisfrailty severityhospitalizationmortality

Identifiers

PMID34178362
PMCPMC8202313
OpenAlexW3169661598

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.