Evidence map›Paper›PMID 34934060›Full record

ArticleScientific reports2021

Red blood cell distribution width as a predictor of mortality among patients regularly visiting the nephrology outpatient clinic.

Kyung Don Yoo, Hyung Jung Oh, Sehoon Park, Min Woo Kang, Yong Chul Kim, Jae Yoon Park, Jeonghwan Lee, Jong Soo Lee, Dong Ki Kim, Chun Soo Lim and 3 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.6field-weighted citation impact, top 28% 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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Observational
  2. Article
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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

13 authors at 8 institutions in 3 countries.

Kyung Don Yoo *Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
Hyung Jung Oh *Department of Nephrology, Sheikh Khalifa Specialty Hospital, Ras al Khaimah, United Arab Emirates.
Sehoon ParkDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
Min Woo KangDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
Yong Chul KimDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
Jae Yoon ParkDepartment of Internal Medicine, Dongguk University College of Medicine, Dongguk University Ilsan Hospital, Seoul, Korea.
Jeonghwan LeeDepartment of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea.
Jong Soo LeeDepartment of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.
Dong Ki KimDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
Chun Soo LimDepartment of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea.
Yon Su KimDepartment of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
Jung Pyo LeeDepartment of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea. nephrolee@gmail.com.
Korean Association for the study of Renal Anemia and artificial Intelligence (KARAI)
Seoul National University Hospital · KRSNUH SMG-SNU Boramae Medical Center · KRDongguk University Ilsan Hospital · KRNew Generation University College · ETSeoul National University · KRShaikh Khalifa Medical City · AEUlsan College · KRUniversity of Ulsan · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The association between increased red blood cell distribution width (RDW) and mortality among patients treated on an outpatient basis in the nephrology outpatient clinic is unclear. Therefore, our study aimed to investigate the association between baseline and time-averaged RDW and mortality risk in patients treated in our nephrology outpatient clinic. Our multi-center retrospective analysis was based on data of 16,417 outpatient nephrology patients with available baseline renal function and RWD values. The median baseline RDW was 13.0% (range, 10.0-32.1%). The high-RDW group was defined as the top quartile (≥ 13.8%, n = 4302). The crude mortality rate was 15.0% (n = 1806) at a median follow-up of 127.5 months. From the results of the multivariate Cox proportional hazards regression model adjusted for covariates, including eGFR, hemoglobin, and factors of anemia treatment, patients with a high time-averaged RDW had increased mortality risk (adjusted hazard ratio, 1.505; 95% confidence interval, 1.326-1.708; P < 0.001), irrespective of sex, presence of anemia, and chronic kidney disease, except in individuals aged < 45 years. Thus, increased baseline and time-averaged RDW were significantly associated with increased mortality in patients aged > 45 years treated on an outpatient basis in the nephrology clinic.

Indexed as

Erythrocyte IndicesAmbulatory Care FacilitiesFemaleHumansMaleMiddle AgedNephrologyPrognosisRenal Insufficiency, ChronicRetrospective StudiesRisk AssessmentRisk FactorsSurvival Rate

Identifiers

PMID34934060
PMCPMC8692533
OpenAlexW4200611831

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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.