Evidence map›Paper›PMID 33171297›Full record

Observational studyAnaesthesia, critical care & pain medicine2021

Association between red blood cell distribution width and mortality of COVID-19 patients.

Leonardo Lorente, María M Martín, Mónica Argueso, Jordi Solé-Violán, Alina Perez, José Alberto Marcos Y Ramos, Luis Ramos-Gómez, Sergio López, Andrés Franco, Agustín F González-Rivero and 13 more

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Anaesthesia, critical care & pain medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 3 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

37 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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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

23 authors.

Leonardo LorenteIntensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain. Electronic address: lorentemartin@msn.com.
María M MartínIntensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, Santa Cruz de Tenerife 38010, Spain.
Mónica ArguesoIntensive Care Unit, Complejo Hospitalario Universitario Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain.
Jordi Solé-ViolánIntensive Care Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
Alina PerezInternal Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain.
José Alberto Marcos Y RamosIntensive Care Unit, Hospital Doctor José Molina Orosa, Ctra. Arrecife-Tinajo, km 1.300, Arrecife, Lanzarote 35550, Spain.
Luis Ramos-GómezIntensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain.
Sergio LópezDepartment of Anaesthesiology, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
Andrés FrancoImmunology Unit of Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain.
Agustín F González-RiveroLaboratory Department, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain.
María MartínIntensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain.
Verónica GonzalezIntensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n. La Laguna, 38320 Santa Cruz de Tenerife, Spain.
Julia Alcoba-FlórezMicrobiology Unit of Laboratory Department, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, Santa Cruz de Tenerife 38010, Spain.
Miguel Ángel RodriguezIntensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, Santa Cruz de Tenerife 38010, Spain.
Marta Riaño-RuizDepartment of Biochemistry, Complejo Hospitalario Universitario Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain.
Juan Guillermo O CampoIntensive Care Unit, Complejo Hospitalario Universitario Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain.
Lourdes GonzálezInternal Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain.
Tamara CanteraIntensive Care Unit, Hospital Doctor José Molina Orosa, Ctra. Arrecife-Tinajo, km 1.300, Arrecife, Lanzarote 35550, Spain.
Raquel Ortiz-LópezIntensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain.
Nazario OjedaDepartment of Anaesthesiology, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
Aurelio Rodríguez-PérezDepartment of Anaesthesiology, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
Casimira DomínguezLaboratory Department, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain.
Alejandro JiménezResearch Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe have previously reported an association between high red blood cell distribution width (RDW) and mortality in septic and brain infarction patients. However, no association between RDW and mortality in coronavirus disease 2019 (COVID-19) patients has been reported so far; thus, the objective of this study was to determine if that association exists.

methodsProspective and observational study carried out in 8 Intensive Care Units from 6 hospitals of Canary Islands (Spain) including COVID-19 patients. We recorded RDW at ICU admission and 30-day survival.

resultsWe found that patients who did not survive (n=25) compared to surviving patients (n=118) were older (p=0.004), showed higher RDW (p=0.001), urea (p<0.001), APACHE-II (p<0.001) and SOFA (p<0.001), and lower platelet count (p=0.007) and pH (p=0.008). Multiple binomial logistic regression analysis showed that RDW was associated with 30-day mortality after controlling for: SOFA and age (OR=1.659; 95% CI=1.130-2.434; p=0.01); APACHE-II and platelet count (OR=2.062; 95% CI=1.359-3.129; p=0.001); and pH and urea (OR=1.797; 95% CI=1.250-2.582; p=0.002). The area under the curve (AUC) of RDW for mortality prediction was of 71% (95% CI=63-78%; p<0.001). We did not find significant differences in the predictive capacity between RDW and SOFA (p=0.66) or between RDW and APACHE-II (p=0.12).

conclusionsOur study provides new information regarding the ability to predict mortality in patients with COVID-19. There is an association between high RDW and mortality. RDW has a good performance to predict 30-day mortality, similar to other severity scores (such as APACHE II and SOFA) but easier and faster to obtain.

Indexed as

Erythrocyte IndicesAgedAge FactorsAPACHEArea Under CurveCell ShapeCell SizeCOVID-19Erythrocyte VolumeFemaleHumansHydrogen-Ion ConcentrationMaleMiddle AgedOdds RatioOrgan Dysfunction ScoresUreaCOVID-19MortalityOutcomePatientsRed blood cell distribution width

Identifiers

PMID33171297
PMCPMC7648194

What OpenQuestion holds

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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.