Evidence map›Paper›PMID 33309506›Full record

ArticleThe American journal of emergency medicine2021

Neutrophil to lymphocyte ratio, lymphocyte to monocyte ratio and platelet to lymphocyte ratio to predict the severity of COVID-19.

Murat Seyit, Esin Avci, Rukiye Nar, Hande Senol, Atakan Yilmaz, Mert Ozen, Alten Oskay, Hulya Aybek

Open access · greenAbstract readComparative Study
In one paragraph

Article in The American journal of emergency medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed, 3 pooled it
4.0field-weighted citation impact, top 4% 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

107 citing papers in PubMed, 3 syntheses or guidelines pooled it, 201 citations in OpenAlex.

  1. Pentoxifylline in COVID-19 and considerations for its research in long COVID.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2024
    Pooled it
  2. Pooled it
  3. The Association of Neutrophil-Lymphocyte Ratio with Venous Thromboembolism: A Systematic Review and Meta-Analysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
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  18. Endothelial Dysfunction with Aging: Does Sex Matter?International journal of molecular sciences · 2024
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47 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Murat SeyitMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey. Electronic address: muratseyit@yahoo.com.
Esin AvciMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey.
Rukiye NarMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey.
Hande SenolMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey.
Atakan YilmazMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey.
Mert OzenMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey.
Alten OskayMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey.
Hulya AybekMedical Faculty, Department of Emergency Medicine, Pamukkale University, Denizli 20070, Turkey.
Pamukkale University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIn this study, we aimed to investigate and compare the prognostic impacts of C-reactive protein (CRP), white blood cell (WBC) count, neutrophil (NEU)-to-lymphocyte (LYM) ratio (NLR), platelet-to-lymphocyte ratio (PLR), Red Cell Distribution Width (RDW) biomarkers in laboratory-confirmed COVID-19 cases as well as to explore the most useful diagnostic biomarkers and optimal cutoff values in COVID-19 patients.

methodsA total of 233 patients were admitted to Emergency Department (ED) of Pamukkale University Hospital during two months (March-April 2020) and underwent Sars CoV-2 PCR (Polymerase Chain Reaction), complete blood count (CBC), and CRP tests in sequence due to complaints of COVID-19. The laboratory results and demographic findings were collected from the public health management system retrospectively. The patients with positive Sars CoV-2 PCR test along with hospitalization data were also recorded.

resultsThe CRP (p = 0.0001), lactate dehydrogenase (LDH) (p = 0.038), PLR (p = 0.0001) and NLR (p = 0.001) remained significantly higher in the patients with positive Sars CoV-2 PCR test result. By contrast, eosinophil (p = 0.0001), lymphocyte (p = 0.0001), platelet levels (p = 0.0001) were calculated as significantly higher in negative Sars CoV-2 patients.

conclusionIn the light of the obtained results, the CRP, LDH, PLR and NLR levels remained significantly higher in COVID-19 positive patients, while eosinophil, lymphocyte, and platelet levels were significantly elevated in COVID-19 negative patients.

Indexed as

Blood PlateletsLymphocytesMonocytesNeutrophilsAdolescentAdultAgedAged, 80 and overBlood Cell CountCOVID-19FemaleHumansMaleMiddle AgedPredictive Value of TestsPrognosisCOVID-19LymphocyteNLRPlateletPLRSARS-CoV-2

Identifiers

PMID33309506
PMCPMC7719281
OpenAlexW3112395022

What OpenQuestion holds

Textmetadata
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.