Evidence map›Paper›PMID 33069541›Full record

SynthesisThe American journal of emergency medicine2021

Elevated D-dimer levels on admission are associated with severity and increased risk of mortality in COVID-19: A systematic review and meta-analysis.

Baris Gungor, Adem Atici, Omer Faruk Baycan, Gokhan Alici, Fatih Ozturk, Sevil Tugrul, Ramazan Asoglu, Erdem Cevik, Irfan Sahin, Hasan Ali Barman

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis 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 61 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 4 pooled it
2.1field-weighted citation impact, top 7% 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

61 citing papers in PubMed, 4 syntheses or guidelines pooled it, 114 citations in OpenAlex.

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  2. Clinical significance of prognostic nutrition index in hospitalized patients with COVID-19: Results from single-center experience with systematic review and meta-analysis.Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2021
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1 more citing papers are in PubMed but not listed here.

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

10 authors at 8 institutions in 1 country.

Baris GungorUniversity of Health Sciences, Dr. Siyami Ersek Training and Research Hospital, Department of Cardiology, Istanbul, Turkey.
Adem AticiIstanbul Medeniyet University, Faculty of Medicine, Goztepe Training and Research Hospital, Department of Cardiology, Istanbul, Turkey.
Omer Faruk BaycanIstanbul Medeniyet University, Faculty of Medicine, Goztepe Training and Research Hospital, Department of Cardiology, Istanbul, Turkey.
Gokhan AliciUniversity of Health Sciences, Okmeydani Training and Research Hospital, Department of Cardiology, Istanbul, Turkey.
Fatih OzturkYuzunci Yil University, Faculty of Medicine, Department of Cardiology, Van, Turkey.
Sevil TugrulUniversity of Health Sciences, Bagcilar Training and Research Hospital, Department of Cardiology, Istanbul, Turkey.
Ramazan AsogluUniversity of Health Sciences, Adiyaman Training and Research Hospital, Department of Cardiology, Adiyaman, Turkey.
Erdem CevikIstanbul University, Istanbul Faculty of Medicine, Department of Cardiology, Istanbul, Turkey.
Irfan SahinUniversity of Health Sciences, Bagcilar Training and Research Hospital, Department of Cardiology, Istanbul, Turkey.
Hasan Ali BarmanIstanbul University - Cerrahpasa, Institute of Cardiology, Department of Cardiology, Istanbul, Turkey. Electronic address: drhasanali@hotmail.com.
Istanbul Medeniyet University · TRSağlık Bilimleri Üniversitesi · TRBağcılar Eğitim ve Araştırma Hastanesi · TRDr. Siyami Ersek Göğüs Kalp Ve Damar Cerrahisi Eğitim Ve Araştırma Hastanesi · TRIstanbul University · TRIstanbul University-Cerrahpaşa · TROkmeydanı Eğitim ve Araştırma Hastanesi · TRVan Yüzüncü Yıl Üniversitesi · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn this systematic review and meta-analysis, we aimed to investigate the correlation of D-dimer levels measured on admission with disease severity and the risk of death in patients with coronavirus disease 2019 (COVID-19) pneumonia. MATERIALS AND

methodsWe performed a comprehensive literature search from several databases. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed in abstracting data and assessing validity. Quality assessment was performed using the Newcastle-Ottawa quality assessment scale (NOS). D-dimer levels were pooled and compared between severe/non-severe and surviving/non-surviving patient groups. Weighted mean difference (WMD), risk ratios (RRs) and 95% confidence intervals (CIs) were analyzed.

resultsThirty-nine studies reported on D-dimer levels in 5750 non-severe and 2063 severe patients and 16 studies reported on D-dimer levels in 2783 surviving and 697 non-surviving cases. D-dimer levels were significantly higher in patients with severe clinical status (WMD: 0.45 mg/L, 95% CI: 0.34-0.56; p < 0.0001). Non-surviving patients had significantly higher D-dimer levels compared to surviving patients (WMD: 5.32 mg/L, 95% CI: 3.90-6.73; p < 0.0001). D-dimer levels above the upper limit of normal (ULN) was associated with higher risk of severity (RR: 1.58, 95% CI: 1.25-2.00; p < 0.0001) and mortality (RR: 1.82, 95% CI: 1.40-2.37; p < 0.0001).

conclusionIncreased levels of D-dimer levels measured on admission are significantly correlated with the severity of COVID-19 pneumonia and may predict mortality in hospitalized patients.

Indexed as

COVID-19Fibrin Fibrinogen Degradation ProductsHospitalizationHumansPrognosisRisk AssessmentFibrin Fibrinogen Degradation Productsfibrin fragment D

Identifiers

PMID33069541
PMCPMC7489326
OpenAlexW3085509417

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.