Evidence map›Paper›PMID 34045120›Full record

SynthesisTransfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis2021

Systematic review and meta-analysis of the susceptibility of ABO blood group to COVID-19 infection.

Saeed M Kabrah, Ahmed M Kabrah, Arwa F Flemban, Samer Abuzerr

Abstract readComparative StudyMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 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

32 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  7. Differential expression ofJournal of Taibah University Medical Sciences · 2024
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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

4 authors.

Saeed M KabrahLaboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia. Electronic address: smkabrah@uqu.edu.sa.
Ahmed M KabrahLaboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia. Electronic address: amkabrah@uqu.edu.sa.
Arwa F FlembanPathology Department, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia. Electronic address: aflemban@uqu.edu.sa.
Samer AbuzerrVisiting Scholar with the School of Public Health, Department of Social and Preventive Medicine, University of Montreal, Montréal, Canada; Quality Improvement and Infection Control Unit, Ministry of Health, Gaza, Palestine. Electronic address: samer_516@hotmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNumerous studies investigate the association between the ABO blood groups and the occurrence of COVID-19 infection; discordant findings were reported. Therefore, the purpose of this meta-analysis was to evaluate the existing evidence on the susceptibility of the ABO blood group to COVID-19 infection.

methodsSystematically searched published articles in PubMed, Google Scholar, Scopus, and EMBASE between 1 st January 2020 and 21 st March 2021. After quality control and the exclusion of irrelevant studies, 16 studies were included in the final analysis.

resultsAlthough the random-effect meta-analysis revealed a large heterogeneity among studies, I 2 = 99.197 %. The pooled event rates and (95 % CIs) for A, O, B, and AB blood group were 0.459 (95 %CI: 0.358-0.441), 0.342 (95 %CI: 0.298-0.374), 0.180 (95 %CI: 0.150-0.214), and 0.076 (95 %CI: 0.055-0.127), respectively. These results indicated that the COVID-19 infection rate was higher in persons with blood group A > O > B > AB. Overall, the ABO blood group's vulnerability to COVID-19 infection was statistically significant (pooled p -value<0.001).

conclusionThis meta-analysis offers a further indication of blood group A individuals' vulnerability to COVID-19 infection, and blood type AB are linked to a lower risk of COVID-19 infection.

Indexed as

PandemicsSARS-CoV-2ABO Blood-Group SystemCOVID-19Evidence-Based MedicineGenetic Predisposition to DiseaseHumansABO Blood-Group SystemABO blood group systemCOVID-19InfectionSusceptibilitySystematic review and meta-analysis

Identifiers

PMID34045120
PMCPMC8139534

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.