ArticleTransfusion2020
COVID-19 and ABO blood groups.
Article in Transfusion, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
64 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Systematic review and meta-analysis of the effect of ABO blood group on the risk of SARS-CoV-2 infection.PloS one · 2022Pooled it
- Systematic review and meta-analysis of the susceptibility of ABO blood group to COVID-19 infection.Transfusion and apheresis science : official journal of the World Apheresis Association : official journal of the European Society for Haemapheresis · 2021Pooled it
- The impact of ABO blood group on COVID-19 infection risk and mortality: A systematic review and meta-analysis.Blood reviews · 2021Pooled it
- Pooled it
- The impact of ABO blood groups on clinical outcomes and susceptibility to COVID-19: A retrospective study in an unselected population.Transfusion · 2021Trial
- ABO blood type association with SARS-CoV-2 infection mortality: A single-center population in New York City.Transfusion · 2021Trial
- Association between ABO blood groups and clinical manifestations and outcomes of COVID-19: a retrospective cross-sectional study in southeast Iran.Scientific reports · 2026Article
- A retrospective study on the association between ABO blood group and the severity and prognosis of hospitalized Chinese patients with COVID-19.BMC infectious diseases · 2025Article
- The Investigation of the Distribution of ABO/Rh Blood Group in Hospitalized COVID-19 Patients and Its Association With Disease Severity, Clinical Outcomes, Lab Tests, and Radiologic Findings.Health science reports · 2025Article
- Coronavirus infection and ABO blood grouping: Correlation or coincidence?Journal of family medicine and primary care · 2023Article
- Association between ABO blood groups and SARS-CoV-2 infection in blood donors of Puglia region.Annals of hematology · 2023Observational
- Impact of ABO Blood Group, Hematological, and Biochemical Abnormalities on Incidence of Patients Infected with COVID-19.Archives of Razi Institute · 2023Article
- Blood Type Associated with the Risk of COVID-19 Infection in Pregnant Women.Diagnostics (Basel, Switzerland) · 2023Article
- Blood-Type-A is a COVID-19 infection and hospitalization risk in a Turkish cohort.Transfusion clinique et biologique : journal de la Societe francaise de transfusion sanguine · 2023Article
- ABO Blood Groups and Incidence of COVID-19 in the Mass Gathering Events in Borriana (Spain), March 2020: A Retrospective Cohort Study.Epidemiologia (Basel, Switzerland) · 2023Article
- Association of ABO blood types and clinical variables with COVID-19 infection severity in Libya.SAGE open medicine · 2023Article
- The impact of ABO and RhD blood types on Babesia microti infection.PLoS neglected tropical diseases · 2023Article
- Association Between ABO Blood Group System and COVID-19 Severity.American journal of clinical pathology · 2022Article
- ABO blood groups and the risk of SARS-CoV-2 infection.Protoplasma · 2022Review
- Blood types (ABO/Rhesus) and SARS-CoV-2 infection: a retrospective, cross-sectional study in 2828 healthcare workers.Future virology · 2022Article
4 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
PubMed holds no abstract for this paper.
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What OpenQuestion holds
Registered trials
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.