Journal
JOURNAL OF INFECTION IN DEVELOPING COUNTRIES
Volume 15, Issue 12, Pages 1801-1807Publisher
J INFECTION DEVELOPING COUNTRIES
DOI: 10.3855/jidc.13815
Keywords
ABO blood group; COVID-19; coronavirus disease 2019; meta-analysis
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This meta-analysis examines the relationship between ABO blood group and COVID-19 infection. The study found that blood group O was associated with a lower risk of COVID-19, while blood group A and AB were associated with a higher risk. Further research is needed to fully understand the role of ABO blood group in COVID-19 infection.
Introduction: Previous studies have linked the relationship between ABO blood group and COVID-19 infection. However, existing evidence is preliminary and controversial. This meta-analysis sought to identify studies that describe COVID-19 and ABO blood group. Methodology: A literature search was conducted from PubMed, Web of Science, MedRxiv, BioRxiv and Google Scholar databases. Members of cases and controls were extracted from collected studies. Pooled Odds ratio (OR) and 95% confidence interval (95%CI) were calculated and interpreted from extracted data. Publication bias and sensitivity analysis were also applied to confirm our discovery. Results: Total 13,600 patients and 3,445,047 controls were included in the study. Compared to other ABO blood group, blood group O was associated with a lower risk of COVID-19 infection (OR = 0.76, 95%CI 0.66-0.84), while blood group A and AB was associated with a higher risk (OR = 1.25, 95%CI 1.10-1.41; OR = 1.13, 95%CI 1.04-1.23, respectively). In the subgroup analysis, the relationship between blood group A, O and COVID-19 infection remained stable among Chinese, European and Eastern Mediterranean populations. In American population, blood groups B was linked with increased risk of COVID-19 infection (OR = 1.21, 95%CI 1.09-1.35). Conclusions: Our data suggested that individuals with blood types A and AB are more susceptible to COVID-19, while people with blood type O are less susceptible to infection. More research is needed to clarify the precise role of the ABO blood group in COVID-19 infection to address the global question.
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