Correlation of SARS-CoV-2 infection severity with ABO blood groups and RhD antigen: a case-control study.

J Int Med Res · 2022 · PMC9290119 · PMID 35836375

Europe PMC DOI

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highly significantno p-value reported

In the present study, male patients with COVID-19 were older than female patients and showed a highly significant difference in illness duration, with a considerably higher mortality rate.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.