Abstract: Background: Elevated levels of Von Willebrand Factor (VWF) have been associated to an increased need of mechanical ventilation and higher mortality risk in COVID-19 patients, but the hypothesis of a shared genetic background has not been explored.
Methods: Common and low-frequency genetic variants belonging to the VWF, FVIII, and ADAMTS13 genes were tested for association with clinical variables related to severe COVID-19 disease in 9,371 European and 3,495 Latin-American patients. Gene-environment and gene-gene interactions were also explored.
Results: A variant in the VWF gene was associated to the need of invasive mechanical ventilation (IMV) in the Latin-American population. Gene-gene interaction models pointed to an interaction between ADAMTS13 and VWF genes.
Conclusion: Although we did not find significant associations among Europeans, we identified a low-frequency variant belonging to the VWF gene associated with the need of IMV in Latin-Americans.
