Table 3

ABO blood group and 1584 phenotype in blood donors with VWF:Ag less than or equal to 50 IUdL−1

PhenotypeNo. donorsDonors with VWF:Ag at or below50 IUdL−1, %
All 5052 1.5 
Group O 2330 2.4 
Y/C1584 50 18.0 
Group O and Y/C1584 23 34.8 
Group non-O 2722 0.7 
Y/Y1584 5002 1.3 
Group O and Y/Y1584 2307 2.1 
Group non-O and Y/C1584 27 3.7 
Group non-O and Y/Y1584 2695 0.6 
PhenotypeNo. donorsDonors with VWF:Ag at or below50 IUdL−1, %
All 5052 1.5 
Group O 2330 2.4 
Y/C1584 50 18.0 
Group O and Y/C1584 23 34.8 
Group non-O 2722 0.7 
Y/Y1584 5002 1.3 
Group O and Y/Y1584 2307 2.1 
Group non-O and Y/C1584 27 3.7 
Group non-O and Y/Y1584 2695 0.6 

Within this low VWF group there was a higher proportion of donors with blood group O and Y/C1584, particularly both together. The data suggest a synergistic effect of blood group O and C1584 on VWF level.

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