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. 2018 Jan 30;2(1):e39–e48. doi: 10.1055/s-0037-1618571

Table 4. VWF:Ag levels among Type 1 VWD patients.

Mutation and blood group status VWF:Ag
< 30 IU/dL		 VWF:Ag
30–50 IU/dL		 VWF:Ag
> 50 IU/dL
Mutation 21 29 1
No mutation 4 43 8
Blood group O 14 54 7
Blood group non-O 11 18 2

Abbreviations: VWD, von Willebrand disease; VWF:Ag, von Willebrand factor antigen.