Heterozygous Factor V Leiden is present in approximately 5% of the white population in the United States and homozygous Factor V Leiden is found less than 1% of this population.
O factor V de Leiden heterocigoto preséntase aproximadamente no 5% da poboación branca de Estados Unidos e o factor V de Leiden homocigoto encóntrase en menos dun 1% desa poboación.