What is the prevalence of factor IX deficiency (FIX) (hemophilia B) in the US?

Updated: Mar 09, 2021
  • Author: Robert A Schwartz, MD, MPH; Chief Editor: Srikanth Nagalla, MD, MS, FACP  more...
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Incidence of hemophilia B is approximately 1 case per 30,000 male births.

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