Hawaii Chapter - NHF
Phone 808-782-5506

Inhibitors & Other Complications

Who is at Risk for developing an inhibitor?

Experts estimate that 1/3 to 1/5 of people with severe hemophilia A may develop an inhibitor sometime in their lives. For those people with severe hemophilia B, inhibitors somewhat less common, thought to affect between 1% to 4% of this group.

Inhibitors most often develop during childhood, especially during the first 50 exposure days. People with hemophilia have the greatest risk for developing an inhibitor during childhood. The incidence of inhibitors is highest among those with severe hemophilia, followed by moderate and mild deficiency or moderately severe hemophilia. The risk of inhibitor development is higher if someone in the patient's family also has an inhibitor, and is more frequent among African Americans.


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Hawaii Chapter - NHF
91-1121 Keaunui Dr. Suite 108 - #118
Ewa Beach, HI 96706
Phone 808-782-5506

© Hawaii Chapter Hemophilia Foundation 2021

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