What are the racial predilections of paroxysmal nocturnal hemoglobinuria (PNH)?

Updated: May 20, 2021
  • Author: Emmanuel C Besa, MD; Chief Editor: Sara J Grethlein, MD, FACP  more...
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Answer

The differences of PNH) among races were shown in a study that compared 176 American patients seen at Duke University and 209 patients from Japan. [18] White American patients were younger and had significantly more classic symptoms of the disease, including thrombosis, hemoglobinuria, and infection, whereas Asian patients were older with more marrow aplasia and a smaller PNH clone. Survival analysis showed a similar death rate in each group, although the causes of death were different, with more thrombotic deaths seen in the American patients. Japanese patients had a longer mean survival time (32.1 vs 19.4 y), but Kaplan-Meier survival curves were not significantly different. [18]


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