What is the prevalence of immunoglobulin A deficiency (IgAD) in the US?

Updated: May 15, 2018
  • Author: Marina Y Dolina, MD; Chief Editor: Michael A Kaliner, MD  more...
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At a minimum, an estimated 250,000 individuals have IgAD in the United States. [36] In African Americans, the prevalence of IgAD is 1 case per 6000 persons. IgA levels are estimated to be abnormally low in 1:500 subjects, with the incidence as high as 1:100 atopic individuals. Complete absence of IgA is less frequent.

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