Immune thrombocytopenic purpura does not exhibit a disparity in prevalence between African American and white veterans

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Abstract
A recent review of previous small studies4-10 reported that the proportion of African American patients with immune thrombocytopenic purpura (ITP) was very low compared with the proportion of African Americans in the population. If that is the case, further investigation of environmental, social, and genetic factors that contribute would be a priority. However, if the report is not valid, not only will such investigations be fruitless, but negative social, economic, and public health consequences could result; for example, the level of suspicion for ITP in African Americans might be inappropriately low.