Which Kidd blood type phenotype is the most common?

The most common Kidd blood type phenotype is Jk(a+b+). This phenotype indicates the presence of both Jka and Jkb antigens on the red blood cells. The prevalence of the Jk(a+b+) phenotype varies by population but is generally seen as the most frequent among individuals within diverse ethnic groups.

In terms of blood type compatibility and transfusion medicine, understanding the frequency of these phenotypes is critical, as they can impact the risk of alloimmunization in transfusion recipients. For example, a person with Jk(a-b-) phenotype would be much less common and might face challenges finding compatible blood, particularly if they have developed antibodies due to previous transfusions.

The other phenotypes listed represent less common variations within the Kidd blood group system. Understanding this hierarchy of prevalence helps medical technologists anticipate complications in blood transfusions and manage patient needs effectively.