Many diseases and conditions show blood group propencities. Type A is most common in western Europe. In USA type A is slightly less common than type O, and B is much less common.
We have noted that ABO A patients seem to be less "worried" for lack of a better word compared to type O, B or AB. One can even see it in their typical facial expressions. And most ABO A types appear to be N types in my assessment in office patients.
« Back to index