ABO Blood Type

Blood group O was nearly as common as blood group A in the study population. Type O is described as the cardiovascular baseline with the lowest clotting risk and lowest documented coronary event rate. Type B is described as having a modestly elevated clotting risk compared with type O. The ABO blood type gene is presented as a driver of measurable differences in cardiovascular mortality risk. Type A is presented as having two simultaneous cardiovascular risk mechanisms: elevated clotting tendency and arterial inflammation. The article says routine checkups usually do not screen for blood-type-specific vascular risk. Type AB is described as the most cardiovascularly vulnerable blood type by current published evidence cited in the article. ABO distributions vary across populations due to demographic and genetic factors.