A compound attribute that is the ratio of amount of endothelial cell-selective adhesion molecule (human) in blood to amount of alpha-(1,6)-fucosyltransferase (human) in blood. The trait is ESAM/FUT8 protein level ratio in blood (OBA_2054755). Also known as: the ratio of amount of endothelial cell-selective adhesion molecule (human) in blood to amount of alpha-(1,6)-fucosyltransferase (human) in blood.