A compound attribute that is the ratio of amount of CD83 antigen (human) in blood to amount of tumor necrosis factor receptor superfamily member 4 (human) in blood. The trait is CD83/TNFRSF4 protein level ratio in blood (OBA_2053378). Also known as: the ratio of amount of CD83 antigen (human) in blood to amount of tumor necrosis factor receptor superfamily member 4 (human) in blood.