A compound attribute that is the ratio of amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood to amount of SPARC protein (human) in blood. The trait is EDAR/SPARC protein level ratio in blood (OBA_2055632). Also known as: the ratio of amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood to amount of SPARC protein (human) in blood.