A compound attribute that is the ratio of amount of dickkopf-related protein 1 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood. The trait is DKK1/PDGFB protein level ratio in blood (Ontology of Biological Attributes identifier OBA_2053981). Also known as: the ratio of amount of dickkopf-related protein 1 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood.