A compound attribute that is the ratio of amount of dickkopf-related protein 1 (human) in blood to amount of zinc finger and BTB domain-containing protein 16 (human) in blood. The trait is DKK1/ZBTB16 protein level ratio in blood (OBA_2054016, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of dickkopf-related protein 1 (human) in blood to amount of zinc finger and BTB domain-containing protein 16 (human) in blood.