A compound attribute that is the ratio of amount of fractalkine (human) in blood to amount of podocalyxin-like protein 2 (human) in blood. The trait is CX3CL1/PODXL2 protein level ratio in blood (Ontology of Biological Attributes term OBA_2054633). Also known as: the ratio of amount of fractalkine (human) in blood to amount of podocalyxin-like protein 2 (human) in blood.