A compound attribute that is the ratio of amount of secretogranin-1 (human) in blood to amount of retbindin (human) in blood. The trait is CHGB/RTBDN protein level ratio in blood (OBA_2055565, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of secretogranin-1 (human) in blood to amount of retbindin (human) in blood.