A compound attribute that is the ratio of amount of cadherin-2 (human) in blood to amount of cadherin-related family member 2 (human) in blood. The trait is CDH2/CDHR2 protein level ratio in blood (Ontology of Biological Attributes term OBA_2054394). Also known as: the ratio of amount of cadherin-2 (human) in blood to amount of cadherin-related family member 2 (human) in blood.