A compound attribute that is the ratio of amount of cyclin-dependent kinase inhibitor 1 (human) in blood to amount of gamma-enolase (human) in blood. The trait is CDKN1A/ENO2 protein level ratio in blood (Ontology of Biological Attributes entry OBA_2055441). Also known as: the ratio of amount of cyclin-dependent kinase inhibitor 1 (human) in blood to amount of gamma-enolase (human) in blood.