A compound attribute that is the ratio of amount of cyclin-dependent kinase inhibitor 1 (human) in blood to amount of thymosin beta-10 (human) in blood. The trait is CDKN1A/TMSB10 protein level ratio in blood (OBA_2055450, an Ontology of Biological Attributes identifier). Also known as: the ratio of amount of cyclin-dependent kinase inhibitor 1 (human) in blood to amount of thymosin beta-10 (human) in blood.