A compound attribute that is the ratio of amount of angiopoietin-related protein 3 (human) in blood to amount of tissue factor pathway inhibitor (human) in blood. The trait is Ontology of Biological Attributes id OBA_2054277 (ANGPTL3/TFPI protein level ratio in blood). Also known as: the ratio of amount of angiopoietin-related protein 3 (human) in blood to amount of tissue factor pathway inhibitor (human) in blood.