A compound attribute that is the ratio of amount of CD40 ligand (human) in blood to amount of plasminogen activator inhibitor 1 (human) in blood. The trait is OBA_2054215 (CD40LG/SERPINE1 protein level ratio in blood). Also known as: the ratio of amount of CD40 ligand (human) in blood to amount of plasminogen activator inhibitor 1 (human) in blood.