A compound attribute that is the ratio of amount of trefoil factor 1 (human) in blood to amount of trefoil factor 2 (human) in blood. The trait is TFF1/TFF2 protein level ratio in blood (OBA_2053043). Also known as: the ratio of amount of trefoil factor 1 (human) in blood to amount of trefoil factor 2 (human) in blood.