A compound attribute that is the ratio of amount of flavin reductase (NADPH) (human) in blood to amount of hemoglobin subunit theta-1 (human) in blood. The trait is OBA_2053299 (BLVRB/HBQ1 protein level ratio in blood). Also known as: the ratio of amount of flavin reductase (NADPH) (human) in blood to amount of hemoglobin subunit theta-1 (human) in blood.