IL1RN/LGALS9 protein level ratio in blood (Ontology of Biological Attributes id OBA_2054430) can be described as follows. A compound attribute that is the ratio of amount of interleukin-1 receptor antagonist protein (human) in blood to amount of galectin-9 (human) in blood. Also known as: the ratio of amount of interleukin-1 receptor antagonist protein (human) in blood to amount of galectin-9 (human) in blood.