A compound attribute that is the ratio of amount of macrophage colony-stimulating factor 1 (human) in blood to amount of lipopolysaccharide-binding protein (human) in blood. The trait is CSF1/LBP protein level ratio in blood (OBA_2054468, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of macrophage colony-stimulating factor 1 (human) in blood to amount of lipopolysaccharide-binding protein (human) in blood.