A compound attribute that is the ratio of amount of amyloid beta A4 precursor protein-binding family B member 1-interacting protein (human) in blood to amount of neutrophil cytosol factor 2 (human) in blood. The trait is APBB1IP/NCF2 protein level ratio in blood (OBA_2054331, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of amyloid beta A4 precursor protein-binding family B member 1-interacting protein (human) in blood to amount of neutrophil cytosol factor 2 (human) in blood.