Research Article

Usefulness of Soluble Transferrin Receptor in the Diagnosis of Iron Deficiency Anemia in Rheumatoid Arthritis Patients in Clinical Practice

Figure 2

ROC curves for sTfR and ferritin in the diagnosis of iron deficiency, i.e., IDA or ACD/IDA, in patients with rheumatoid arthritis with low inflammatory activity. IDA: iron deficiency anemia; ACD: anemia of chronic disease.