Rheumatoid arthritis (RA) is an autoimmune disease that causes joint inflammation, pain, and potential damage. To diagnose and manage RA, healthcare providers use a combination of clinical evaluation, ...

For the 5 tests, the cumulative probabilities of very abnormal laboratory results varied from 0.2% for leukocyte count to 6.6% for eGFR at 2 years and from 0.3 to 11%, respectively, at 5 years.