Is rheumatoid arthritis two different diseases?

While disease activity improves over time for most rheumatoid arthritis (RA) patients, long-term outcomes only improve in RA patients with autoantibodies, according to a new study. The findings add to a growing body of evidence that RA with and without autoantibodies are two distinct conditions.

from Health & Medicine News -- ScienceDaily https://www.sciencedaily.com/releases/2020/09/200922144327.htm