A study comparing trends in the incidence of RA from 2005 to 2014 with previous decades showed a shift in RA subset, suggesting the need for timely recognition of rheumatoid factor-negative RA…
NEW YORK (Reuters Health)’Over the last three decades, there has been a significant decline in the incidence of rheumatoid factor (RF) positive rheumatoid arthritis (RA), while the overall incidence of RA has remained about the same, researchers report. “These trends may suggest changing serological profile of RA over time which may have implications for RA…