Trends in Early Undifferentiated PolyArthritis presentation. Over 3 eras (1998-2004-245 pts; 2005-10 266 pts; 2011-22 329 pts) many Sxs & Rx same. But Sxs duration 2.9 to 4.1mos, seropositivity 54 to 42%, Erosion score 18 to 9, mostly in Seroneg pts; Steroids incr 18 to 33%… https://t.co/AZfjqB4xGI https://t.co/GEwDWjccxl