BioDMARDs reduce polyimmunity in RA Danish Registry based cohort study 5 yrs follow up 25000+ pts Polyimmunity in csDMARDs treated group 2.2% vs. 1.7% in bioDMARDs group HR 0.74 Most frequent autoimmune thyroid disease POS0161 #EULAR2025 @RheumNow https://t.co/9T0mhoUuqs