Analysis of 5 Nordic registries & 29,478 RA & 10,919 PsA pts initiating 1st bDMARD,s (& 362,087 pop controls). Incident ILD was higher in RA (HR 9.7) & PsA (4.4). but MTX co-use (vs non-use) did not incr ILD in RA (HR 0.9; 0.7, 1.2) or PsA (HR 1.0) https://t.co/xY8COh85Bw https://t.co/weJGirfhDX