Retrospective cohort analysis of 330 psoriasis pts - 83 (25%) developed #PsA after mean of 36 (3.5–114) mos. PsA Predictive factors include being female (OR=3.33), nails involved (OR=5.4), severe PSO (OR=27.4), po systemic Rx prior to PsA (4.1) https://t.co/Hpn6f1EUfD https://t.co/QanJkNi5S6