Retrospective study of 1553 IBD pts taking biologics or JAKi, w/ 5+ yrs of F/U, 6.8% developed MSK Sxs, with one-third subsequently Dx w/ SpA. HLA-B27 positivity (HR 3.7) and higher UC disease activity (HR 1.57) were associated with an increased risk of SpA. https://t.co/I2YSOLhkAb