EISER study: Undiagnosed IBD in SpA Abs#0495 #ACR23 @RheumNow 559 pts, 47% PsA/53% SpA (80% r-AxSpA) Higher mean fecal calprotectin in r-AxSpA (395 vs 305 nrAxSpA/PsA) 14.6% IBD symptoms, 23 patients (4.4% were dx w IBD) Fecal calprotectin & history can uncover IBD #ACRBest