OP0154 COMORBIDITY CLUSTERS IN ANKYLOSING SPONDYLITIS AND THEIR ASSOCIATION WITH DISEASE ACTIVITY AND FUNCTIONAL IMPAIRMENT: DATA FROM THE PSOAS COHORT.
P. Karmacharya, C. S. Crowson, D. Poudel, J. M. Davis, A. Ogdie, J. Liew, M. Ward, M. Ishimori, M. Weisman, M. Brown, M. Rahbar, M. Hwang, J. D. Reveille, L. S. Gensler