TY - JOUR T1 - Differential Features Between Primary Ankylosing Spondylitis and Spondylitis Associated with Psoriasis and Inflammatory Bowel Disease JF - The Journal of Rheumatology JO - J Rheumatol SP - 1656 LP - 1660 DO - 10.3899/jrheum.101049 VL - 38 IS - 8 AU - RODOLFO PÉREZ ALAMINO AU - JOSÉ A. MALDONADO COCCO AU - GUSTAVO CITERA AU - PABLO ARTURI AU - JANITZIA VAZQUEZ-MELLADO AU - PERCIVAL D. SAMPAIO-BARROS AU - DIANA FLORES AU - RUBÉN BURGOS-VARGAS AU - HELENA SANTOS AU - JOSÉ E. CHAVEZ-CORRALES AU - DANIEL PALLEIRO AU - MIGUEL A. GUTIERREZ AU - ELSA VIEIRA-SOUSA AU - FERNANDO M. PIMENTEL-SANTOS AU - SERGIO PAIRA AU - ALBERTO BERMAN AU - MARIO MORENO-ALVAREZ AU - EDUARDO COLLANTES-ESTEVEZ Y1 - 2011/08/01 UR - http://www.jrheum.org/content/38/8/1656.abstract N2 - Objective. To describe differential characteristics of axial involvement in ankylosing spondylitis (AS) as compared with that seen in psoriatic arthritis (PsA) and inflammatory bowel disease (IBD) in a cohort of Ibero-American patients. Methods. This study included 2044 consecutive patients with spondyloarthritis (SpA; ESSG criteria). Demographic, clinical, disease activity, functional ability, quality of life, work status, radiologic, and therapeutic data were evaluated and collected by RESPONDIA members from different Ibero-American countries between June and December 2006. Patients selected for analysis met modified New York criteria (mNY) for AS. Results. A total of 1264 patients met the New York criteria for AS: 1072 had primary AS, 147 had psoriatic, and 45 had IBD-associated spondylitis. Median disease duration was comparable among the 3 patient groups. Patients with primary AS were significantly younger (p = 0.01) and presented a higher frequency of males (p = 0.01) than the other 2 groups. Axial manifestations such as inflammatory back pain and sacroiliac pain were significantly more frequent in patients with primary AS (p = 0.05) versus other groups, whereas frequency of dactylitis, enthesitis, and peripheral arthritis was more common in patients with psoriatic spondylitis (p = 0.05). Spinal mobility was significantly more limited in patients with primary AS versus the other 2 groups (p = 0.0001). Radiologic changes according to BASRI total score were equally significant in primary AS. Disease activity (BASDAI), functional ability (BASFI), and quality of life (ASQoL) scores were comparable in the 3 groups. Conclusion. Patients with primary AS had more severe axial involvement than those with spondylitis associated with psoriasis or IBD. Functional capacity, disease activity, and quality of life were comparable among the groups studied. ER -