Author(s): Rocha, Margarida Lucas ; Torres, R. ; Ramiro, S. ; Castro, A. M. ; Neves, A. ; Martins, A. ; Chícharo, A. T. ; Mendes, B. ; Matos, C. O. ; Soares, C. ; Oliveira, C. P. ; Parente, H. ; Gomes, J. A. M. ; Luís, M. ; Santos, M. ; Couto, M. ; Bernardes, M. ; Valente, P. ; Costa, R. ; Sousa, S. ; Branco, J. ; Pimentel-Santos, F. ; Sepriano, A.
Date: 2023
Persistent ID: http://hdl.handle.net/10400.1/26207
Origin: Sapientia - Universidade do Algarve
Subject(s): Rheumatology
Axial spondyloarthritis (axSpA) typically starts before the fourth decade oflife. Consistent with that, the Assessment of SpondyloArthritis international Society (ASAS)classification criteria for axSpA should be applied only in patients with chronic back pain startingbefore 45 years of age. It has, however, been suggested that axSpA can sometimes start later in lifewith a distinctive phenotype, the so-called ‘late onset axSpA’ (lo-axSpA). There is, nevertheless, onlylimited data in support of the existence of such phenotype. We aimed to evaluate the occurrence oflo-axSpA and if these patients differ from those with early onset axSpA (eo-axSpA).
