Fig. 1

Disease manifestations in Latin American patients with SpA: a articular; b extra-articular. * Sacroiliitis includes bilateral sacroiliitis, unilateral sacroiliitis, radiographic sacroiliitis, sacroiliitis assessed by MRI, and sacroiliac syndrome. ** Peripheral arthritis includes peripheral arthritis, oligoarthritis, asymmetrical oligoarthritis, and arthritis that is unspecified by the publication. Source data for this figure can be found in Supplementary Tables 1 and 2. IBD, inflammatory bowel disease; MRI, magnetic resonance imaging