TY - JOUR T1 - Ankylosing Spondylitis without Axial Progression: Analysis of Associated Factors JF - The Journal of Rheumatology JO - J Rheumatol DO - 10.3899/jrheum.140018 SP - jrheum.140018 AU - Carlos Montilla AU - Agustín Díaz-Alvarez AU - Ismael Calero-Paniagua AU - Pilar Font AU - Eduardo Collantes-Estevez AU - Raquel Almodovar AU - Pedro Zarco AU - Ruben Queiro-Silva AU - Juan D. Cañete AU - Xavier Juanola AU - Juan Mulero AU - Eugenio de Miguel AU - Jordi Gratacós Y1 - 2014/11/01 UR - http://www.jrheum.org/content/early/2014/10/28/jrheum.140018.abstract N2 - Objective To evaluate clinical factors associated with the absence of radiographic progression in patients with spondylitis. Methods The cross-sectional study included 672 patients. All patients presented a disease evolution of more than 15 years. Patients were classified as with radiographic spinal involvement versus without radiographic spinal involvement. We included clinical variables potentially related to null radiological progression. Results Seventy-five patients had no radiographic involvement. These patients were predominantly female, had a lower erythrocyte sedimentation rate (ESR), and a lower C-reactive protein level. Multivariate analysis showed an association with the female sex and low ESR. Conclusion Clinical factors associated with this lack of progression were female sex and low ESR. ER -