J Rheumatol 2014 Dec 1;41(12):2409-12. Epub 2014 Nov 1.
From the Services of Rheumatology; Anesthesiology, Hospital Clínico Universitario de Salamanca, Salamanca; Rheumatology, Hospital Universitario Reina Sofía, Instituto Maimónides de Investigación Biomédica de Córdoba, Córdoba; Rheumatology, Hospital Universitario Central de Asturias, Oviedo; Rheumatology, Hospital Clinic de Barcelona; Rheumatology, Hospital de Bellvitge, L'Hospitalet de Llobregat; Rheumatology, Hospital Parc Taulí, Sabadell, Barcelona; Rheumatology, Hospital Fundación de Alcorcón; Rheumatology, Hospital Puerta de Hierro, Madrid, Spain.C. Montilla, MD, PhD; I. Calero-Paniagua, MD, Rheumatology; A. Díaz-Alvarez, MD, PhD, Anesthesiology, Hospital Clínico Universitario de Salamanca; E. Collantes-Estevez, MD, PhD; P. Font, MD, PhD, Rheumatology, Hospital Universitario Reina Sofía, Instituto Maimónides de Investigación Biomédica de Córdoba; R. Almodovar, MD, PhD; P. Zarco, MD, PhD, Rheumatology, Hospital Fundación de Alcorcón; R. Queiro-Silva, MD, PhD, Rheumatology, Hospital Universitario Central de Asturias; J.D. Cañete, MD, PhD, Rheumatology, Hospital Clinic de Barcelona; X. Juanola, MD, PhD, Rheumatology, Hospital de Bellvitge, L'Hospitalet de Llobregat; J. Mulero, MD, PhD; E. de Miguel, MD, PhD, Rheumatology, Hospital Puerta de Hierro; J. Gratacós, MD, PhD, Rheumatology, Hospital Parc Taulí.
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.