Identification of the first signs or symptoms in different spondyloarthritis subtypes and their association with HLA-B27: data from REGISPONSER and RESPONDIA registries.
María Ángeles Puche-LarrubiaLourdes Ladehesa-PinedaJanitzia Vázquez-MelladoAlejandro Escudero-ContrerasJordi GratacósXavier JuanolaEduardo Collantes-EstévezPilar Font-UgaldeClementina López MedinaPublished in: RMD open (2023)
In this SpA population, MMs were the most prevalent initial symptoms, with differences across diagnoses and depending on the presence of the HLA-B27 antigen.