Physical function and sex differences in radiographic axial spondyloarthritis: a cross-sectional analysis on Bath Ankylosing Spondylitis Functional Index.

"Declarations Ethics approval and consent to participateThe study was approved by the regional ethics committees in Gothenburg and Umeå, Sweden (Göteborg Dnr 597–08, Umeå Dnr 2016/208–31), and was performed in accordance with the Helsinki declaration. All participants gave their written informed consent. Consent for publicationNot applicable. Competing interestsMH, EK, JBR, MG and HFd’E declare that they have no competing interests. AD has received an honorary fee from UCB. Competing interests MH, EK, JBR, MG and HFd’E declare that they have no competing interests. AD has received an honorary fee from UCB."

"Funding Open access funding provided by University of Gothenburg. This work was supported by grants from The Swedish Research Council [2016–02035]; the Swedish state under the agreement between the Swedish government and the county councils, the ALF agreement [ALFVLL-640251, ALFGBG-938395, ALFGBG-965333]; King Gustaf Vth 80-year Foundation [FAI-2017–0454]; The Västerbotten Association Against Rheumatism; The Swedish Association Against Rheumatism; Mats Kleberg’s Foundation; and The Margareta Rheuma research foundation."