Evans DM, Reveille JD, Brown M, Chandran V, Gladman DD, Martin TM, McGovern D, Wordsworth P, Inman RD. The genetic basis of spondyloarthritis: SPARTAN/IGAS 2009. J Rheumatol 2010;37:2626–31. The author’s affiliation should read: P. Wordsworth, MA, MB, FRCP NIHR Oxford Musculoskeletal Biomedical Research Unit, Nuffield Orthopaedic Centre. The acknowledgment of support should read: Paul Wordsworth acknowledges support of the NIHR Oxford Musculoskeletal Biomedical Research Centre. We regret the errors.