[1] Keele Univ, Sch Med, Impact Accelerator Unit, Versus Arthrit Primary Care Ctr, Keele ST5 5BG, Staffs, England
[2] Haywood Hosp, Midlands Partnership NHS Fdn Trust, Haywood Acad Rheumatol Ctr, Stoke On Trent, Staffs, England
[3] Keele Univ, Versus Arthrit Primary Care Ctr, Sch Med, Impact Accelerator Unit, Keele ST5 5BG, Staffs, England
[4] Keele Univ, Sch Nursing & Midwifery, Keele ST5 5BG, Staffs, England
[5] Univ West England, Ctr Hlth & Clin Res, Bristol, England
[6] Univ Birmingham, Inst Appl Hlth Res, Edgbaston, Birmingham B15 2TT, England
[7] Keele Univ, Versus Arthrit Primary Care Ctr, Sch Med, Keele ST5 5BG, Staffs, England