[1] Univ Cambridge, Sch Clin Med, Dept Publ Hlth & Primary Care, Cambridge, England
[2] Northwick Pk Hosp & Clin Res Ctr, Dept Rheumatol, Harrow, Middx, England
[3] Univ Cambridge, Patient & Publ Involvement Rheumatol Res Grp, Inst Publ Hlth, Cambridge, England
[4] Univ Birmingham, Rheumatol Res Grp, Inst Inflammat & Ageing, Coll Med & Dent Sci, Birmingham, W Midlands, England
[5] UCL, Dept Rheumatol, London, England
[6] Univ Nottingham, Sch Med, Populat & Lifespan Sci, Nottingham, England
[7] LUPUS UK, Romford, Essex, England
[8] Guys & St Thomas NHS Fdn Trust, Louise Coote Lupus Unit, London, England
[9] Univ East Anglia, Behav & Implementat Sci Grp, Sch Hlth Sci, Norwich, Norfolk, England