1. Nuffield Department of Rheumatology, Orthopaedics and Musculoskeletal Sciences, University of Oxford , Oxford , UK
2. College of Medicine and Health, University of Exeter , Exeter , UK
3. Oxford Clinical Trials Research Unit, Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford , Oxford , UK
4. Department of Sport, Exercise and Rehabilitation, Northumbria University , Newcastle , UK
5. Royal Orthopaedic Hospital NHS Foundation Trust , Birmingham , UK
6. Oxford University Hospitals NHS Trust , Oxford , UK
7. Patient and Public Involvement Representative
8. Manchester Centre for Health Psychology, University of Manchester , Manchester , UK
9. Physiotherapy Department, University of Leeds , Leeds , UK
10. Leeds Community Healthcare NHS Trust , Otley , UK
11. Primary Care Centre Versus Arthritis, School of Medicine, Keele University , Keele , UK