1. Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS) University of Oxford Oxford UK
2. Faculty of Epidemiology and Population Health, Department of Non‐communicable Disease Epidemiology London School of Hygiene and Tropical Medicine London UK
3. Department of Public Health Saint Paul Hospital Millennium Medical College Addis Ababa Ethiopia
4. Biostatistics Unit, Bellvitge Biomedical Research Institute (IDIBELL) L'Hospitalet de Llobregat Barcelona Spain
5. Basic Medical Sciences Department Rovira Virgili University Tarragona Spain
6. NDORMS, University of Oxford Oxford UK
7. OPEN, Department of Health University of Southern Denmark Odense Denmark
8. Holbæk Hospital, Department of Medicine Holbæk Denmark
9. Sport, Exercise and Arthritis Centre: Versus Arthritis University of Oxford Oxford UK
10. Population Health Sciences Bristol Medical School, University of Bristol Bristol UK
11. North Bristol NHS Trust Bristol UK
12. MRC Lifecourse Epidemiology Unit University of Southampton Southampton UK
13. Clinical Practice Research Datalink (CPRD) London UK
14. Musculoskeletal Research Unit Translational Health Sciences, Bristol Medical School, University of Bristol Bristol UK
15. Department of Nephrology Hospital del Mar Barcelona Spain
16. Internal Medicine, IMIM (Hospital del Mar Research Institute), Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES) Barcelona Spain
17. Hospital del Mar Institute of Medical Research Autonomous University of Barcelona Research Network on Frailty and Healthy Aging (CIBERFES) Instituto Carlos III Barcelona Spain
18. Grup de Recerca en Malalties Prevalents de l'Aparell Locomotor (GREMPAL) Research Group and CIBERFes, University Institute for Primary Care Research (IDIAP) Jordi Gol, Universitat Autonoma de Barcelona and Instituto de Salud Carlos III Barcelona Spain