1. Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences (NDORMS)University of Oxford Oxford UK
2. GREMPAL Research Group (Idiap Jordi Gol Primary Care Research Institute) and CIBERFesUniversitat Autonoma de Barcelona and Instituto de Salud Carlos III Barcelona Spain
3. Clinical Epidemiology Unit, Orthopaedics, Department of Clinical Sciences LundLund University Lund Sweden
4. Genetic and Molecular Epidemiology Unit, Lund University Diabetes Centre, Department of Clinical Sciences MalmöLund University Malmö Sweden
5. Clinical and Molecular Osteoporosis Research Unit, Department of Clinical Sciences and Orthopedics MalmöSkåne University Hospital, Lund University Lund Sweden