1. University of Nottingham Division of Graduate Entry Medicine and Health Sciences, , Derby, UK
2. The Saudi Electronic University Faculty of Public Health, College of Health Science, , Riyadh, Saudi Arabia
3. University Hospitals Derby and Burton NHS Foundation Trust Department of Endocrinology and Diabetes, , Derby, UK
4. University of Nottingham Division of Primary Care, , Nottingham NG2 7RD, UK
5. University of Nottingham MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, NIHR, Nottingham BRC, , Derby, UK