1. The University of Sydney and Sydney Local Health District Institute for Musculoskeletal Health, , Sydney , Australia
2. The University of Sydney School of Public Health, Faculty of Medicine and Health, , Australia
3. The University of Newcastle School of Medicine and Public Health, , Australia
4. The University of Sydney ARC Centre of Excellence in Population Aging Research (CEPAR), , Sydney , Australia
5. The University of Sydney Concord Clinical School, Faculty of Medicine and Health, , Sydney , Australia
6. Concord Repatriation General Hospital Centre for Education and Research on Ageing, Department of Geriatric Medicine, , Sydney , Australia