1. Robert G. Cumming, MB BS, PhD, is Associate Professor (Epidemiology), Department of Public Health and Community Medicine, University of Sydney, Sydney NSW 2006, Australia; bobc@health.usyd.edu.au
2. Margaret Thomas, Grad DipOT, MPH, is Evaluation Officer, Health Promotion Unit, Central Sydney Area Health Service, Sydney, Australia
3. George Szonyi, MB BS, FRACP, is Geriatrician, Balmain Hospital, Sydney, Australia
4. Gina Frampton, BAppSc(OT), is Occupational Therapist, Aged Community Services Team, Concord Hospital, Sydney, Australia
5. Glenn Salkeld, Grad Dip Health Econ, MPH, is Senior Lecturer (Health Economics), Department of Public Health and Community Medicine, University of Sydney, Australia
6. Lindy Clemson, MAppSc(OT), is Lecturer (Occupational Therapy), School of Occupation and Leisure Sciences, University of Sydney, Australia