Alison Pighills1, Avril Drummond2, Shelley Crossland3, David J Torgerson4. 1. Mackay Institute of Research and Innovation, Queensland Health, Mackay Base Hospital, Queensland 4740/College of Healthcare Sciences, James Cook University, Townsville, Queensland, Australia alison.pighills@health.qld.gov.au. 2. School of Health Sciences, University of Nottingham, Nottingham, UK. 3. Mental Health Services for Older People, Leicestershire Partnership NHS Trust, Leicester, UK. 4. York Trials Unit, Department of Health Sciences, University of York, York, UK.