[1] Anglia Ruskin Univ, Fac Allied Hlth & Social Care, Cambridge, England
[2] Sheffield Hallam Univ, Ctr Appl Hlth & Social Care Res, Sheffield, England
[3] Univ Lancaster, Ctr Ageing Res, Div Hlth Res, Lancaster, England
[4] Heriot Watt Univ, Sch Social Sci, Dept Psychol, Edinburgh, Scotland
[5] Univ Durham, Fac Social Sci & Hlth, Durham, England