[1] Univ Kebangsaan Malaysia, Fac Hlth Sci, Ctr Hlth Ageing & Wellness H Care, Kuala Lumpur, Malaysia
[2] Univ Kebangsaan Malaysia, Fac Hlth Sci, Ctr Rehabil & Special Needs, Optometry & Vis Sci Programme, Kuala Lumpur, Malaysia
[3] Aberystwyth Univ, Ctr Ageing & Dementia Res, Aberystwyth, Wales
[4] Univ Putra Malaysia, Malaysian Res Inst Ageing, Serdang, Selangor, Malaysia
[5] Univ Sains Malaysia, Sch Social Sci, Gelugor, Pulau Pinang, Malaysia