Health-related quality of life (HR-QOL) scales are particularly important in older people as global outcome measures for interventions. It is known that people with mild to moderate dementia can provide valid assessments of their own QOL, but it is unclear whether these instruments are useful in those with severe dementia.
Centre for Ageing and Mental Health Sciences, Department of Mental Health Sciences, University College London, Archway Campus, Holborn Union Building, Highgate Hill, London N19 5LW, UK.
