Study Design


Below you will find information on the study design of CFAS Wales, to find more about what the study is about please visit the CFAS Wales homepage

CFAS Wales aims to interview a representative sample of 3,750 people aged 65 and over in two areas in Wales (Gwynedd and Swansea).  Using established and standardised techniques it will collect data that will enable the investigation of cognitive impairment, depression, physical disability and healthy active life expectancy for the whole group and within social groups.  It will provide a foundation for other collaborative studies that investigate biomarkers and other early indications of risk of cognitive decline, such as imaging. It will investigate factors that may delay the onset of dementia, specifically focussing on the role of bilingualism and social networks. As the participants reside in a bilingual area this is a key opportunity.

Studies of incidence and natural history require interviews at a minimum of two points in time, sufficiently separated for change in mental/physical function to be identifiable.