Résumé :
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[BDSP. Notice produite par INIST R0xQvCZt. Diffusion soumise à autorisation]. This study was conducted as part of the Medical Research Council Cognitive Function and Ageing Study. To compare information given by elderly people on their past and current health and family history of illness with similar information obtained from a relative, friend or carer. Screening and assessment stages of a prevalence study. Three urban and two rural areas of England and Wales. A subsample weighted by age and cognitive status of random population samples of people >=65 years, living in their own home or in a residential or nursing home, interviewed between 1991 and 1994. A relative, friend or carer identified by each elderly person to provide proxy information. Computerized schedules including items on demographic details, cognitive function, lifetime illnesses, current health problems and family history of illness. The rate of proxy'don't know'responses and the agreement between the elderly person and their proxy were calculated for each item, both for the overall sample and for subgroups based on characteristics of the respondent and of the proxy and on the relationship between them. Higher'don't know'rates were found to be particularly associated with more distant relationships, questions on family history, a shorter length of time known and a lack of co-residence. Agreement was strongly related to the nature of the question and less to co-residence, with other factors such as relationship having much smaller effects. (...)
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