The concurrent validity of the survey version of the Clifton Assessment Procedures for the Elderly (CAPE)

The concurrent validity of the survey version of the Clifton Assessment Procedures for the Elderly (CAPE) was assessed by comparing the performance of four groups of elderly women selected to represent different levels of impairment and dependency. It was found to discriminate significantly among patients with severe (n = 100), moderate (n = 40), mild (n = 50) and no (n = 20) dementia; it also significantly distinguished between patients with severe and moderate dementia and patients with physical disability (n = 100) and with signs of 'institutionalization' (n = 25). Patients in the severe, moderate, mild and no dementia groups had all been judged clinically to have been placed appropriately as, respectively, geriatric psychiatry in-patients, geriatric psychiatry day-patients or local authority home residents, or as being able to live independently in the community. However, although the survey version dependency grade is intended for use in allocating patients to health and social services facilities, overall agreement between grades and clinically determined placement was only 63 per cent. Thus while the survey version may be useful in discriminating among groups of elderly people of different levels of impairment for research or screening purposes, its clinical value with individual patients remains uncertain.