A. Bennett et al., THE MATTIS-DEMENTIA-RATING-SCALE IN NURSING-HOME OCTOGENARIANS AND NONAGENARIANS - EFFECTS OF AGE AND EDUCATION, Journal of geriatric psychiatry and neurology, 10(3), 1997, pp. 114-118
Despite their increasing representation in the population, Little is k
nown about the neuropsychological test performance of the oldest old,
particularly those who Live in residential settings, Limited published
data and clinical experience suggest that this group is more likely t
o perform in the impaired range on standardized tests when cutoffs dev
eloped with younger groups are used, We examined the Dementia Rating S
cale (DRS) performance of 82 nondemented nursing home residents, aged
80 to 99, with a mean education level of 11 years. Using published nor
ms and cutoffs, a large percentage of this sample performed in the imp
aired range, particularly on the initiation and conceptualization subt
ests and on the total score. Education, but not age, was significantly
related to performance in this sample. Percentages of patients miscla
ssified were substantial in all groups, but were higher in those with
less than 13 years of education. Using a lower total-score cutoff of 1
10 reduced the percentage of misclassifications markedly We recommend
the development and use of revised cutoff scares for the evaluation of
very elderly nursing home residents.