Foss MP, de Carvalho VA, Machado TH, Dos Reis GC, Tumas V, Caramelli P, Nitrini R, Porto CS. Mattis dementia rating scale (DRS) normative data for the brazilian middle-age and elderly populations.
Dement Neuropsychol 2013;
7:374-379. [PMID:
29213861 PMCID:
PMC5619498 DOI:
10.1590/s1980-57642013dn74000004]
[Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE
To expand norms for the Mattis Dementia Rating Scale (DRS) for the Brazilian
middle-age and elderly populations.
METHODS
The DRS was administered to 502 individuals without cognitive deficits, 312
women and 190 men, aged 50 years or over and with educational level ranging
from 0 to 13 years or more. The sample was composed of subjects who
participated in other studies, from Caeté (Minas Gerais state),
Ribeirão Preto (São Paulo state) and São Paulo
(São Paulo state). Participants were divided into four schooling
groups (illiterate, 1 to 4 years, 5 to 12 years and 13 years or more). The
subjects were divided into four groups according to age (50 to 60, 61 to 70,
71 to 80, and 80 years or over).
RESULTS
Normative data for DRS scores are expressed as percentile values. The group
with lowest schooling and subjects older than 80 years had the worst
scores.
CONCLUSION
As expected, age and education were strongly correlated with DRS scores.
Illiterates and older old individuals performed worse than the other groups.
These data might help to improve the accuracy of the diagnosis of cognitive
impairment and dementia in Brazilian middle-age and elderly populations.
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