scholarly journals Normative data for middle-aged Brazilians in the Mattis Dementia Rating Scale

2020 ◽  
Vol 14 (4) ◽  
pp. 350-357
Author(s):  
Guilherme Almeida Carvalho ◽  
Paulo Caramelli

ABSTRACT. Despite the advances in the diagnosis of dementia, neuropsychological assessment remains an important tool. The Mattis Dementia Rating Scale (DRS) was designed to evaluate people with suspected dementia and allows for the analysis of different cognitive domains. Considering the numerous cases of early-onset dementia, specific reference standards aimed at the middle-aged population are necessary. Objective: To provide normative data for the middle-aged Brazilian population in DRS and to investigate the influence of education level, age, sex, and intelligence quotient (IQ) on the results. Methods: Overall, 120 healthcare professionals and caregivers from a hospital, who were healthy, aged between 45 and 64 years, and had at least four years of formal education, were included in the study. They were equally divided into six groups. In each age group (45–54 and 55–64 years), there were three educational levels: 4–7, 8–11, and 12 or more (12+) years of formal education. The results are presented as mean values, standard deviations, and percentiles. Comparisons between groups were carried out for age, sex, and education level. Age, years of formal education, and IQ were also analyzed as continuous variables by Spearman's correlation. Results: Concerning education level, the comparison between groups showed differences in the results for the total scale and subscales, except for the Construction subscale. No differences were found for age and sex. Correlations observed for years of formal education and IQ were similar. No correlation was found for age. Conclusions: The present study contributes to the evaluation of dementia concerning people younger than 65 years of age and reinforces the importance of education in the interpretation of the scores.

2015 ◽  
Vol 39 (5-6) ◽  
pp. 303-311 ◽  
Author(s):  
Ondrej Bezdicek ◽  
Jiri Michalec ◽  
Tomas Nikolai ◽  
Petra Havránková ◽  
Jan Roth ◽  
...  

Background/Aims: The aim of the present study was to provide normative data and determine the validity of the Czech version of the Mattis Dementia Rating Scale 2 (czDRS-2) in screening for mild cognitive impairment in Parkinson's disease (PD-MCI) based on the Movement Disorder Society (MDS) Level II criteria. Methods: For validation purposes, 41 healthy controls (HC), 46 patients with PD-NI (Parkinson's disease, no impairment) and 41 patients with PD-MCI (all groups assessed by the MDS Level II criteria for PD-MCI) were matched according to age and education. Results: With screening and diagnostic cutoff scores determined at ≤139 points, the czDRS-2 showed a sensitivity of 78% and a specificity of 88% in the detection of PD-MCI versus HC and a sensitivity of 78% and a specificity of 76% in the detection of PD-MCI versus PD-NI. The AUC (95% confidence interval) for the czDRS-2 was 84% (75-93) and 82% (73-91), respectively. We report percentile values for 286 subjects from the Czech population stratified by education level. Conclusion: Our results show that the czDRS-2 is a valid instrument at Level I for screening PD-MCI and support its construct validity and diagnostic equivalence in a cross-cultural setting.


2013 ◽  
Vol 7 (4) ◽  
pp. 374-379 ◽  
Author(s):  
Maria Paula Foss ◽  
Viviane Amaral de Carvalho ◽  
Thais Helena Machado ◽  
Geraldo Cássio dos Reis ◽  
Vitor Tumas ◽  
...  

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.


1998 ◽  
Vol 20 (4) ◽  
pp. 536-547 ◽  
Author(s):  
John A. Lucas ◽  
Robert J. Ivnik ◽  
Glenn E. Smith ◽  
Daryl L. Bohac ◽  
Eric G. Tangalos ◽  
...  

Neurology ◽  
1994 ◽  
Vol 44 (5) ◽  
pp. 964-964 ◽  
Author(s):  
R. Schmidt ◽  
W. Freidl ◽  
F. Fazekas ◽  
B. Reinhart ◽  
P. Grieshofer ◽  
...  

1998 ◽  
Vol 13 (1) ◽  
pp. 41-42 ◽  
Author(s):  
J.A. Lucas ◽  
R.J. Ivnik ◽  
G.E. Smith ◽  
D.L. Bohac

2018 ◽  
Vol 34 (2) ◽  
pp. 285-291 ◽  
Author(s):  
Taylor R. Hendershott ◽  
Delphine Zhu ◽  
Seoni Llanes ◽  
Cyrus P. Zabetian ◽  
Joseph Quinn ◽  
...  

2002 ◽  
Vol 17 (7) ◽  
pp. 685-686 ◽  
Author(s):  
W. Freidl ◽  
W.-J. Stronegger ◽  
A. Berghold ◽  
B. Reinhart ◽  
K. Petrovic ◽  
...  

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