Translation, cultural adaptation and psychometric evaluation of the Leganés cognitive test in a low educated elderly Brazilian population.
OBJECTIVE
To validate the Leganés cognitive test (LCT) for cognitive screening in low educated elderly Brazilians.


METHODS
The study sample was composed of 59 elderly residents from the city of Santa Cruz, in Brazil, with low schooling levels. Reliability was analyzed with a two-day interval between assessments, and concurrent validity was assessed using the Mini Mental State Examination (MMSE).


RESULTS
According to the LCT, the prevalence of dementia was 11.8%. The scale items showed a moderate to strong correlation between domains (p<0.01), and inter-rater reliability exhibited ICC=0.81, 95%CI=0.72-0.88. The factor analysis resulted in two factors: memory and orientation. Interscale agreement was considered poor (k=-0.02), supporting the hypothesis of an educational impact on final MMSE scores.


CONCLUSIONS
The results suggest that LCT has acceptable levels of reliability for use in low-educated Brazilian elderly.
Federal University of Rio Grande do Norte, Natal, RN, Brazil. vesciacaldas@yahoo.com.br
Vescia Vieira de Alencar
VV
Caldas
Maria Victoria
MV
Zunzunegui
Aline do Nascimento Falcão
Ado N
Freire
Ricardo Oliveira
RO
Guerra
D000368:Aged; D001938:Brazil / Q000453:epidemiology; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D003431:Cross-Cultural Comparison; D003704:Dementia / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D004522:Educational Status; D005260:Female; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D007802:Language; D008297:Male; D008403:Mass Screening; D009483:Neuropsychological Tests / Q000592:standards*; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics; D015203:Reproducibility of Results; D014177:Translations