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. conclusion: the results suggest that lct has acceptable levels of reliability for use in low-educated brazilian elderly.