Abstract

There are 3 variants of Primary Progressive Aphasia (PPA) characterized accordingly to the linguistic domain that is predominantly altered: non-fluent, logopenic, and semantic. A tool that helps in this classification is the Sydney Language Battery (Sydbat), which is not validated in Chile. This study analyzes the possible relationship between age and years of schooling and healthy adults' performance obtained in the Sydbat subtests. 38 healthy adults participated in the test. The average age was 56.8 years (SD = 8.3), with a mean of 13.8 years of schooling (SD = 3.9). They all resided in the Metropolitan Region. Pearson and Spearman's correlations were performed to explore the correlation between subtest performance, ageand schooling. Considering the variability in performance in the subtests, univariate and multivariate models were appliedSignificant correlations were found between age and the comprehension subtest (p <0.05) and between years of schooling and the semantic association (p <0.001) and naming (p <0.01) subtests. In participants with more than 12 years of schooling, the score in the semantic association subtest varied approximately 2 points compared to people with less than 12 years of schooling (p <0.01). We conclude that the variations in test performance depend on age and education level. The older the participants are, the lower their performance on the comprehension subtest. The higher the schooling level, the higher the performance on the semantic association and naming subtests. The validation process for Sydbat should considerer these effects.