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Preliminary analysis of the effect of age and education in healthy adults on the performance of the Sydney Language Battery (Sydbat) in Chilean Spanish

Authors

  • Camila Foncea-González Carrera de Fonoaudiología, Departamento de Ciencias de la Salud, Pontificia Universidad Católica de Chile, Chile
  • Teresa Paz Julio-Ramos Carrera de Fonoaudiología, Departamento de Ciencias de la Salud, Pontificia Universidad Católica de Chile, Chile
  • Gada Musa-Salech Clínica Universidad de Los Andes, Chile
  • Patricia Lillo Zurita Universidad de Chile
  • Maria Elena León Bustos Pontificia Universidad Católica de Chile
  • Valentina Muñoz Oyarzún Pontificia Universidad Católica de Chile
  • Paula Soto Valdés Pontificia Universidad Católica de Chile
  • Carolina Patricia Méndez Orellana Pontificia Universidad Católica de Chile

Abstract

There are 3 variants of primary progressive aphasia (APP), which are distinguished according to the predominantly altered linguistic domain: non-fluent, logopenic, and semantic. A tool that helps in its classification is the Sydney Language Battery (Sydbat), which is not validated in Chile. The objective of this work is to analyze the possible relationship between age, years of schooling and performance obtained in the Sydbat subtests in healthy adults. 38 healthy adults participated in the test. The average age was 56.8 years (SD = 8.3) and they had a mean of 13.8 years of schooling (SD = 3.9). They all came from the Metropolitan Region. Pearson and Spearman correlations were performed to explore the correlation between subtest performance, age, and schooling. Considering the variability in performance in the subtests, univariate and multivariate models were performed. Significant correlations were found between age and the comprehension subtest (p <0.05) and the years of schooling with the semantic association (p <0.001) and nomination (p <0.01) subtests. In participants with more than 12 years of schooling, the score in the semantic association subtest varied approximately 2 points, with respect to people with less than 12 years of schooling (p <0.01). It is concluded that the variations in test performance depend on age and education. The older participants are, the lower their performance on the comprehension subtest. The higher the schooling, the higher the performance on the semantic association and nomination subtests. The mentioned effect must be considered in the Sydbat validation process.

Keywords:

Primary Progressive Aphasia, Sydbat, dementia, aging, educational attainment