Prevalence of developmental dyslexia in Spanish: a meta-analysis

Reading learning disorder, or developmental dyslexia, is a chronic, neurobiological, inherited learning difficulty. Its prevalence varies depending on the orthographic transparency of the language, but also between studies with a population of the same language, so we carried out a meta-analysis of...

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Main Author: Cubilla-Bonnetier, Daniel
Format: Online
Language:spa
Published: Instituto de Investigaciones Psicológicas 2024
Subjects:
Online Access:https://revistas.unc.edu.ar/index.php/racc/article/view/38343
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author Cubilla-Bonnetier, Daniel
author_facet Cubilla-Bonnetier, Daniel
author_sort Cubilla-Bonnetier, Daniel
collection Portal de Revistas
description Reading learning disorder, or developmental dyslexia, is a chronic, neurobiological, inherited learning difficulty. Its prevalence varies depending on the orthographic transparency of the language, but also between studies with a population of the same language, so we carried out a meta-analysis of prevalence in Spanish. After reviewing Web of Science, PsycINFO, Scopus, and Google Scholar with the term "prevalence", combined with "dyslexia", "reading" or "learning disorder" and its Spanish translation and applying the exclusion criteria, 16 entries were retained. The results show an estimated prevalence of developmental dyslexia of 7.52% [5.17%; 10.91%] (p < 0.001), higher in the male sex, and a high heterogeneity not explained by any of the moderating variables studied. We reflect on the results of the meta-analysis and the absence of moderating variables that explain the heterogeneity of the prevalence reported in different contexts.
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spelling oai:ojs.revistas.unc.edu.ar:article-383432024-08-31T03:52:15Z Prevalence of developmental dyslexia in Spanish: a meta-analysis Prevalencia de dislexia del desarrollo en español: Un metaanálisis Cubilla-Bonnetier, Daniel dyslexia learning disabilities meta-analysis prevalence reading impairment dificultad aprendizaje dislexia meta-análisis prevalencia trastorno lectura Reading learning disorder, or developmental dyslexia, is a chronic, neurobiological, inherited learning difficulty. Its prevalence varies depending on the orthographic transparency of the language, but also between studies with a population of the same language, so we carried out a meta-analysis of prevalence in Spanish. After reviewing Web of Science, PsycINFO, Scopus, and Google Scholar with the term "prevalence", combined with "dyslexia", "reading" or "learning disorder" and its Spanish translation and applying the exclusion criteria, 16 entries were retained. The results show an estimated prevalence of developmental dyslexia of 7.52% [5.17%; 10.91%] (p < 0.001), higher in the male sex, and a high heterogeneity not explained by any of the moderating variables studied. We reflect on the results of the meta-analysis and the absence of moderating variables that explain the heterogeneity of the prevalence reported in different contexts. El trastorno del aprendizaje de la lectura, o dislexia del desarrollo, es una dificultad de aprendizaje crónica, neurobiológica y hereditaria. La literatura reporta variaciones en su prevalencia ligadas a la transparencia ortográfica de la lengua, pero también entre estudios en la misma lengua, por lo que se propone un metaanálisis de prevalencia en español. Tras efectuar una revisión en Web of Science, PsycINFO, Scopus y Google Académico con el término “prevalence”, combinado con “dyslexia”, “reading”, “learning disorder”, o “neurodevelopmental disorder”, así como aplicar los criterios de exclusión, se retuvieron 16 entradas. Los resultados muestran una prevalencia estimada de dislexia del desarrollo de 7.52% [5.17%; 10.91%], una asimetría por sexos menor de la esperada y una alta heterogeneidad no explicada por las variables moderadoras estudiadas. Se reflexiona sobre los resultados del metaanálisis, así como sobre la ausencia de variables moderadoras que expliquen la heterogeneidad de la prevalencia reportada en distintos contextos. Instituto de Investigaciones Psicológicas 2024-08-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/racc/article/view/38343 10.32348/1852.4206.v16.n3.38343 Argentinean Journal of Behavioral Sciences; Vol. 16 No. 3 (2024): Revista Argentina de Ciencias del Comportamiento; 1-13 Revista Argentina de Ciencias del Comportamiento; Vol. 16 Núm. 3 (2024): Revista Argentina de Ciencias del Comportamiento; 1-13 1852-4206 10.32348/1852.4206.v16.n3 spa https://revistas.unc.edu.ar/index.php/racc/article/view/38343/46455 Derechos de autor 2024 Daniel Cubilla-Bonnetier http://creativecommons.org/licenses/by/4.0
spellingShingle dyslexia
learning disabilities
meta-analysis
prevalence
reading impairment
dificultad aprendizaje
dislexia
meta-análisis
prevalencia
trastorno lectura
Cubilla-Bonnetier, Daniel
Prevalence of developmental dyslexia in Spanish: a meta-analysis
title Prevalence of developmental dyslexia in Spanish: a meta-analysis
title_alt Prevalencia de dislexia del desarrollo en español: Un metaanálisis
title_full Prevalence of developmental dyslexia in Spanish: a meta-analysis
title_fullStr Prevalence of developmental dyslexia in Spanish: a meta-analysis
title_full_unstemmed Prevalence of developmental dyslexia in Spanish: a meta-analysis
title_short Prevalence of developmental dyslexia in Spanish: a meta-analysis
title_sort prevalence of developmental dyslexia in spanish a meta analysis
topic dyslexia
learning disabilities
meta-analysis
prevalence
reading impairment
dificultad aprendizaje
dislexia
meta-análisis
prevalencia
trastorno lectura
topic_facet dyslexia
learning disabilities
meta-analysis
prevalence
reading impairment
dificultad aprendizaje
dislexia
meta-análisis
prevalencia
trastorno lectura
url https://revistas.unc.edu.ar/index.php/racc/article/view/38343
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