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Developmental trajectories of children with Down syndrome by socio-economic status: the case of Latin America.

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  • Author(s): Arango PS;Arango PS; Aparicio A; Aparicio A; Tenorio M; Tenorio M
  • Source:
    Journal of intellectual disability research : JIDR [J Intellect Disabil Res] 2018 Sep; Vol. 62 (9), pp. 759-774. Date of Electronic Publication: 2018 Jul 08.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Blackwell Scientific Publications on behalf of the Royal Society for Mentally Handicapped Children and Adults Country of Publication: England NLM ID: 9206090 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1365-2788 (Electronic) Linking ISSN: 09642633 NLM ISO Abbreviation: J Intellect Disabil Res Subsets: MEDLINE
    • Publication Information:
      Original Publication: Oxford, UK : Blackwell Scientific Publications on behalf of the Royal Society for Mentally Handicapped Children and Adults, 1992-
    • Subject Terms:
      Language Development* ; Social Behavior*; Cognition/*physiology ; Down Syndrome/*physiopathology ; Economic Status/*statistics & numerical data ; Motor Skills/*physiology; Child ; Child, Preschool ; Down Syndrome/psychology ; Female ; Humans ; Infant ; Latin America ; Male ; Socioeconomic Factors
    • Abstract:
      Background: Several studies show that socio-economic status (SES) is related to the developmental trajectories of children with typical development (TD). However, few studies have analysed this relationship regarding children with neurodevelopmental disorders such as Down syndrome (DS). In this paper, we analyse the impact of SES in the neurodevelopmental trajectories of children with DS in comparison with children with TD.
      Method: Cognitive, language, motor and socio-emotional development were assessed in 31 children with DS between the ages of 15 and 80 months from high to low SES backgrounds. Data from this group were compared with data from a sample of 72 children with TD randomly selected from the Longitudinal Survey of Early Childhood. We analyse and compare these two groups using the developmental trajectories method RESULTS: The results show delayed onsets for the four abilities measured in children with DS compared with children with TD from high to low SES. In the comparison of the developmental trajectories, we found that the differences between the neurodevelopmental trajectories in DS and TD vary according to SES. High SES show differences only in language development, while low SES show significant differences in cognitive, language and socio-emotional development.
      Conclusions: The results indicate that SES is a factor that could impact the developmental trajectories of children with DS. Although the differences between children with DS and with TD are similar at the beginning regardless of SES, the developmental trajectories are slower in children with DS of low SES than in children of high SES. We argue that the differences are related to the complex interaction of several biological and cultural factors associated with SES. Some specific hypotheses about nutrition, health care access, quality of education and parenting practices are presented, but more research in this area is needed to fully understand these results.
      (© 2018 MENCAP and International Association of the Scientific Study of Intellectual and Developmental Disabilities and John Wiley & Sons Ltd.)
    • Contributed Indexing:
      Keywords: Down syndrome; developmental trajectories; socio-economic status
    • Publication Date:
      Date Created: 20180710 Date Completed: 20191113 Latest Revision: 20191113
    • Publication Date:
      20231215
    • Accession Number:
      10.1111/jir.12516
    • Accession Number:
      29984471