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. 2014 Nov 25;9(11):e113360.
doi: 10.1371/journal.pone.0113360. eCollection 2014.

The INTERGROWTH-21st Project Neurodevelopment Package: a novel method for the multi-dimensional assessment of neurodevelopment in pre-school age children

Collaborators, Affiliations

The INTERGROWTH-21st Project Neurodevelopment Package: a novel method for the multi-dimensional assessment of neurodevelopment in pre-school age children

Michelle Fernandes et al. PLoS One. .

Abstract

Background: The International Fetal and Newborn Growth Consortium for the 21st Century (INTERGROWTH-21st) Project is a population-based, longitudinal study describing early growth and development in an optimally healthy cohort of 4607 mothers and newborns. At 24 months, children are assessed for neurodevelopmental outcomes with the INTERGROWTH-21st Neurodevelopment Package. This paper describes neurodevelopment tools for preschoolers and the systematic approach leading to the development of the Package.

Methods: An advisory panel shortlisted project-specific criteria (such as multi-dimensional assessments and suitability for international populations) to be fulfilled by a neurodevelopment instrument. A literature review of well-established tools for preschoolers revealed 47 candidates, none of which fulfilled all the project's criteria. A multi-dimensional assessment was, therefore, compiled using a package-based approach by: (i) categorizing desired outcomes into domains, (ii) devising domain-specific criteria for tool selection, and (iii) selecting the most appropriate measure for each domain.

Results: The Package measures vision (Cardiff tests); cortical auditory processing (auditory evoked potentials to a novelty oddball paradigm); and cognition, language skills, behavior, motor skills and attention (the INTERGROWTH-21st Neurodevelopment Assessment) in 35-45 minutes. Sleep-wake patterns (actigraphy) are also assessed. Tablet-based applications with integrated quality checks and automated, wireless electroencephalography make the Package easy to administer in the field by non-specialist staff. The Package is in use in Brazil, India, Italy, Kenya and the United Kingdom.

Conclusions: The INTERGROWTH-21st Neurodevelopment Package is a multi-dimensional instrument measuring early child development (ECD). Its developmental approach may be useful to those involved in large-scale ECD research and surveillance efforts.

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Conflict of interest statement

Competing Interests: The authors have read the Journal's policy and the authors of this manuscript have the following competing interests: Aureli Soria-Frisch, David Ibanez and Javier Acedo are employed by Neuroscience Business Unit, Starlab, Spain. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Figures

Figure 1
Figure 1. Distribution of the prevalence of severe neurodevelopmental impairment per 1,000 children in select countries.
Distribution of prevalence of severe neurodevelopmental impairment per 1,000 children in select countries. Taken from Durkin, The Epidemiology of Developmental Disabilities in Low-Income Countries, Mental Retardation and Developmental Disabilities Research Reviews p. 207 (2002) .
Figure 2
Figure 2. Conceptual and methodological challenges in the assessment of early child development in the context of the INTERGROWTH-21st Project.
Conceptual and methodological challenges in the multi-dimensional assessment of early childhood neurodevelopment across low-, middle- and high-income settings (black boxes) and the unique opportunity provided by the INTERGROWTH-21st Project to explore some of these issues (red boxes).
Figure 3
Figure 3. Components of the INTERGROWTH-21st Neurodevelopment Package.

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