Prevalence of delayed neurodevelopment in children from Bogotá, Colombia, South America
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Published on: August 25, 2014
Alberto Velez van Meerbeke1, Claudia Talero-Gutierrez, Rodrigo Gonzalez-Reyes
1School of Medicine, Universidad del Rosario, Bogotá, Colombia. avelez@urosario.edu.co
Insights
Undiagnosed neurodevelopmental delay disorders (NDD) affect nearly 33 in 1000 preschoolers in Bogotá, Colombia. Early identification and intervention are crucial public health priorities to prevent long-term academic and social challenges.
Area of Science:
- Pediatrics
- Developmental Neuroscience
- Public Health
Background:
- Undiagnosed neurodevelopmental delay disorders (NDD) in children lead to significant academic and social challenges.
- Early identification of NDD is critical to mitigate familial, social, and work-related problems.
Purpose of the Study:
- To determine the prevalence of neurodevelopmental delay disorders (NDD) among preschoolers in Bogotá, Colombia.
- To highlight the public health implications of undiagnosed NDD in a nonindustrialized country.
Main Methods:
- A cross-sectional study screened 2,043 preschoolers aged under 60 months in various socioeconomic areas of Bogotá.
- Parents and teachers were interviewed, and suspected cases were evaluated using the abbreviated neurodevelopmental scale (EAD-1).
Main Results:
- An estimated prevalence of 32.8 per 1,000 children under 5 years was found for NDD.
- Specific deficits included auditory language delay (18.6 per 1,000), fine motor skills (10.3 per 1,000), and personal-social interactions (9.8 per 1,000).
- 67 children (23.3% of screened) showed one or more abnormal developmental items.
Conclusions:
- Neurodevelopmental delay disorders (NDD) are present in apparently healthy children in Colombian nurseries and kindergartens.
- The study identified a substantial public health problem due to the lack of developmental milestone evaluation in Colombia.
- Effective intervention strategies are necessary to address the prevalence of NDD and its consequences.
Background:
Undiagnosed children with neurodevelopment delay disorders (NDD) frequently experience school difficulties, leading to school desertion or academic failure with subsequent familial, social and work-related problems.
Methods:
In 2004-2005, we conducted a cross-sectional study to determine the prevalence of developmental delay among preschoolers in Bogotá (Colombia); convenience samples in several socioeconomic areas of the city were screened to define the prevalence of NDD. Parents and teachers were interviewed to identify children with possible NDD. Selected children were evaluated with a neurodevelopmental abbreviated scale (EAD-1).
Results:
We screened 2,043 preschool children aged <60 months; 288 suspected cases were examined individually using the EAD-1 scale. One or more abnormal items (alert category) were found in 67 (23.3%) children, for an estimated prevalence of 32.8 per thousand children <5 years of age, including deficits in gross motor function (9.3 per thousand), personal-social interactions (9.8 per thousand), fine motor skills (10.3 per thousand), auditory language delay (18.6 per thousand) and overall delay (10.8 per thousand).
Conclusions:
There is limited information regarding the prevalence of neurodevelopmental delay in nonindustrialized countries. The prevalence obtained in Bogotá, Colombia, is within the expected range; however, we identified NDD among apparently healthy children from nurseries and kindergartens, who had previously been undiagnosed and untreated. Lack of evaluation of developmental milestones in children in Colombia is a substantial public health problem that will require effective intervention.
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