Prevalence of undetected developmental delays in Iranian children

F Sajedi1, R Vameghi, A Kraskian Mujembari

  • 1Pediatric Neurorehabilitation Research Center, University of Social Welfare & Rehabilitation Sciences, Tehran, Iran.

Insights

This study screened 10,516 Iranian children using the Ages and Stages Questionnaires (ASQ), finding 3.69%–4.31% with developmental delays. Early detection through ASQ is crucial for childhood developmental disorders.

Area of Science:

  • Pediatric developmental screening
  • Public health surveillance of child development

Background:

  • Early intervention for childhood developmental disorders offers significant short- and long-term benefits.
  • Undetected developmental delays can impede a child's progress and long-term outcomes.

Purpose of the Study:

  • To determine the prevalence of undetected developmental delays in Iranian children.
  • To assess the utility of the Persian version of the Ages and Stages Questionnaires (ASQ) for screening.

Main Methods:

  • A cross-sectional study involving 10,516 children aged 4–60 months across 41 cities.
  • Physicians were trained to administer and score the Persian ASQ to parents of apparently healthy children.
  • A 95% response rate was achieved, with data collected in healthcare settings.

Main Results:

  • The prevalence of developmental delays ranged from 3.69% (social-personal) to 4.31% (fine motor) across domains.
  • Girls showed significantly higher ASQ scores than boys in personal-social and fine motor domains at specific ages (36 and 48 months).
  • Boys exhibited higher scores in the gross motor domain at 20 and 22 months of age.

Conclusions:

  • The prevalence of developmental delays identified by ASQ screening in Iranian children is between 3.69% and 4.31%.
  • The findings highlight the importance of using standardized screening tools like ASQ for early identification of developmental delays in diverse populations.
Abstract

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