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Published on: June 20, 2020
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.
Background:
Regarding the short- and long-term benefits of early intervention for childhood developmental disorders, this study was carried out to determine the prevalence of undetected developmental delays by the standardized form of the Persian version of the Ages and Stages Questionnaires (ASQ) in Iranian children.
Methods:
This was a cross-sectional study. The study was carried out on 11 000, 4- to 60-month-old children; in 19 age groups, in 41 selected cities throughout the country. Ninety physicians were invited from each of the selected cities to Tehran in groups, and trained about the ASQ scoring, during a 2-day workshop. The questionnaires were completed at healthcare settings by parents of children who were apparently normal (lacking any gross developmental disorders) under the supervision of the physicians who consequently scored each child. The response rate was 95% (10 516 parents).
Results:
Among the 10 516 children studied, 5035 (47.87%) were girls. The average percentage of children delayed in the communication, gross motor, fine motor, problem-solving and social-personal domains was 3.87%, 4.04%, 4.31%, 4.15% and 3.69%, respectively, when considering the Iranian cut-off points. In the 19 age-domain groups, most frequently in the personal-social and fine motor domains (in terms of domains), and also most frequently at 36 and 48 months of age (in terms of age ranges), girls showed significantly higher scores than boys. Boys showed significantly higher scores in two age-domain groups (gross motor domain at 20 and 22 months of age).
Conclusions:
The prevalence of undetected developmental delays in Iranian children screened by the ASQ questionnaires ranged from 3.69% to 4.31% in different developmental domains.
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