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Prevalence of Attention-Deficit/Hyperactivity Disorder Symptoms in Preschool-aged Iranian Children
Alipasha Meysamie1, Maryam Daneshvar Fard, Mohammad-Reza Mohammadi
1Department of Community Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Insights
Parent and teacher evaluations show significant differences in attention-deficit/hyperactivity disorder (ADHD) symptom prevalence among Iranian preschoolers. Multiple setting screenings are recommended for accurate ADHD identification in children.
Area of Science:
- Pediatric Psychology
- Child Psychiatry
- Developmental Pediatrics
Background:
- Attention-deficit/hyperactivity disorder (ADHD) is a prevalent neurodevelopmental disorder.
- Understanding ADHD symptom prevalence in preschool children is crucial for early intervention and management strategies.
- Epidemiologic data on ADHD in preschool populations, particularly from diverse cultural contexts, is essential.
Purpose of the Study:
- To determine the prevalence of attention-deficit/hyperactivity disorder (ADHD) symptoms in Iranian preschool children.
- To compare ADHD symptom prevalence based on parent versus teacher evaluations.
- To identify factors associated with ADHD symptoms in this age group.
Main Methods:
- A multistage stratified cluster random sampling method was used to select 37 kindergartens.
- A total of 2213 preschool children aged 3-6 years were initially included in the study.
- A 19-item observer-rating questionnaire was administered to parents and teachers to assess ADHD symptoms over the past six months.
Main Results:
- Parent evaluations indicated ADHD symptoms in 25.8% of children, while teacher evaluations identified 17%.
- Significant discrepancies were observed between parent and teacher assessments of ADHD symptoms.
- Factors such as child rank among siblings, mother's education, and interest in aggressive TV programs were associated with ADHD symptoms.
Conclusions:
- There is a notable discrepancy in ADHD symptom prevalence estimates between parent and teacher evaluations in preschool children.
- ADHD screening should ideally be conducted in multiple settings (e.g., home and school) to ensure comprehensive identification.
- Further investigation is warranted to understand the reasons for these discrepancies and refine diagnostic approaches.
Objective:
The aim of this study was to determine the prevalence of attention-deficit/hyperactivity disorder (ADHD) symptoms in Iranian preschool children based on evaluations by parents and teachers because a thorough understanding of epidemiologic features of ADHD symptoms in preschool children is important for prevention and management.
Methods:
Children between the ages of three and six attending kindergarten participated in this study. For the survey, 37 kindergartens were selected by multistage (stratified cluster random) sampling, consisting of 2213 children with a design effect equal to 1.5. A 19-item observer-rating questionnaire was generated to assess ADHD symptoms in children within the last 6 months. This questionnaire was used by both teachers and parents to assess ADHD behavior in participating children.
Findings:
Of 1403 children aged 3-6 years, 362 were classified as having ADHD symptoms according to their parent evaluation [25.8% (23.6-28.1%)] and 239 according to their teachers evaluation [17% (14.1-20.4%)]. Child rank among siblings, mother's education level, and interest in aggressive television programs were all independent explanatory variables according to parents' evaluation. Gender, parent education, child rank, single parent and interest in aggressive television programs were all independent explanatory variables according to teachers' evaluation.
Conclusion:
Our findings reveal a large discrepancy in the prevalence of ADHD symptoms in preschool children based on evaluation by parents and teachers. Thus, it seems that the ADHD screening should be performed in multiple settings in order to identify children who need further investigations.
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