ASQ-3 developmental outcomes at six months in a Bulgarian infant cohort: a cross-cultural comparison with U.S. norms - Report - MDSpire

Developmental Outcomes at Six Months in Bulgarian Infants: A Cross-Cultural Analysis Against U.S. Norms Using the ASQ-3

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  • Tatyana Itova

  • July 20, 2026

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Developmental Outcomes at Six Months in Bulgarian Infants: A Cross-Cultural Analysis

Overview

This study evaluates the developmental outcomes of Bulgarian infants at six months using the ASQ-3, comparing results to U.S. norms.

Background

Early developmental screening is crucial for identifying variations in infant development, which can inform preventive pediatric care. The ASQ-3 is widely used for this purpose, but its normative benchmarks are primarily based on U.S. populations.

Data Highlights

DomainEffect Size (Cohen's d)
Gross Motor-0.28
Problem Solving0.30
Birth Weight < 2,500 g-0.63 to -0.88
Communication (Female Advantage)0.37

Key Findings

  • Statistically significant differences in Gross Motor and Problem Solving domains compared to U.S. norms.
  • All observed effect sizes were small.
  • Infants with low birth weight showed moderate-to-large effects in multiple developmental domains.
  • Gestational age differences were not clinically meaningful after correction for age.
  • A small female advantage was noted in the Communication domain.

Clinical Implications

The findings support the use of ASQ-3 in Bulgarian clinical settings.

Conclusion

The study examines the utility of ASQ-3 in diverse cultural settings.

Related Resources & Content

  1. BMJ Paediatrics Open, 2026 -- Assessment of the effects of ethnicity, home language, and socioeconomic status on neurodevelopmental performance in a multiethnic population
  2. Frontiers in Psychiatry, 2026 -- Cross-cultural associations between behavioural, emotional, and cognitive differences in autistic children and parental wellbeing: evidence from five countries
  3. BMJ Paediatrics Open, 2026 -- Global Study on Newborn HOspitalization and Parental Experiences (HOPE): rationale and design of a multinational cross-sectional mixed-methods online survey
  4. Frontiers in Pediatrics, 2026 -- Factors associated with cognitive developmental delay risk in 12-month-old infants
  5. AAP, 2025 -- Periodicity Schedule
  6. Ages & Stages Questionnaires®, Third Edition (ASQ®-3), 2025
  7. Translations of ASQ®, 2018
  8. https://publications.aap.org/pediatriccare/pages/periodicity-schedule?utm_source=openai
  9. Ages & Stages Questionnaires®, Third Edition (ASQ®-3)
  10. Translations of ASQ®

Original Source(s)

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