Autism Spectrum Disorder Prevalence Study in Russian Elementary Schools

22.2 per 1,000 children is the estimated ASD prevalence from a two-phase epidemiological study of 34,847 students in grades 1–3 in Russia. The research by Oksana I. Talantseva, published in 2026, utilized instruments like SCQ, ADOS-2, and ADI-R for identification and applied Bayesian regression to correct for screening misclassification.

Use Cases

• Benchmarking ASD prevalence estimates in middle-income countries based on the reported 22.2 per 1,000 figure.
• Analyzing systemic barriers to diagnosis and treatment based on the discussion of limited access and stigma.
• Comparing prevalence across educational settings (mainstream, special education, resource classes) as indicated in the results.
• Evaluating methodological approaches for population-based screening using the described two-phase epidemiological method and Bayesian correction.

Strengths

• Provides a specific, peer-reviewed prevalence estimate of 22.2 per 1,000 with 95% confidence intervals (18.6–36.0).
• Study design involved a large target population of 34,847 students and used well-known diagnostic instruments (SCQ, ADOS-2, ADI-R).
• Methodology includes Bayesian sensitivity analysis to confirm robustness of estimates.

Limitations

• The dataset is a 676.4 KB DOCX file, which is a small supplementary document; the underlying raw data is not provided.
• Row count and column-level documentation are absent; data structure and variables must be inferred from the text.
• The diagnostic phase had a 25.6% participation rate, which may introduce selection bias.

Provenance

Source

Oksana I. Talantseva via figshare.

Collection Method

Two-phase epidemiological approach with screening and diagnostic phases using SCQ, ADOS-2, and ADI-R instruments.

Time Range

Study period not specified; publication date is 2026.

Freshness

Last updated 2026-04-10 05:58:28

Geography

Russia, specifically among elementary school children in grades 1–3.