Abstract
Prevalence of developmental disorders (DDs) has been increasing worldwide. This study identifies a trend in their prevalence and incidence, using nationwide population-based data to analyze the characteristics of children with DDs in Korea. The prevalence of DDs steadily increased by more than four times (from 0.6 to 2.5) from 2003 to 2017. Boys had higher incidence than girls throughout the period, during which the gap increased from 19.1 to 31.4%. The incidence also increased by the size of city and medical insurance quartile. The ratio of autism spectrum disorder, developmental delay and language disorders among the total incident cases of DDs increased by 13.7%, 817.6%, and 30.7%, respectively, indicating their contribution to the trend of increasing prevalence.
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04 November 2020
The original version of the article unfortunately contained a mistake in the review committee number of the National Health Insurance Sharing Service.
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All authors whose names appear on the submission. (1) made substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data; or the creation of new software used in the work; (2) drafted the work or revised it critically for important intellectual content; (3) approved the version to be published; and (4) agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved. SSR conceptualized and designed the study, analyzed the data, and drafted, reviewed and revised the manuscript. S-BH provided expertise, supervised data analysis and interpretation of the results, and critically reviewed and revised the manuscript for intellectual content. JYY conceptualized and designed the study, coordinated and supervised data analysis, and critically reviewed the manuscript. All authors approved the final manuscript as submitted and agree to be accountable for all aspects of the work.
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This study was done after approval of the Institutional Review Board of Seoul National University (IRB No. E1811/002-001). This article does not contain any studies with human participants or animals performed by any of the authors.
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Rah, S.S., Hong, SB. & Yoon, J.Y. Prevalence and Incidence of Developmental Disorders in Korea: A Nationwide Population-Based Study. J Autism Dev Disord 50, 4504–4511 (2020). https://doi.org/10.1007/s10803-020-04444-0
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DOI: https://doi.org/10.1007/s10803-020-04444-0