• Hui-Ju Chen, Mary Hsin-Ju Ko, Sung-Tse Li, Nan-Chang Chiu, and Kun-Long Hung.
• Division of Pediatric Neurology, Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan; Department of Medicine, Mackay Medical College, New Taipei, Taiwan. Electronic address: hjuchen@ms65.hinet.net.
• J Formos Med Assoc. 2020 Jul 1; 119 (7): 1174-1179.

Background/PurposeThe prevalence of developmental disabilities in Taiwan remains unclear, especially in young children under the age 3. We aimed to study the prevalence of developmental disabilities and verify a useful developmental screening tool in a community setting in Taiwan.MethodsWe conducted a prospective cross-sectional study in northeastern Taiwan from July 2008 to December 2009 in children aged 4 months to 6 years old from well-child visits. We devised a screening program using Taipei City Developmental Screening Checklist for Preschoolers, 2nd Version (Taipei-II), a validated parent-report milestone checklist tailored to the Taiwanese culture and language to assess the prevalence of developmental disabilities in Taiwan. Information about the children's medical conditions and their family were recorded.ResultsA total of 3214 children were recruited, of whom 365 had developmental disabilities, with an overall prevalence of 11.36%. Speech and language delay/disorders were the most common developmental problems followed by motor delays, with prevalence rates of 4.79% and 2.33%, respectively. Low economic status, prematurity and/or small for gestational age and a history of perinatal hypoxia or underlying medical disorders were the main risk factors correlated with developmental delays. However, foreign-born mother and aboriginal families were not important factors for poor developmental outcomes.ConclusionThe prevalence rate of developmental disabilities in northeastern Taiwan was 11.36%. Low economic status, prematurity and/or small for gestational age and a history of underlying medical disorders were the main risk factors correlated with developmental disabilities. Taipei II is an easy-to-use and effective developmental surveillance tool for Taiwanese children.Copyright © 2020. Published by Elsevier B.V.

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