J Autism Dev Disord
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Abstract
While studies report associations between perinatal outcomes and both autism spectrum disorder (ASD) and intellectual disability (ID), there has been little study of ASD with versus without co-occurring ID. We compared perinatal risk factors among 7547 children in the 2006-2010 Autism and Developmental Disability Monitoring Network classified as having ASD\uc2\ua0+\uc2\ua0ID, ASD only, and ID only. Children in all three groups had higher rates of preterm birth (PTB), low birth weight, small-for-gestational-age, and low Apgar score than expected based on the US birth cohort adjusted for key socio-demographic factors. Associations with most factors, especially PTB, were stronger for children with ID only than children with ASD\uc2\ua0+\uc2\ua0ID or ASD only. Associations were similar for children with ASD\uc2\ua0+\uc2\ua0ID and ASD only.CC999999/Intramural CDC HHS/United States2016-08-01T00:00:00Z25739693PMC460849