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Laporta, Mariana L.; Sprung, Juraj; Fejedelem, Caroline A.; Henning, Dustin T.; Weaver, Amy L.; Hanson, Andrew C.; Schroeder, Darrell R.; Myers, Scott M.; Voigt, Robert G.; Weingarten, Toby N.; Flick, Randall P.; Warner, David O. – Journal of Autism and Developmental Disorders, 2022
This study tested the hypothesis that exposure of children prior to their third birthday to procedures requiring general anesthesia is associated with an increased incidence of autism spectrum disorder (ASD) in later life. This study employed a nested, 1:2 matched-case control study design using ASD cases identified in a population-based birth…
Descriptors: Anesthesiology, Autism Spectrum Disorders, Correlation, Infants
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Soke, Gnakub N.; Maenner, M. J.; Christensen, D.; Kurzius-Spencer, M.; Schieve, L. A. – Journal of Autism and Developmental Disorders, 2017
We compared early-diagnosed autism spectrum disorder (ASD) (defined as diagnosis by age 4 years) between the 2002 and 2006 birth cohorts, in five sites of the Autism and Developmental Disabilities Monitoring Network. In the 2002 cohort, the prevalence/1000 of early-diagnosed ASD was half the 8-year-old prevalence (7.2 vs. 14.7, prevalence ratio…
Descriptors: Autism, Pervasive Developmental Disorders, Incidence, Clinical Diagnosis
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Visser, Janne C.; Rommelse, Nanda; Vink, Lianne; Schrieken, Margo; Oosterling, Iris J.; Gaag, Rutger J.; Buitelaar, Jan K. – Journal of Autism and Developmental Disorders, 2014
This study examined the differential contribution of pre-and perinatal risks in narrowly versus broadly defined autism spectrum disorder (ASD) and across core symptom domains, IQ and co-morbid problems. Children with a DSM-IV diagnosis of autistic disorder (AD) (n = 121) or pervasive developmental disorder not otherwise specified (PDD-NOS)…
Descriptors: Autism, Pervasive Developmental Disorders, Children, Symptoms (Individual Disorders)