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Virk, Jasveer; Liew, Zeyan; Olsen, Jørn; Nohr, Ellen A.; Catov, Janet M.; Ritz, Beate – Autism: The International Journal of Research and Practice, 2016
Objective: To evaluate whether early folic acid supplementation during pregnancy prevents diagnosis of autism spectrum disorders in offspring. Methods: Information on autism spectrum disorder diagnosis was obtained from the National Hospital Register and the Central Psychiatric Register. We estimated risk ratios for autism spectrum disorders for…
Descriptors: Autism, Pervasive Developmental Disorders, Pregnancy, Nutrition
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Rodriguez, A.; Olsen, J.; Kotimaa, A. J.; Kaakinen, M.; Moilanen, I.; Henriksen, T. B.; Linnet, K. M.; Miettunen, J.; Obel, C.; Taanila, A.; Ebeling, H.; Jarvelin, M. R. – Journal of Child Psychology and Psychiatry, 2009
Background: Studies concerning whether exposure to low levels of maternal alcohol consumption during fetal development is related to child inattention and hyperactivity symptoms have shown conflicting results. We examine the contribution of covariates related to social adversity to resolve some inconsistencies in the extant research by conducting…
Descriptors: Smoking, Hyperactivity, Attention Deficit Disorders, Drinking