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Polanczyk, Guilherme V.; Salum, Giovanni A.; Sugaya, Luisa S.; Caye, Arthur; Rohde, Luis A. – Journal of Child Psychology and Psychiatry, 2015
Background: The literature on the prevalence of mental disorders affecting children and adolescents has expanded significantly over the last three decades around the world. Despite the field having matured significantly, there has been no meta-analysis to calculate a worldwide-pooled prevalence and to empirically assess the sources of…
Descriptors: Meta Analysis, Mental Disorders, Children, Adolescents
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Nigg, Joel; Nikolas, Molly; Burt, S. Alexandra – Journal of the American Academy of Child & Adolescent Psychiatry, 2010
Objective: To summarize and evaluate the state of knowledge regarding the role of measured gene-by-environment interactions in relation to attention-deficit/hyperactivity disorder. Method: A selective review of methodologic issues was followed by a systematic search for relevant articles on measured gene-by-environment interactions; the search…
Descriptors: Evidence, Attention Deficit Hyperactivity Disorder, Risk, Interaction