Article
Prenatal smoking might not cause attention-deficit/hyperactivity disorder: evidence from a novel design.
Biological psychiatry - 15 Oct 2009
Thapar Anita, Rice Frances, Hay Dale, Boivin Jacky, Langley Kate, van den Bree Marianne, Rutter Michael, Harold Gordon
Abstract excerpt
BACKGROUND: It is widely considered that exposure to maternal cigarette smoking in pregnancy has risk effects on offspring attention-deficit/hyperactivity disorder (ADHD). This view is supported by consistent observations of association. It is, however, impossible to be certain of adequate control for confounding factors with observational designs. We use a novel "natural experiment" design that separates...
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