A robust literature indicates a link between maternal smoking during pregnancy and subsequent diagnosis of attention-deficit/hyperactivity disorder (ADHD) in children. However, questions have been raised regarding whether this association is causal and attributable to intrauterine effects or due to other unmeasured factors. Gustavson and colleagues1 tested this question using a large prospective birth cohort; the findings from their thorough analyses are presented in their paper, “Smoking in pregnancy and child ADHD” published in the current issue of Pediatrics. The results showed that maternal smoking during pregnancy was not more strongly associated with childhood ADHD than maternal smoking during previous pregnancies, paternal smoking, or grandmothers’ smoking while pregnant with the mother. In addition, the analyses looking at sibling controls also did not suggest that children were more likely to exhibit ADHD symptoms when mothers smoked during pregnancy compared with siblings who did not experience prenatal smoke exposure. This well-designed...
Prenatal Smoke Exposure and ADHD: Advancing the Field
POTENTIAL CONFLICT OF INTEREST: The authors have indicated they do not have any potential conflicts of interest to disclose.
FINANCIAL DISCLOSURE: The authors have indicated they do not have any financial relationships relevant to this article to disclose.
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Julia C. Schechter, Scott H. Kollins; Prenatal Smoke Exposure and ADHD: Advancing the Field. Pediatrics February 2017; 139 (2): e20163481. 10.1542/peds.2016-3481
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