Primal Health Databank Entry

Entry No:1041
Title:Smoking in Pregnancy and Child ADHD
Author(s):Gustavson K, Ystrom E, et al
Reference:Pediatrics. 2017 Feb;139(2). pii: e20162509. doi: 10.1542/peds.2016-2509.
Place of Study:Norway
Abstract:The current study used data from the Norwegian Mother and Child Cohort Study (n > 100‚ÄČ000 children). Mothers and fathers reported on smoking during pregnancy, and mothers reported on smoking in previous pregnancies and their mother's smoking when pregnant with them. Mothers reported on child ADHD symptoms at 5 years of age. Information about child ADHD diagnosis was obtained from the Norwegian Patient Registry. Maternal smoking during pregnancy was not more strongly associated with offspring ADHD diagnosis than was paternal smoking, grandmother's smoking when pregnant with mother, or maternal smoking in previous pregnancies. Sibling control analyses showed no association between maternal smoking in pregnancy and child ADHD symptoms among siblings discordant for maternal smoking. CONCLUSIONS: These results suggest that the association between maternal smoking during pregnancy and offspring ADHD is not due to causal intrauterine effects, but reflects unmeasured confounding.
Keyword(s):ADHD, smoking in pregnancy
Discussion:No discussion mentioned for this entry
See Also:No related entries mentioned for this entry

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