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Researchers have found a causal link between maternal nicotine use during pregnancy and a child having ADHD (Full text). The new study also hints-but doesn't prove-that nicotine-replacement products used during pregnancy, such as patches and gum, could pose the same risk to children.
In this large cohort of children followed up to 8 to 14 years of age, we found that both maternal and paternal smoking during pregnancy were associated with an elevated risk for ADHD, based on hospital diagnosis, medication, and hyperactivity/inattention scores. The association was consistently stronger for maternal smoking than for paternal smoking and was also found for mother's use of nicotine replacement during pregnancy. These results suggest a causal effect of smoking (and nicotine) during fetal life or other factors related to maternal nicotine dependance. The findings for paternal smoking could reflect an effect of passive smoking but may also be a result of social or genetic confounding
(Score: 3, Informative) by cykros on Wednesday July 23 2014, @12:52AM
Causal - Adjective
1: expressing or indicating cause : causative a causal clause introduced by since
2: of, relating to, or constituting a cause the causal agent of a disease
3: involving causation or a cause : marked by cause and effect a causal link
4: arising from a cause a causal development
Merriam-Webster [merriam-webster.com]
Not sure why "admitting" that it's a causal link somehow makes you feel any better. A study claiming something to be causal actually makes some pretty strong claims (as opposed to admitting it being merely correlational).
(Score: 1) by MorbidBBQ on Thursday July 24 2014, @03:24PM
oh damn...that engrish language was playing heads with my game.
My bad; Casual != Causal.