Is maternal smoking during pregnancy a risk factor for attention deficit hyperactivity disorder in children?
In a study performed in 1996, the role of maternal smoking during pregnancy is reviewed as another risk factor for developing ADHD. The subjects in this survey were 6-17 year old boys with ADHD and normal comparison subjects. A total of 140 children with ADHD and their first-degree biological relatives were compared with the 120 control subjects. Information on smoking during pregnancy was obtained from the mothers in a standardized manner by raters that did not know the ADHD status of the mother’s child. The use of illicit drugs or alcohol use during pregnancy did not differ between the two groups. The surveys showed that out of the children with ADHD, twenty-two percent had a history of exposure to maternal smoking during pregnancy, compared with eight percent of the control group children. This data shows a significant positive correlation that remained even after adjustment for socioeconomic status, parental IQ and parental ADHD status. This research indicates that there is a link
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