Quitting smoking during the first trimester of pregnancy still puts the baby at risk

Although quitting smoking during the first trimester of pregnancy reduces the risk of low birth weight, it isn’t enough to protect the unborn child from being born shorter and with smaller brain size, a new study from the University of Eastern Finland shows. The study looked at 1.4 million mother-child pairs in Finland, analysing the effect of maternal smoking on newborns’ body size and body proportions when the mother had smoked only during the first trimester as opposed to continued smoking. The findings were published in BMJ Open yesterday.
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