Tuesday, August 11, 2015

Children and Second-Hand Tobacco Smoke

There are many reasons to avoid exposing children to second-hand tobacco smoke. We know that second-hand smoke exposure increases the risk of Sudden Infant Death Syndrome, respiratory problems, and learning and behavior problems.

A new study in the August issue of The Journal of Pediatrics suggests that exposure to tobacco smoke may also impair motor development in children. Children aged 7-9 had urine cotinine levels measured as a marker for exposure to second-hand smoke. Findings were adjusted to account for other factors known to affect motor development. The children with cotinine in their urine were more likely to have impairment in a variety of motor abilities including coordination, balance, and strength when compared to children who did not have cotinine in their urine.

A second study in the same issue of J Peds found similar impairments in motor development if children were exposed to tobacco prenatally through maternal smoking during pregnancy. When we think of tobacco smoke, we usually think about its effects on the respiratory system but it is clear that it also has effects on a child’s developing nervous system.

We would hope that no children would be exposed to second-hand smoke but we also recognize that it is very difficult for parents and family members to stop smoking. Keeping smoke as far away from children as possible is good but we also know that children whose family members smoke outside, away from them, will also get some exposure. Ultimately, stopping smoking is best for the smoker and everyone around him. It is possible to stop and I have had the opportunity to celebrate along with the parents of some of my patients when they have been able to quit.

For those who are interested in stopping, I would encourage you to talk with your own physician about options which may make it easier, for your own health and the health of those around you.