Children absorb less nicotine from secondhand vapor e-cigarettes than tobacco smoke produced by traditional cigarettes.
Children exposed to secondhand vapor from e-cigarettes absorb 84% less nicotine than those exposed to tobacco smoke from traditional cigarettes. However, nicotine absorption is still five times higher in children exposed to vapor than in those with no exposure.Researchers analyzed data from the US Continuous National Health and Nutrition Examination Survey collected between 2017 and 2020.
A total of 1777 children aged 3-11 years were included, with serum cotinine levels < 15 μg/L to exclude current firsthand nicotine use. Participants were categorized on the basis of reported exposure to secondhand smoke, secondhand vapor, or neither in the prior 7 days.Nicotine absorption was highest among children exposed to secondhand cigarette smoke only, with a SCC of 0.494 μg/L .
Children exposed to secondhand vapor had an SCC of 0.081 pg/L , 83.6% lower than those exposed to secondhand smoke , 96.7% lower than those with secondhand smoke exposure (After covariate adjustment, the results remained consistent, indicating significantly lower nicotine absorption in children exposed to secondhand vapor than to secondhand smoke.
This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.
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