Baby's first full nappy can reveal mother's smoking

Meconium, the dark and tarry stools passed by a baby during the first few days after birth, can be used to determine how much the mother smoked, or if she was exposed to tobacco smoke during pregnancy. Researchers writing in BioMed Central's open access journal Environmental Health measured tobacco smoke metabolites in meconium samples from 337 babies, finding that they correlated well with reported smoke exposure and other markers of tobacco smoke exposure...

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