A recent study examining the association between prenatal BPA (bisphenol-A) exposure and lung function has been making headlines, often with titles similar to “BPA linked to asthma.” However, the actual study is about as bad as they come. You can just as easily conclude anything about BPA exposure and lung function as you can who will win the All Star Game in 2019. The study, published in JAMA Pediatrics, examined whether pre- and post-natal BPA exposure was associated with lung function in children at 4 and 5 years old. BPA exposure was measured through maternal urine samples collected at the 16th and 26th weeks of pregnancy, and child urine samples were collected annually. The lung function of the children was examined by two measures: parent-reported incidence of wheezing and forced expiratory volume (FEV). The study participants included almost 400 pregnant women and their babies. Read more.
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