Preliminary research into the effects of in-utero exposure to the chemical bisphenol-A (BPA) has correlated high levels of the compound with behavioral issues in 3-year-old girls, The Associated Press reports.
The study, published in the journal Pediatrics, found that preschool-aged girls whose mothers had high levels of BPA during pregnancy scored worse--though still within normal range--on behavioral measures including anxiety and hyperactivity. For every 10-fold increase in BPA in the mothers during pregnancy, the study found that girls scored 6 points worse on the behavioral questionnaire given at 3 years.
The results did not seem to be replicated in boys.
Nearly all Americans have measurable BPA levels in their bodies (the pregnant women were given urine tests). The chemical is found in some plastics and food can linings, though increasing numbers of companies are marketing "BPA-free" materials, especially in items intended for use by children.
Researchers called these results "preliminary" and called for further study of BPA's effects on child health. This study was specifically faulted for not tracking other potential behavior-influencing factors, such as the mother's prenatal eating habits.
Parents can consult the U.S. Department of Health and Human Services website for information on current research and advice on managing BPA levels in children.
(image via: http://onmybaby.com)