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Title: Reproducibility of urinary bisphenol A concentrations measured during pregnancy in the Generation R Study.

Authors: Jusko, Todd A; Shaw, Pamela A; Snijder, Claudia A; Pierik, Frank H; Koch, Holger M; Hauser, Russ; Jaddoe, Vincent W V; Burdorf, Alex; Hofman, Albert; Tiemeier, Henning; Longnecker, Matthew P

Published In J Expo Sci Environ Epidemiol, (2014 Sep-Oct)

Abstract: The potential human health effects of bisphenol A (BPA) exposure are a public health concern. In order to design adequately powered epidemiological studies to address potential health effects, data on the reproducibility of BPA concentration in serial urine specimens taken during pregnancy are needed. To provide additional data on the reproducibility of maternal urine specimens, 80 women in the Generation R Study (Rotterdam, The Netherlands) contributed a spot urine specimen at <18, 18-25, and >25 weeks of pregnancy. Reproducibility, estimated by the intraclass correlation coefficient (ICC), was 0.32 (95% confidence interval: 0.18-0.46), and, on a creatinine basis, 0.31 (95% confidence interval: 0.16-0.47). Although the ICC observed in the Generation R Study is slightly higher than previous reproducibility studies of BPA, it nevertheless indicates a high degree of within-person variability that presents challenges for designing well-powered epidemiologic studies.

PubMed ID: 24736100 Exiting the NIEHS site

MeSH Terms: Adult; Benzhydryl Compounds/urine*; Endocrine Disruptors/urine*; Female; Humans; Netherlands; Phenols/urine*; Pregnancy; Reproducibility of Results; Young Adult

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