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
Department of Public Health Sciences, University of Rochester School of Medicine and Dentistry, 265 Crittenden Boulevard, Rochester, New York, USA.
Department of Biostatistics and Epidemiology, University of Pennsylvania Perelman School of Medicine, 423 Guardian Drive, Philadelphia, Pennsylvania, USA.
J Expo Sci Environ Epidemiol. 2014 Sep-Oct;24(5):532-6. doi: 10.1038/jes.2014.23. Epub 2014 Apr 16.
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.
双酚A(BPA)暴露对人类健康的潜在影响是一个公共卫生问题。为了设计出有足够效力的流行病学研究来探讨潜在的健康影响,需要有关孕期采集的系列尿液标本中BPA浓度可重复性的数据。为了提供更多关于孕妇尿液标本可重复性的数据,代际R研究(荷兰鹿特丹)中的80名女性在孕期<18周、18 - 25周和>25周时分别提供了一份随机尿液标本。通过组内相关系数(ICC)估计的可重复性为0.32(95%置信区间:0.18 - 0.46),以肌酐为基础时为0.31(95%置信区间:0.16 - 0.47)。尽管在代际R研究中观察到的ICC略高于先前关于BPA的可重复性研究,但它仍表明个体内部存在高度变异性,这给设计有足够效力的流行病学研究带来了挑战。