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Maternal Exposure to Bisphenol-A and Fetal Growth Restriction: A Case-Referent Study

Author

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  • Igor Burstyn

    (Division of Preventive Medicine, Department of Medicine, Faculty of Medicine and Dentistry, The University of Alberta, Edmonton, AB T6G 2G3, Canada
    Department of Environmental and Occupational Health, School of Public Health, Drexel University, Philadelphia, PA 19102, USA)

  • Jonathan W. Martin

    (Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, The University of Alberta, Edmonton, AB T6G 2B7, Canada)

  • Sanjay Beesoon

    (Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, The University of Alberta, Edmonton, AB T6G 2B7, Canada)

  • Fiona Bamforth

    (Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, The University of Alberta, Edmonton, AB T6G 2B7, Canada)

  • Qiaozhi Li

    (School of Public Health, The University of Alberta, Edmonton, AB T6G 1C9, Canada)

  • Yutaka Yasui

    (School of Public Health, The University of Alberta, Edmonton, AB T6G 1C9, Canada)

  • Nicola M. Cherry

    (Division of Preventive Medicine, Department of Medicine, Faculty of Medicine and Dentistry, The University of Alberta, Edmonton, AB T6G 2G3, Canada)

Abstract

We conducted a case-referent study of the effect of exposure to bisphenol-A on fetal growth in utero in full-term, live-born singletons in Alberta, Canada. Newborns <10 percentile of expected weight for gestational age and sex were individually matched on sex, maternal smoking and maternal age to referents with weight appropriate to gestational age. Exposure of the fetus to bisphenol-A was estimated from maternal serum collected at 15–16 weeks of gestation. We pooled sera across subjects for exposure assessment, stratified on case-referent status and sex. Individual 1:1 matching was maintained in assembling 69 case and 69 referent pools created from 550 case-referent pairs. Matched pools had an equal number of aliquots from individual women. We used an analytical strategy conditioning on matched set and total pool-level values of covariates to estimate individual-level effects. Pools of cases and referents had identical geometric mean bisphenol-A concentrations (0.5 ng/mL) and similar geometric standard deviations (2.3–2.5). Mean difference in concentration between matched pools was 0 ng/mL, standard deviation: 1 ng/mL. Stratification by sex and control for confounding did not suggest bisphenol-A increased fetal growth restriction. Our analysis does not provide evidence to support the hypothesis that bisphenol-A contributes to fetal growth restriction in full-term singletons.

Suggested Citation

  • Igor Burstyn & Jonathan W. Martin & Sanjay Beesoon & Fiona Bamforth & Qiaozhi Li & Yutaka Yasui & Nicola M. Cherry, 2013. "Maternal Exposure to Bisphenol-A and Fetal Growth Restriction: A Case-Referent Study," IJERPH, MDPI, vol. 10(12), pages 1-14, December.
    • Handle: RePEc:gam:jijerp:v:10:y:2013:i:12:p:7001-7014:d:31235
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    References listed on IDEAS

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    1. Yaakov Malinovsky & Paul S. Albert & Enrique F. Schisterman, 2012. "Pooling Designs for Outcomes under a Gaussian Random Effects Model," Biometrics, The International Biometric Society, vol. 68(1), pages 45-52, March.
    2. Clarice R. Weinberg & David M. Umbach, 1999. "Using Pooled Exposure Assessment to Improve Efficiency in Case-Control Studies," Biometrics, The International Biometric Society, vol. 55(3), pages 718-726, September.
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    Cited by:

    1. Karyn Heavner & Craig Newschaffer & Irva Hertz-Picciotto & Deborah Bennett & Igor Burstyn, 2015. "Pooling Bio-Specimens in the Presence of Measurement Error and Non-Linearity in Dose-Response: Simulation Study in the Context of a Birth Cohort Investigating Risk Factors for Autism Spectrum Disorder," IJERPH, MDPI, vol. 12(11), pages 1-20, November.

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