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ISRN Endocrinol. 2012;2012:965243. doi: 10.5402/2012/965243. Epub 2012 Jul 18.

Urinary bisphenol a levels and measures of obesity: results from the national health and nutrition examination survey 2003-2008.

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  • 1Department of Community Medicine, West Virginia University School of Medicine, Robert C. Byrd Health Sciences Center, 1 Medical Center Drive, P.O. Box 9190, Morgantown, WV 26505-9190, USA.

Abstract

Bisphenol A (BPA) is a widely used chemical. We examined the association between urinary BPA levels and obesity in the National Health and Nutritional Examination Survey (NHANES) 2003-2008. The main outcome of interest was obesity defined as (1) body mass index (BMI) ≥ 30 Kg/m(2) and (2) waist circumference (WC) ≥ 102 cm in men and ≥ 88 cm in women. Urinary BPA levels were examined in quartiles. Overall, we observed a positive association between increasing levels of urinary BPA and both measures of obesity, independent of potential confounding factors including, smoking, alcohol consumption, and serum cholesterol levels. Compared to quartile 1 (referent), the multivariate-adjusted odds ratio (95% confidence interval) associated with quartile 4 for BMI-based obesity was 1.69 (1.30-2.20); P-trend < 0.0001 and for WC-based obesity was 1.59 (1.21-2.09); P-trend = 0.0009. This association between BPA and both measures of obesity was consistently present across gender and race-ethnic groups (all P-trend < 0.05). Elevated levels of urinary BPA are associated with measures of obesity independent of traditional risk factors. This association is consistently present across gender and race-ethnic groups. Future prospective studies are needed to confirm or disprove this finding.

PMID:
22852093
[PubMed]
PMCID:
PMC3407638
Free PMC Article
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