title: Urinary bisphenol A and obesity in U.S. children.
abstract: Childhood obesity, a major public health problem, can lead to cardiovascular disease in adulthood. Studies have implicated exposure to bisphenol A (BPA), a commonly used chemical, in the development of obesity in adults. However, literature is limited on this association in children. We examined the association between urinary BPA and obesity in children aged 6-18 years from the National Health and Nutrition Examination Survey (2003-2008). The primary exposure was urinary BPA and the outcome was obesity, defined as the ≥ 95th percentile of body mass index specific for age and sex. We found a positive association between increasing levels of urinary BPA and obesity, independent of age, sex, race/ethnicity, education, physical activity, serum cotinine, and urinary creatinine. Compared with children in the lowest quartile of BPA (<1.5 ng/mL), children in the highest quartile (>5.4 ng/mL) had a multivariable odds ratio for obesity of 2.55 (95% confidence interval (CI): 1.65, 3.95) (Ptrend < 0.01). The observed positive association was predominantly present in boys (odds ratio = 3.80, 95% CI: 2.25, 6.43) (Ptrend < 0.001) and in non-Hispanic whites (odds ratio = 5.87, 95% CI: 2.15, 16.05) (Ptrend < 0.01). In a representative sample of children, urinary BPA was associated with obesity, predominantly in non-Hispanic white boys, independent of major risk factors.
authors.affiliation: Department of Epidemiology, School of Public Health, West Virginia University, Robert C. Byrd Health Sciences Center, 1 Medical Center Drive, P.O. Box 9190, Morgantown, WV 26506, USA. rbhandari@hsc.wvu.edu
authors.forename: Ruchi
authors.initials: R
authors.lastname: Bhandari
authors.forename: Jie
authors.initials: J
authors.lastname: Xiao
authors.forename: Anoop
authors.initials: A
authors.lastname: Shankar
mesh_terms: D000293:Adolescent; D001559:Benzhydryl Compounds / Q000652:urine*; D015992:Body Mass Index; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009749:Nutrition Surveys; D009765:Obesity / Q000139:chemically induced* / Q000208:ethnology; D010636:Phenols / Q000652:urine*; D012737:Sex Factors; D014481:United States / Q000453:epidemiology; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D010636:Phenols; C006780:bisphenol A; D000098826:Bisphenol A Compounds
keywords: NHANES; bisphenol A; body mass index; children; obesity
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