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Abstract Title:

Urinary concentrations of four parabens in the U.S. population as almost universally detectable, according to the 2005-2006 National Health and Nutrition Examination Survey.

Abstract Source:

Environ Health Perspect. 2010 May ;118(5):679-85. Epub 2010 Jan 4. PMID: 20056562

Abstract Author(s):

Antonia M Calafat, Xiaoyun Ye, Lee-Yang Wong, Amber M Bishop, Larry L Needham

Article Affiliation:

Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia 30341 , USA. Acalafat@cdc.gov

Abstract:

BACKGROUND: Parabens are widely used as antimicrobial preservatives in cosmetics, -pharmaceuticals, and food and beverage processing.

OBJECTIVES: We assessed exposure to methyl, ethyl, propyl, and butyl parabens in a representative sample of persons>or= 6 years of age in the U.S. general population from the 2005-2006 National Health and Nutrition Examination Survey.

METHODS: We analyzed 2,548 urine samples by using online solid-phase extraction coupled to isotope dilution-high-performance liquid chromatography/tandem mass spectrometry.

RESULTS: We detected methyl paraben (MP) and propyl paraben (PP) in 99.1% and 92.7% of the samples, respectively. We detected ethyl (42.4%) and butyl (47%) parabens less frequently and at median concentrations at least one order of magnitude lower than MP (63.5 microg/L) and PP (8.7 microg/L). Least-square geometric mean (LSGM) concentrations of MP were significantly higher (por= 60 years). Adolescent and adult females had significantly higher (p<0.01) LSGM concentrations of MP and PP than did adolescent and adult males. Females were more likely than males [adjusted odds ratios (ORs) and 95% confidence intervals (CIs): MP, 3.2 (2.99-5.27); PP, 4.19 (2.34-7.49)] and non-Hispanic blacks were more likely than non-Hispanic whites [MP, 4.99 (2.62-9.50); PP, 3.6 (1.86-7.05)] to have concentrations above the 95th percentile.

CONCLUSIONS: The general U.S. population was exposed to several parabens during 2005-2006. Differences in the urinary concentrations of MP and PP by sex and race/ethnicity likely reflect the use of personal care products containing these compounds.

Study Type : Human Study

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Sayer Ji
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