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Biomarker Levels of Toxic Metals among Asian Populations in the United States: NHANES 2011-2012.
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- Author(s): Under, Stephen1; Mitchell, Laura E.1; Delclos, George L.1; Awata, Hiroshi1,2
- Source:
Environmental Health Perspectives. Mar2017, Vol. 125 Issue 3, p306-313. 8p. 4 Charts.- Subject Terms:
*Arsenic; *Arsenic compounds; *Biomarkers; *Cadmium; *Lead; *Mercury; *Smoking; Asians; Age distribution; Analysis of variance; Birthplaces; Black people; Chinese people; Confidence intervals; Hispanic Americans; Probability theory; Race; Research funding; Seafood; Sex distribution; White people; Educational attainment; Data analysis software; Descriptive statistics - Source:
- Additional Information
- Subject Terms:
- Abstract: INTRODUCTION: The Centers for Disease Control and Prevention (CDC) recently found that Asians have considerably higher biomarker levels of cadmium, lead, mercury, and arsenic than whites, blacks, Mexican Americans, and other Hispanics in the United States. OBJECTIVE: Our goal was to further evaluate the higher metal biomarker levels among Asians. METHODS: Biomarker data (blood cadmium, blood lead, blood mercury, urinary total arsenic, and urinary dimethylarsinic acic) from individuals ≥ 6 years of age were obtained from the 2011-2012 National Health and Nutrition Examination Survey (NHANES). We compared geometric mean levels of these five metal biomarkers in Asians with those of four other NHANES race/ethnic groups (white, black, Mexican American, and other Hispanic), and across three Asian subgroups (Chinese, Asian Indian, and other Asian). We also evaluated associations between biomarker levels and sociodemographic, physical, dietary, and behavioral covariates across the Asian subgroups. RESULTS: Asians had significantly higher levels of all five metal biomarkers than other race/ethnic groups (p < 0.05), regardless of sociodemographic, physical, dietary, behavioral, or geographic characteristics. We also found variations in biomarker levels across the Asian subgroups. In general, Asian Indians had lower levels than the other two Asian subgroups, except for blood lead. The following characteristics were found to be significant predictors of several biomarker levels: sex, age, education, birthplace, smoking, and fish consumption. CONCLUSIONS: Overall, the Asian group had the highest geometric mean biomarker levels for all of the five metal variables. Furthermore, we provided evidence that significant variations in the biomarker levels are present across the Asian subgroups in the United States. CITATION: Awata H, Linder S, Mitchell LE, Delclos GL. 2017. Biomarker levels of toxic metals among Asian populations in the United States: NHANES 2011-2012. Environ Health Perspect 125:306-313; http://dx.doi.org/10.1289/EHP27 [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Environmental Health Perspectives is the property of National Institute of Environmental Health Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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