Polychlorinated Biphenyl (PCB) Exposure and Diabetes: Results from the Anniston Community Health Survey.

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Title: Polychlorinated Biphenyl (PCB) Exposure and Diabetes: Results from the Anniston Community Health Survey.
Authors: Silverstone, Allen E.1 silversa@upstate.edu, Rosenbaum, Paula F.1, Weinstock, Ruth S.1,2, Bartell, Scott M.3, Foushee, Herman R.4, Shelton, Christie5, Pavuk, Marian6
Source: Environmental Health Perspectives. May2012, Vol. 120 Issue 5, p727-732. 6p. 5 Charts, 1 Graph.
Subject Terms: *Pollutants, *Epidemiology, *Polychlorinated biphenyls, Diagnosis of diabetes, Diabetes risk factors, Risk factors of environmental exposure, Analysis of variance, Blood testing, Chi-squared test, Confidence intervals, Statistical correlation, Diabetes, Lipids, Multivariate analysis, Questionnaires, Regression analysis, Research funding, Statistical sampling, Statistics, Surveys, T-test (Statistics), Logistic regression analysis, Data analysis, Disease prevalence, Cross-sectional method, Data analysis software, Descriptive statistics, History
Geographic Terms: Alabama
Abstract: Background: Polychlorinated biphenyls (PCBs) manufactured in Anniston, Alabama, from 1929 to 1971 caused significant environmental contamination. The Anniston population remains one of the most highly exposed in the world. Objectives: Reports of increased diabetes in PCB-exposed populations led us to examine possible associations in Anniston residents. Methods: Volunteers (n = 774) from a cross-sectional study of randomly selected households and adults who completed the Anniston Community Health Survey also underwent measurements of height, weight, fasting glucose, lipid, and PCB congener levels and verification of medications. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the relationships between PCBs and diabetes, adjusting for diabetes risk factors. Participants with prediabetes were excluded from the logistic regression analyses. Results: Participants were 47% African American, 70% female, with a mean age of 54.8 years. The prevalence of diabetes was 27% in the study population, corresponding to an estimated prevalence of 16% for Anniston overall; the PCB body burden of 35 major congeners ranged from 0.11 to 170.42 ppb, wet weight. The adjusted OR comparing the prevalence of diabetes in the fifth versus first quintile of serum PCB was 2.78 (95% CI: 1.00, 7.73), with similar associations estimated for second through fourth quintiles. In participants < 55 years of age, the adjusted OR for diabetes for the highest versus lowest quintile was 4.78 (95% CI: 1.11, 20.6), whereas in those ≥ 55 years of age, we observed no significant associations with PCBs. Elevated diabetes prevalence was observed with a 1 SD increase in log PCB levels in women (OR = 1.52; 95% CI: 1.01, 2.28); a decreased prevalence was observed in men (OR = 0.68; 95% CI: 0.33, 1.41). Conclusions: We observed significant associations between elevated PCB levels and diabetes mostly due to associations in women and in individuals < 55 years of age. [ABSTRACT FROM AUTHOR]
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 without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. 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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  Data: Polychlorinated Biphenyl (PCB) Exposure and Diabetes: Results from the Anniston Community Health Survey.
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Environmental+Health+Perspectives%22&quot;&gt;Environmental Health Perspectives&lt;/searchLink&gt;. May2012, Vol. 120 Issue 5, p727-732. 6p. 5 Charts, 1 Graph.
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  Data: Background: Polychlorinated biphenyls (PCBs) manufactured in Anniston, Alabama, from 1929 to 1971 caused significant environmental contamination. The Anniston population remains one of the most highly exposed in the world. Objectives: Reports of increased diabetes in PCB-exposed populations led us to examine possible associations in Anniston residents. Methods: Volunteers (n = 774) from a cross-sectional study of randomly selected households and adults who completed the Anniston Community Health Survey also underwent measurements of height, weight, fasting glucose, lipid, and PCB congener levels and verification of medications. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the relationships between PCBs and diabetes, adjusting for diabetes risk factors. Participants with prediabetes were excluded from the logistic regression analyses. Results: Participants were 47% African American, 70% female, with a mean age of 54.8 years. The prevalence of diabetes was 27% in the study population, corresponding to an estimated prevalence of 16% for Anniston overall; the PCB body burden of 35 major congeners ranged from 0.11 to 170.42 ppb, wet weight. The adjusted OR comparing the prevalence of diabetes in the fifth versus first quintile of serum PCB was 2.78 (95% CI: 1.00, 7.73), with similar associations estimated for second through fourth quintiles. In participants &lt; 55 years of age, the adjusted OR for diabetes for the highest versus lowest quintile was 4.78 (95% CI: 1.11, 20.6), whereas in those ≥ 55 years of age, we observed no significant associations with PCBs. Elevated diabetes prevalence was observed with a 1 SD increase in log PCB levels in women (OR = 1.52; 95% CI: 1.01, 2.28); a decreased prevalence was observed in men (OR = 0.68; 95% CI: 0.33, 1.41). Conclusions: We observed significant associations between elevated PCB levels and diabetes mostly due to associations in women and in individuals &lt; 55 years of age. [ABSTRACT FROM AUTHOR]
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  Data: &lt;i&gt;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 without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. 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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.1289/ehp.1104247
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      – TitleFull: Polychlorinated Biphenyl (PCB) Exposure and Diabetes: Results from the Anniston Community Health Survey.
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