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Study suggests possible association between cardiovascular disease, chemical exposure
Date:9/3/2012

ent study, we cannot conclude that the association is causal," the authors comment.

Compared with the reference level of PFOA in quartile 1, the multivariable odds ratio among participants in quartile 4 was 2.01 for CVD and 1.78 for PAD, according to the results.

"In summary, in a representative cross-sectional sample of the U.S. population, we found that higher PFOA levels are positively associated with self-reported CVD and objectively measured PAD. Our findings, however, should be interpreted with caution because of the possibility of residual confounding and reverse causality. Future prospective studies are needed to confirm or refute our findings," the authors conclude.

(Arch Intern Med. Published online September 3, 2012. doi:10.1001/archinternmed.2012.3393. Available pre-embargo to the media at http://media.jamanetwork.com.)

Editor's Note: This study was supported by a National Clinical Research Program grant from the American Heart Association and grants from the National Institute of Environmental Health Sciences, National Institutes of Health. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.

Commentary: Perfluorooctanoic Acid Exposure, Cardiovascular Disease

In a commentary, Debabrata Mukherjee, M.D., M.S., of Texas Tech University Health Sciences Center, El Paso, writes: "These results contribute to the evolving data on the adverse health effects of PFOA, suggesting that PFOA exposure may be potentially related to CVD."

"However, a major limitation is the cross-sectional nature of the study. Given this significant limitation, causality or the temporal nature of the association between PFOA and CVD cannot be concluded from the current analysis," Mukherjee continues.

"Although it seems clear that addi
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Contact: Amy Johns
johnsa@wvuhealthcare.com
304-293-1412
JAMA and Archives Journals
Source:Eurekalert

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