Correlations among human blood levels of specific PCB congeners and implications for epidemiologic studies
Specific congeners of PCBs may differ with respect to their human health risks. For epidemiologic studies, however, measuring levels of specific congeners—as compared with estimating the concentration of total PCBs present, may be of limited value if levels of specific congeners are highly correlate...
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Published in | American journal of industrial medicine Vol. 32; no. 6; pp. 606 - 613 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
John Wiley & Sons, Inc
01.12.1997
Wiley-Liss |
Subjects | |
Online Access | Get full text |
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Summary: | Specific congeners of PCBs may differ with respect to their human health risks. For epidemiologic studies, however, measuring levels of specific congeners—as compared with estimating the concentration of total PCBs present, may be of limited value if levels of specific congeners are highly correlated. We examined the correlations among levels of specific congeners in three groups: controls from a case‐control study of breast cancer in North Carolina and two groups from Wisconsin with exposure to fish from contaminated waters. Levels of specific congeners were, in general, highly correlated (Pearson r > 0.80). However, the level of congener 180, a heptachlorobiphenyl, tended to be less correlated with levels of lower‐chlorinated biphenyls. Among the implications of these findings are that measurement of a select group of congeners may yield essentially the same information as measurement of a large panel, and may be more cost efficient. Am. J. Ind. Med. 32:606–613, 1997. © 1997 Wiley‐Liss, Inc. |
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Bibliography: | ark:/67375/WNG-HC6NR5R8-Z istex:08558DE87734279080395AA74FD065642136B2CA National Institute of Health - No. R01-ES07 128 ArticleID:AJIM6 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0271-3586 1097-0274 |
DOI: | 10.1002/(SICI)1097-0274(199712)32:6<606::AID-AJIM6>3.0.CO;2-N |