Skip Navigation LinksHome > May 2013 - Volume 55 - Issue 5 > Tibial Bone Lead, but Not Serum Polychlorinated Biphenyl, Co...
Journal of Occupational & Environmental Medicine:
doi: 10.1097/JOM.0b013e318285f3fd
Original Articles

Tibial Bone Lead, but Not Serum Polychlorinated Biphenyl, Concentrations Are Associated With Neurocognitive Deficits in Former Capacitor Workers

Seegal, Richard F. PhD; Fitzgerald, Edward F. PhD; McCaffrey, Robert J. PhD; Shrestha, Srishti MPH; Hills, Elaine A. MA; Wolff, Mary S. PhD; Haase, Richard F. PhD; Todd, Andrew C. PhD; Parsons, Patrick J. PhD; Molho, Eric S. MD; Higgins, Donald S. MD; Factor, Stewart A. DO; Seibyl, John P. MD

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Objective: To determine the relationships between tibial bone lead and serum polychlorinated biphenyl (PCB) concentrations and neurocognitive function.

Methods: The study population consisted of men and women former capacitor workers had been employed by the General Electric Corporation between 1946 and 1977. Regression analyses evaluated the association between neurocognitive function and lipid-adjusted serum PCB and tibia lead concentrations.

Results: Tibia lead, but not serum PCBs, was significantly correlated with deficits in neurocognitive function. Women showed more associations between tibia lead and neurocognitive function than men, especially regarding executive function.

Conclusions: These results demonstrate that low levels of tibia lead, but not serum PCBs, are associated with neurocognitive deficits and that postmenopausal women show a greater number of deficits in executive function than men.

©2013The American College of Occupational and Environmental Medicine


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