Impact of PCB Exposure on Bone Mineral Density
Author Information
Author(s): Susan Hodgson, Laura Thomas, Elena Fattore, P. Monica Lind, Tobias Alfven, Lennart Hellström, Helen Håkansson, Grazia Carubelli, Roberto Fanelli, Lars Jarup
Primary Institution: Institute of Health and Society, Newcastle University
Hypothesis
Is organochlorine exposure associated with bone mineral density in a population aged 60–81 years living near a contaminated river?
Conclusion
Environmental organochlorine exposures may lead to sex-specific changes in bone mineral density.
Supporting Evidence
- Men showed a negative association between PCB-118 levels and bone mineral density.
- Women had higher levels of PCB-118 and p,p′-DDE compared to men.
- 30.5% of males and 18.6% of females had low bone mineral density.
Takeaway
This study found that exposure to certain chemicals in the environment can affect bone health, especially in older men and women.
Methodology
Bone mineral density was measured using dual energy X-ray absorptiometry, and blood samples were analyzed for various PCBs.
Potential Biases
Potential confounding variables could not be fully accounted for, which may affect the results.
Limitations
The study's power to detect significant relationships was limited when analyzing males and females separately, and early life exposures were not assessed.
Participant Demographics
Participants were aged 60–81 years, with 154 males and 167 females.
Statistical Information
P-Value
0.020
Confidence Interval
1.01–1.12
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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