Breast Cancer Risk from Contaminated Drinking Water in Cape Cod
Author Information
Author(s): Lisa G. Gallagher, Veronica M. Vieira, David Ozonoff, Thomas F. Webster, Ann Aschengrau
Primary Institution: Boston University School of Public Health
Hypothesis
Does exposure to tetrachloroethylene (PCE) in drinking water increase the risk of breast cancer among women in Cape Cod?
Conclusion
The study found a modest increase in breast cancer risk for women with high PCE exposure levels, but the overall exposure assessment was improved with new modeling techniques.
Supporting Evidence
- The study confirmed a modest increase in breast cancer risk for women with high PCE exposure levels.
- The new exposure assessment method identified more individuals as exposed compared to previous analyses.
- Statistical analysis showed a significant correlation between modeled and measured PCE concentrations.
Takeaway
Women who drank water contaminated with a chemical called PCE might have a slightly higher chance of getting breast cancer, but scientists used better methods to check this.
Methodology
The study used a modified exposure assessment method incorporating water distribution modeling software to analyze the risk of breast cancer associated with PCE exposure.
Potential Biases
Potential biases may arise from the non-blinded nature of interviews and the reliance on self-reported data.
Limitations
The study's reliance on historical water samples and potential inaccuracies in exposure estimates may limit the findings.
Participant Demographics
Participants were predominantly white, over 60 years old, and postmenopausal at diagnosis.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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