Heavy-metal associated breast cancer and colorectal cancer hot spots and their demographic and socioeconomic characteristics
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View abstract on PubMed
Summary
This summary is machine-generated.Higher exposure to metals like cadmium and arsenic is linked to increased odds of living in breast and colorectal cancer hotspots, particularly in marginalized communities. Further research is needed to understand individual metal exposures and cancer disparities.
Area Of Science
- Environmental health
- Cancer epidemiology
- Toxicology
Background
- Cancer registries are crucial for identifying cancer clusters and investigating environmental factors.
- The impact of metal carcinogens (cadmium, arsenic, nickel, chromium(VI)) on breast and colorectal cancer is not well understood.
- Marginalized communities often face disproportionate exposure to environmental metals, potentially contributing to cancer disparities.
Purpose Of The Study
- To investigate the association between area-based metal exposures and the likelihood of residing in breast and colorectal cancer hotspots.
- To characterize the populations living in heavy metal-associated cancer hotspots.
Main Methods
- Mapped breast and colorectal cancer hotspots in Kentucky using state tumor registry data.
- Extracted area-based ambient metal exposures (cadmium, arsenic, nickel, chromium(VI)) from the 2014 National Air Toxics Assessment for census tracts.
- Employed logistic regression models to analyze the association between metal concentrations and cancer hotspot residency, controlling for individual and neighborhood factors.
Main Results
- Increased ambient metal exposures correlated with higher odds of residing in both breast and colorectal cancer hotspots.
- Populations within these cancer hotspots were disproportionately Black and exhibited indicators of lower socioeconomic status.
- Adjusting for demographic and lifestyle factors did not substantially alter the observed associations between metal exposures and cancer hotspots.
Conclusions
- Ambient metal exposures appear to contribute to elevated cancer rates in specific geographic areas, often populated by marginalized communities.
- Individual-level studies are necessary to fully understand the relationship between metal exposures and cancer disparities.
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