Spatial models of potentially hazardous environmental exposures and breast cancer mortality rates among United States women
Surprisingly high associations between women's breast cancer mortality rates and women's employment in agriculture and in manufacturing were found by a previous study (Thomas et al. 2001). This thesis attempts to cross-validate those important findings. It examined the relationship between women's potential exposure to selected risk factors and female breast cancer mortality rates at the county-level in selected states as well as for the entire contiguous United States.
The results of the Thomas et al. (2001) study are not closely replicated.
Spatial regression models are only estimated for counties in the contiguous United States. It was found that the environmental risk chemicals have a complex relation to women's breast cancer mortality rates. The pesticides used within a county are associated with decreased breast cancer mortality rates while the pesticides used in the spatially neighboring counties are associated with increased breast cancer mortality rates. Manufacturing chemical releases also show a two-side effect, which is positively related to breast cancer mortality rates in the same county, but negatively related to breast cancer in the neighboring counties.
Further study can be improved by better data and research methods. (Abstract shortened by UMI.)
0354: Occupational safety