Abstract
Bladder cancer is a significant health issue across the United States of America (USA). Evidence of unequal distribution of a disease or condition's incidence and mortality would suggest that important geographically-defined variables may play a role. In this study, a spatial cluster analysis of bladder cancer mortality identified significant hot spots in some parts of the USA. Regression analysis modelling estimated the effects of selected covariates or risk factors for bladder cancer mortality and also incidence. Spatial heat maps and cluster identification were done for mortality and incidence. The main result was the significant association between bladder cancer mortality and arsenic intake from well water. A similar result was also obtained for cancer incidence and arsenic. Additionally, there are certain geographic areas that appear to have bladder cancer mortality rates beyond the simple association with the studied covariates. These geographic areas warrant further investigation to better understand why cancer mortality is unusually high in such geographic areas and to potentially identify additional local concerns or needs to further address bladder cancer mortality in those specific sites.
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