Prostate cancer mortality rates compared to urologist population densities and prostate-specific antigen screening levels on a state-by-state basis in the United States of America

We hypothesized that prostate cancer screening and availability of urologists among states may be associated with reduced prostate cancer mortality in the United States. To test this hypothesis, state-specific prostate cancer mortality rates for white males were compared to urologist population densities and prostate-specific antigen (PSA) screening rates on a state-by-state basis. The urologist population density was calculated by dividing the...