Look at "Table 2. African American to White Cancer Incidence Rate
Ratios, US, 1995-1999" in:
http://www.cancer.org/downloads/STT/861403.pdf
It appears that, except for myeloma, incidence is *lower* in African
Americans than white, in the diseases of interest. If you look at
the mortality rate table, though, the frequencies are reversed
because: "In general, African Americans have a decreased likelihood
of surviving 5 years after diagnosis than whites for all cancer sites
(Figure 3), and at all stages of
diagnosis (Figure 4). Much or all of these differences are believed
to be due to poverty,7 disparities in treatment, 8,9 reduced access
to medical care,10 or diagnosis at a later stage,..."
So, in this case, especially for leukemia, which is long associated
by some with power lines, despite poverty being an issue for
mortality due to lack of medical care, the incidence rate is actually
*less*.
Horace Heffner
http://www.mtaonline.net/~hheffner/
