Figure 3.

Observed vs. expected block group rates of high grade tumors, adjusted for case characteristics, and significant clusters. Proportion of prostate cancer cases with histologic grade of 3 or 4, compared to proportion expected based on case characteristics of age, race and year of diagnosis.

Klassen et al. International Journal of Health Geographics 2005 4:1   doi:10.1186/1476-072X-4-1
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