a study of prostate cancer was initiated in Des Moines, Iowa. A total of 1,000 men,...

a study of prostate cancer was initiated in Des Moines, Iowa. A total of 1,000 men, 55-64 years of age, with no prior evidence of prostate cancer were enrolled in the study. Each year during the study, the men being observed were examined and tested for the presence of prostate cancer. The results of the annual exam revealed: 10 cases confirmed at the 1st exam, 15 additional cases at 2nd exam, 20 additional cases at 3rd exam, 25 additional cases at the 4th exam. What is the incidence density of prostate cancer in the group?

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orchestra answered 11 months ago

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