Nifty New Risk Calculations of What's Likely to Kill You 18 years ago
I think it was 70% of men past a certain age have prostate cancer. I think in the same study they determined that if you are 65 or older and catch a bought of the prostate cancer, you might as well leave it untreated because you're likely to die from something else before the cancer kills you and the quality of life lost from treatment isn't worth it.